Start-up of the SAMIRA Joint Action: Shaping the Future of Ionizing
Radiation in European Healthcare
Preparatory activities to support Implementation of quality and Safety of Medical ionizing radiation
Applications
Date: April 29th and 30th, 2025
Venue: The Westin Hotel, Zagreb, Croatia (with partial videoconferencing option)
Draft agenda
Day 1: Tuesday April 29th, 2025
* = online participation possible via Microsoft Teams
# Agenda item Time
1 Registration 8.30-9.00h
2 Welcome and Introduction of the workshop* 9.00-10.20h
• Opening remarks
• Background, scope and objectives of the workshop
Speakers tbc
Coffee break 10.20-10.40h
3 PrISMA input for the future Joint Action* 10.40-12.00h
• Introduction of 11 draft project proposals by PrISMA for the future
Joint Action
Speakers tbc
Lunch 12.00-13.00h
4 Breakout sessions to develop the future Joint Action projects 13.00-16.00h
During the breakout sessions the group is divided into 4 groups (project title
are listed below):
• Group 1: Generic justification and optimization of radionuclide
therapies (projects 1, 3)
• Group 2: Individual justification of CT, optimization of IR and image
quality in radiology (projects 2, 5, 11)
• Group 3: Diagnostic reference levels and radiation protection in
pregnancy (projects 4, 7, 8)
• Group 4: Optimization of IGRT, incident learning systems and clinical
audits (projects 6, 9, 10)
5 Reports from the Groups* 16.00-17.00h
• Group 1: Generic justification and optimization of radionuclide
therapies (projects 1, 3)
• Group 2: Individual justification of CT, optimization of IR and image
quality in radiology (projects 2, 5, 11)
• Group 3: Diagnostic reference levels and radiation protection in
pregnancy (projects 4, 7, 8)
• Group 4: Optimization of IGRT, incident learning systems and clinical
audits (projects 6, 9, 10)
Day 2: Wednesday April 30th, 2025
* = Can be followed online via Microsoft Teams
# Agenda item Time
6 PrISMA General Assembly (only for PrISMA consortium members) 08.30-09.15h
7 Breakout sessions to develop the future Joint Action projects 09.15-11.00h
• Group 1: Generic justification and optimization of radionuclide
therapies (projects 1, 3)
• Group 2: Individual justification of CT, optimization of IR and
image quality in radiology (projects 2, 5, 11)
• Group 3: Diagnostic reference levels and radiation protection in
pregnancy (projects 4, 7, 8)
• Group 4: Optimization of IGRT, incident learning systems and
clinical audits (projects 6, 9, 10)
Coffee break 11.00-11.20h
8 Reports from the Groups* 11.20-12.00h
9 Concluding remarks & Next Steps* 12.00-13.00h
• Panel discussion
• Closing words and information about European projects from the
project coordinator
Panel: tbc
Speaker: Charlotte Rosenbaum, Dutch National Institute for Public Health
and Environment (RIVM)
Project titles
Project 1 Strengthening and streamlining generic justification in Europe
Project 2 Individual justification of medical CT procedures
Project 3 A roadmap towards optimizing radionuclide therapy
Project 4 Optimisation of radiation protection in paediatric imaging
Project 5 Optimization of radiation protection in interventional radiology
Project 6 Optimization of image guided radiotherapy
Project 7 Diagnostic reference levels in NM, CT, IR, and radiography procedures of adult patients
Project 8 Radiation protection during pregnancy related to medical exposure
Project 9 Strengthening implementation of incident learning systems
Project 10 Clinical auditing
Project 11 Revisiting European clinical image quality criteria for X-ray imaging supporting clinical
optimization
SUBJECT/TITLE: Strengthening & Streamlining Generic Justification in Europe
Background (relevant SAMIRA project, other relevant EU projects, scientific or regulatory rationale)
Level II (generic) justification considers whether, in general, for a new or existing practice with a specified
objective, the benefits outweigh the risks. In the medical context this includes exposures of both patients and
asymptomatic individuals inside and outside of screening programmes. Furthermore, it explicitly includes the
justification of screening programmes which involve exposures to ionising radiation. Article 19 of Council
Directive 2013/59/EURATOM requires Member States (under Article 55 and Article 5) to ensure that new
classes or types of practices resulting in exposure to ionising radiation are generically justified before being
generally adopted. Furthermore, Member States may consider a review of existing classes or types of
practices whenever there is new and important evidence about their efficacy or potential consequences, or new
and important information about other techniques and technologies.
While there have been some projects focused on individual justification such as EU-JUST CT, there has been
limited focus on how regulatory requirements around generic justification have been implemented and fulfilled
across Member States. Variations in the transposition of these regulations and variation in the types of
organisations or public bodies designated as competent authority is believed to have led to differing
approaches to generic justification.
Furthermore, there has been little consideration of how generic justification fits within the lifecycle of
radiopharmaceuticals and medical devices which emit ionising radiation. Regulation (EU) 2021/2282 on health
technology assessment (HTAR) will apply from 12 January 2025 and aims to improve the availability of
innovative technologies such as medicines and high-risk medical devices to EU patients. However, it has not
been investigated how radiation protection will be considered in the clinical or non-clinical domains of the Core
HTA Model at a European or national level respectively, nor have generic justification requirements been
considered as part of the wider route to market and patient access which may lead to possible unforeseen
delays.
This project will aim to further the implementation of generic justification and establish best practice
recommendation.
Objectives
1. To recognise and map existing approaches to generic justification, and to put forth models of generic
justifications. Worked examples of these different approaches (one of these to focus on
radiopharmaceuticals) will be developed.
2. To identify and map common inputs/steps in the generic justification, HTA and medicines/medical
devices authorisation/certification processes. Worked examples of the overlap and divergent
inputs/steps in the generic justification, HTA and medicines/medical devices authorisation/certification
processes (one of these to focus on radiopharmaceuticals) will be developed.
3. To produce a set of recommendations and advice on best practice conduct of generic justification,
taking into account radiation protection, and how best to maximise effective and efficient use of
resources in Europe.
4. To engage with and raise awareness of generic justification requirements amongst HTA agencies and
medicines/medical device authorities following completion of objectives three and four.
Description of the project (overall description including methods, possible/needed partners, estimated length of a project)
This project has two main components planned over five years. The first component will focus on mapping
approaches to generic justification and assessing the use of clinical evidence (and potential other EUnetHTA
components and inputs) to inform justification decisions. This will require an understanding of the context, key
stakeholders, existing policies and legislation at both a national and EU level. Although the methods have not
yet been finalised, they will likely involve systematic searching, evidence synthesis and landscape analysis to
identify, categorize, map and assess the various approaches to generic justification and the integration of
clinical evidence within those approaches. A survey may also be conducted to supplement these findings.
Collaboration with experts in evidence synthesis, EU medical device and medicines regulation, and radiation
protection will be crucial. Partnerships with competent authorities and international networks for radiation
protection will enhance the planning, development of methods and the execution of this work.
Description of proposed projects WP5, task 5.4
These results will feed into the second component of the project, where the inputs and processes for generic
justification are mapped onto the inputs and processes for health technology assessment, the authorisation
process for radiopharmaceuticals and the conformity assessment process for medical devices. Methods may
include detailed process mapping or policy analysis methods to identify similarities and efficiencies so that we
may quicken patient access while ensuring rigorous and comprehensive assessments still take place. In
addition to the above stakeholders, involvement of HTAR HTA agencies will benefit all aspects of this
component and may facilitate the translation of recommendations into policy changes. Best practice models of
generic justification will be produced and accompanied by a set of recommendations.
It is anticipated that this work would take place over a five-year period, where each objective is completed and
published sequentially, and the final year is dedicated to the establishment of recommendations. Engagement
and dissemination will take place throughout the five-year period.
• Year 1: Protocol and project design
• Year 2: Mapping approaches to generic justification with worked examples.
• Year 3-4: Mapping inputs/steps in the generic justification, HTA and medicines/medical devices
authorisation/certification processes with examples.
• Year 5: Finalising recommendations and proposed best practice models.
Expected outcomes (impact and sustainability)
While we are aware that there are different approaches taken in Member States to generic justification, it is not
clear what these are, who uses what approach and how clinical evidence is used to inform decision making.
Mapping the various approaches to generic justification across Member States will support information
exchange and development of international recommendations and best practice. These recommendations may
help improve patient safety from unjustified practices and improve the justification of radiological procedures
for asymptomatic population screening. Furthermore, analysing these findings in the context of the wider
assessment lifecycle for medical devices and medicinal products may help improve efficiency given the
potential to reduce duplication of efforts across Member States.
Benefits of performing within a JA
A joint action will provide an efficient platform for competent authorities to work towards understanding the
differing approaches to generic justification, supporting meaningful conversations on international best practice,
and identify ways to facilitate reuse of information and reduce duplication of efforts. The involvement of
competent authorities in a joint action will also facilitate the translation of findings directly into policy action.
2
SUBJECT/TITLE: Individual justification of medical CT procedures
Background (relevant SAMIRA project, other relevant EU projects, scientific or regulatory rationale)
Use of ionising radiation is associated with increased risk of cancer. To ensure that only necessary
examinations are carried out, the European Basic Standard Directive, BSSD, states that all individual medical
exposure shall be justified (Art. 55), meaning that the net benefit of the examination must exceed the
associated risks. Furthermore, the referrer and the practitioner are involved in the justification process of
individual medical exposures (Art. 57). The BSSD assign the clinical responsibility of medical exposure to the
medical practitioner, which includes the responsibility for the justification process. Findings from the EU JUST-
CT project have recently indicated that many CT examinations in Europe are unjustified or inappropriate.
Unjustified examinations have strong influence on healthcare systems, public health economy, resources and
waiting times, in addition to exposing individuals to unnecessary radiation. The main suggestions from EU
JUST-CT are to ensure availability of imaging referral guidelines in clinical decision support systems,
improvement of the quality of the referrals, performing regular audits of justification and providing education
and training on justification and clinical audits. This project aims to act on those suggestions, further describe
patterns of potentially unjustified exposures, describe the impact of these potentially unjustified exposures on
the wider health system, and identify more specific corrective actions to reduce potentially unjustified CT
examinations.
Objectives
1. To identify the proportion of potentially unjustified CT examinations
2. To identify waiting times for non-emergency CT examinations
3. To identify the costs associated with the potentially unjustified CT examination
4. To identify underlying causes and implement corrective interventions to reduce the number of
potentially unjustified CT-examinations
Description of the project (overall description including methods, possible/needed partners, estimated length of a project)
The methodology established in the EU JUST-CT pilot study for retrospectively auditing referrals and CT-
examinations will be adapted for use in this project, lasting 4-5 years. Participating countries can choose the
referral guidelines they prefer, for instance iGuide, iRefer, or own national guidelines if they exist. Building on
the findings of EU JUST-CT, this project also seeks to identify waiting times for non-emergency examinations
and the costs associated with the unnecessary ones. An initial part of this project will be to develop the
methods for those additional aspects and identify what outcomes can and cannot be compared between
participating countries.
In line with the recommendations from EU JUST-CT related to regularly performing such audits, all MS can
participate, even if they already have performed such an audit. Countries which have already performed a
clinical audit on level III justification of CT examinations will bring an additional perspective to issues such as
over-diagnosis, the inappropriate use of health resources, and the development of methods for this project.
Repetition of such audit will also be an effective tool to demonstrate effect of interventions and hopefully a
reduction in the number of potentially unjustified exams can be shown, due to increased awareness based on
previous audit results.
The second part of the project seeks to identify the underlaying causes and find actions that can help reduce
the number of potentially unjustified CT-examinations and help evaluate these effects in terms of waiting lists
and costs. Actions identified may be at local (hospital, referrer etc), national or on European level. While not
part of this project, repeating the audit could give the possibility to evaluate action taken in the nation for
reducing the number of potentially unjustified examinations.
This project is focusing on CT examinations, but the methodology can be used on other modalities like MRI
and other X-ray-examinations as well. There is the possibility to broaden the scope of this project to look at
other imaging modalities perhaps a small scale, even if it is not part of the main project. Ideally, the project
would have contributions from the following agencies: Radiation protection authorities, health authorities,
hospitals, professional societies, health technology assessment bodies.
Expected outcomes (impact and sustainability)
This project would help countries estimate the proportion of potentially unjustified exposures and identify the
impact on costs and resources associated with those. The results from the audit can be used to identify the
corrective interventions to be put in place for reducing this proportion. Reducing the numbers of unjustified
examinations, will release resources (appointments, personnel, costs) that can be used in a more appropriate
way and reduce unnecessary radiation exposure. This project can also be used as a pilot within each country
Description of proposed projects WP5, task 5.4
to establish a system for regularly performing such audits. Conducting such a project, will also increase
awareness on the justification process and the importance of high-quality referrals.
Benefits of performing within a JA
Doing this as a JA will establish a baseline which countries can compare their results to and help identify what
costs are associated with these potentially unjustified examinations. It will also help facilitate the translation of
findings into policy and action. Good initiatives could be shared throughout Europe, with the intention of
reducing exposure of the European population, enabling better use of the resources and reducing the waiting
time for patients.
2
A Roadmap to Optimisation of Radionuclide Therapy
Background (relevant SAMIRA project, other relevant EU projects, scientific or regulatory rationale)
The development of new therapeutic radiopharmaceuticals (tRPhs) is increasing rapidly. There is
therefore a high unmet need to work towards legislative, regulatory and scientific clarity on the
marketing, assessment and use of tRPhs in Europe. This project aims to address these issues
through a series of fixed term collaborative networks, each one involving the stakeholders with the
remit to address each identified issue.
Achieving co-ordinated and coherent regulation of radiopharmaceuticals has been challenging due
to the different regulatory frameworks that apply. The SIMPLERAD project recently assessed the
gaps between the BSSD and pharma legislation regarding therapeutic radiopharmaceuticals and
identified 10 items and recommended actions “to advance the coherent implementation of the
European legal requirements with respect to therapeutic nuclear medicine”. Eight of these items
require coordinated action by European and/or national regulatory bodies in collaboration with the
professions involved in nuclear medicine. These 8 items can be grouped into three main areas of
work: the implementation of dosimetry-based treatment optimisation, radioactive waste
management and patient release criteria.
Furthermore, a new proposal for EU pharmaceutical legislation is currently under review. This
creates an opportunity for coherence and collaboration on narrowing the gaps between the BSSD
and pharma legislation.
The new Health Technology Assessment Regulation ((EU) 2021/2282, “HTAR”) will soon require
joint clinical assessments between member states of new radiopharmaceuticals. However, there are
concerns that some of the requirements of the BSSD are not adequately considered in these
processes. Reimbursement of dosimetry-based treatment optimisation also needs to be considered
in the HTA-evaluation on the national level. These aspects will be further developed in the project
“Strengthening and Streamlining Generic Justification in Europe”.
Objectives
1. To carry out a coordinated effort to address the recommended actions from the
SIMPLERAD project that require action by European and/or national regulatory bodies in
collaboration with the professions.
2. To ensure regular communication and alignment between regulators and stakeholders
involved in therapeutic nuclear medicine to progressively reach a more coherent
implementation of the applicable legislation, including dosimetry-based treatment
optimisation, waste management and patient release criteria.
Description of the project (overall description including methods, possible/needed partners,
estimated length of a project)
Methods: Create working groups on three levels of action, each to address the issues specific to its remit.
Periodic meetings between the participants of the three levels to ensure coherence..
A. European authority level (DG SANTE + DG ENER + EMA (+ DG RTD?))– a) address regulatory
issues and ensure harmonised legislations, b) consider specific grant programmes for research and
training, c) consider creating an EMA Committee for tRPhs, d) resolve possible gaps in HTAR
implementation with regard to tRPhs, as identified in the project Generic Justification.
B. National authority level (NCAs for pharmaceuticals, radiation protection and HTA) – a) regulator
mutual training program on tRPhs and dosimetry-based treatment optimisation, relevant legislation
and procedures; b) tRPh-specific HTA/Authorisation meetings; c) clinical audits on tRPhs and
dosimetry; d) waste management; e) release criteria.
C. Professions (universities + hospitals + professional societies) – create a network of Centres of
Excellence for a) education & training according to mutually agreed core curricula for involved
professions, b) develop infrastructure for efficient clinical trials with state-of-the-art dosimetry for
industry and academia, c) set up clinical data registry for dosimetry data and treatment outcomes, d)
develop stepwise guidance on the process of setting up a theranostics unit
Description of proposed projects WP5, task 5.4
Estimated duration: 5 years
Partners: As specified above (point A-C) + pharmaceutical industry involved in the development of tRPs.
Expected outcomes (impact and sustainability)
The root cause of many of the issues identified in the SIMPLERAD project is lack of awareness and ownership
of the regulations, procedures and requirements on each “side” of the regulation of tRPhs. This situation may
continue and be further complicated by the new HTAR and pharma directive if appropriate action is not taken.
By creating working groups that are competent to address the specific issues on each level, we aim to identify
solutions and close these gaps. The duration of the project ensures not only that there is sufficient time to solve
diverse and complex problems, but also that the habit of communication and collaboration is established. The
latter is the key to a sustainable effect of the project, while the former ensures the immediate impact.
Benefits of performing within a JA
One of the main identified hurdles to implementing the BSSD in therapeutic nuclear medicine is a lack of
mutual understanding and communication between the regulated and regulating bodies involved – health care
providers, radiation protection authorities, medicines authorities and health authorities – both nationally and on
a European level. An important step forward would be to achieve coherence within each member state with
regard to applying both radiation protection, pharma legislation and HTAR to tRPhs. An even greater
achievement would be to have a core of coherence between member states. Without such coherence, the
clinical development of new and effective tRPhs is hampered, Furthermore, the tRPs which do reach the
market will not have the necessary data for optimisation and individual treatment planning.
Abbreviations
tRPh: therapeutic radiopharmaceutical RNT: radionuclide therapy HTA: health technology assessment E&T:
Education & training EMA: European Medicines Agency EANM: European Association of Nuclear Medicine
EFOMP: European Federation of Organisations for Medical Physics NCA: national competent authority NM:
Nuclear medicine RTD: Directorate General for Research and Innovation
References
Reform of the EU pharmaceutical legislation
Health Technology Assessment Regulation 2021/2282
HTA CG Scientific specifications of medicinal products subject to joint clinical assessments
2
SUBJECT/TITLE: Optimisation of Radiation Protection in Paediatric Imaging
Background (relevant SAMIRA project, other relevant EU projects, scientific or regulatory rationale)
Appropriate medical radiological equipment, practical techniques and ancillary equipment must be used in
medical exposure of children, as required in the Article 61 of BSSD. Moreover, all doses due to medical
exposure for radiodiagnostic purposes have to be kept as low as reasonably achievable consistent with
obtaining the required medical information (Article 56). Establishment, regular review, and use of diagnostic
reference levels* for radiodiagnostic examinations, and the availability of guidance for this purpose are
necessary for optimization of protection (Article 56). A number of EU actions have been taken on DRLs (RP 109,
RP180, RP 185 and RP195). All reports highlight the importance of establishing DRLs for high-dose medical
examinations of patients more sensitive to radiation, especially children. The EU Radiation Protection No 185,
established by the project PiDRL, contains basic recommendations on how to establish and to use DRLs for
paediatric x-ray examinations and procedures. DRLs are key optimisation tools: whenever DRLs are consistently
exceeded, appropriate local reviews should be undertaken, and appropriate corrective actions taken.
Objectives
1. Establish Practical Guidelines:
• Develop and disseminate comprehensive guidelines to promote the adoption of principles and best
practices for optimisation of paediatric radiation protection across healthcare settings.
• Facilitate collaboration among a multidisciplinary group of experts (paediatric radiologists,
radiographers, medical physicists, and regulatory authorities) to create practical guidance aimed at
optimizing X-ray examinations (including X-ray, CT, and fluoroscopy) for paediatric patients.
2. Continuous Training Development:
• Design and implement ongoing training programs for radiologists, radiographers, and technologists
focused on best practices in paediatric radiology, encompassing radiation exposure risks, safety
protocols, and the effective use of protective equipment.
3. Identify Diagnostic and Interventional Procedures and to establish DRLs:
• Conduct a comprehensive review to identify specific diagnostic and interventional radiology and nuclear
medicine procedures to update and extend the DRLs established in the PiDRL project.
• Collaborate with relevant stakeholders to develop and implement European Diagnostic Reference
Levels for selected paediatric imaging procedures, ensuring they reflect current best practices and
technological advancements.
4. Promote Effective Use of Paediatric DRLs:
• Enhance awareness and application of paediatric reference levels in clinical practice to ensure they are
effectively utilized for optimizing radiation protection in paediatric imaging.
These objectives aim to create a structured approach to improving paediatric radiation protection and ensure the
quality and safety of young patients undergoing imaging procedures. Moreover, follow-up of patients to undergo
repeated imaging procedures will be enhanced.
Description of the project (overall description including methods, possible/needed partners,
estimated length of a project)
Preliminary project scheduling: Total estimated length of project is 5 years.
1. Development of Practical Optimization Guidelines (Years 1-3):
• This phase focuses on creating comprehensive guidelines for practical optimization methods in
paediatric imaging. The guidelines will be designed to enhance the quality and safety of imaging
practices, ensuring that paediatric patients receive the best care possible.
2. Establishment of Diagnostic Reference Levels (DRLs) for Paediatric Imaging (Years 1-3):
• Conduct a feasibility study to include hospitals with low paediatric patient volumes in the
implementation of DRLs, ensuring that all facilities, regardless of size, can benefit from these
standards.
• Analyze the current status of established paediatric DRLs across Europe to identify gaps and
opportunities for improvement.
• Identify the most pertinent examinations or procedures for DRL implementation based on their
frequency and the associated patient dose, prioritizing those that will have the greatest impact on
safety.
Description of proposed projects WP5, task 5.4
• Gather comprehensive data on paediatric examinations and procedures, including dose indicators,
administered activities, and parameters that assess patient size. This data will inform the establishment
of appropriate DRLs.
• Develop and implement national DRLs, and as appropriate, standardized European paediatric DRLs for
selected imaging procedures, enhancing the consistency of radiation protection across healthcare
settings.
3. Training on Optimization and Use of DRLs (Years 3-5):
• Provide training programs focused on optimization techniques and the effective use of DRLs. This will
include recorded webinars and presentations that cover various dose reduction strategies and
emphasize the importance of minimizing radiation exposure for children. The training aims to empower
healthcare professionals with the knowledge and tools necessary to implement best practices in
paediatric imaging.
Expected outcomes (impact and sustainability)
The aim is to establish comprehensive practical guidelines and create additional training materials for optimizing
X-ray examinations and procedures in paediatric imaging. This will include online publications, video clips, and
other resources aimed at harmonizing radiation protection for paediatric patients and promoting best practices.
We intend to reach all facilities that image children, including those outside paediatric hospitals, ensuring a wide
impact on the quality of care.
By raising awareness among the public and healthcare professionals about best practices in paediatric imaging
and the importance of radiation protection for children, we aim to foster a culture of safety and responsibility.
This increased awareness will lead to more informed decisions and practices in paediatric care.
While to primary focus is in developing national DRLs, data will be used, as appropriate, to develop and
implement updated and new European DRLs to promote harmonization and emphasize the optimization of
radiation protection in paediatric imaging procedures. This initiative will not only enhance safety but also ensure
sustainable practices across healthcare settings, leading to long-term improvements in patient outcomes.
Benefits of performing within a JA
Partnering with various professional groups will enhance the outcomes and acceptance of results. This
collaboration will also reduce duplication of efforts and promote harmonization in the protection of paediatric
patients. Involving regulatory bodies in a joint initiative will facilitate the translation of findings into actionable
regulations and encourage the adoption of DRLs.
The limited number of paediatric studies conducted annually in each country hinders the optimization of
paediatric imaging and highlights the need for additional training. By collectively analysing data, we can
significantly enhance the effectiveness of optimization efforts.
*"diagnostic reference levels" means dose levels in medical radiodiagnostic or interventional radiology practices,
or, in the case of radio-pharmaceuticals, levels of activity, for typical examinations for groups of standard-sized
patients or standard phantoms for broadly defined types of equipment (Definition in the BSSD).
2
SUBJECT/TITLE: Optimisation of radiation protection in interventional radiology
Background (relevant SAMIRA project, other relevant EU projects, scientific or regulatory rationale)
Interventional radiology is evolving and there is an increasing demand for these services. These
procedures are usually associated with relatively high doses to patients and potentially high doses
to staff. The contribution of interventional radiology to population level effective dose is increasing.
Therefore, there is a need to optimize radiation protection of patients, which also has impact on
exposure of workers.
Appropriate medical radiological equipment, practical techniques and ancillary equipment must be
used in medical exposure involving high doses to the patient under Article 61 of BSSD. Under
Article 56, doses due to medical exposure for imaging purposes have to be kept as low as
reasonably achievable consistent with obtaining the required medical information. Establishment,
regular review and use of diagnostic reference levels for interventional procedures, and the
availability of guidance to do this is necessary for optimization of protection. Optimization of patient
exposures also helps reduce occupational exposure in interventional radiology.
The MEDIRAD project (2017-2022) has investigated staff protection in interventional procedures.
EURADOS has carried out multiple projects related to occupational exposure monitoring and
patient skin dose determination. The TRAMEXI project aims to improve the calibration accuracy of
interventional radiology x-ray devices, and the project will end in May 2026. SAMIRA Equipment
study on dose displays and a specified project on criteria for acceptability of devices (from the
grounds of RP 162). This project focuses on implementation of recommendations from these
projects.
Objectives
1. Up-to-date information on radiation protection in interventional radiology in Europe.
2. Promoting good practices in optimization of occupational exposure.
3. Training personnel in interventional radiology and cardiology with a multi-professional
perspective.
4. Gathering information how patients that have received high dose during an interventional
procedure are monitored after the procedure and promoting good practices.
Description of the project (overall description including methods, possible/needed partners,
estimated length of a project)
The overall duration of the project would be 5 years. The description of the project would be as
follows:
1) Evaluation of the status of protection in interventional radiology (including cardiology) by
surveying and conducting inspections/audits. The evaluations can be conducted by
authorities or professionals/auditors, as most convenient for the country. Years 1-2.
2) Emphasizing optimization of radiation protection in interventional radiology with practical
guidance by multidisciplinary group of experts in interventional radiology (including
cardiology) and dissemination of good practices in European countries. Years 3-4.
3) Developing and conducting continuous training for radiologists and other physicians
conducting interventional procedures, radiographers, and technologists on best practices
including the information on radiation exposure risks, safety protocols, and the use of
protective equipment. Years 4-5.
4) Enhancing the effective use of reference levels in interventional radiology. Years 4-5.
Expected outcomes (impact and sustainability)
The primary aim is the improved quality and safety of patients and staff, when best practices are
adopted and implemented in daily practice throughout Europe. The aim is also to produce practical
Description of proposed projects WP5, task 5.4
guidance and training material for optimization of radiation protection in interventional radiology.
These guidelines could be used also as standards for clinical auditing.
Benefits of performing within a JA
The project allows for the gathering of best practices all over the Europe from professionals and
authorities. Work is conducted in co-operation between authorities, professional societies and
hospitals. Moreover, a joint action allows for a multi-professional approach that combines both
clinical professionals and authorities and other parties such as professional organizations and
auditors.
2
SUBJECT/TITLE: Optimisation in image guided radiotherapy (IGRT)
Background (relevant SAMIRA project, other relevant EU projects, scientific or regulatory rationale)
As the precision in radiotherapy treatment is increasing and treatment becomes steadily more personalised,
the amount of radiological imaging used during the treatment course has also increased. To reduce the dose
contribution to the patient outside the target volumes, and especially to organs at risk, it is important that
protocols and imaging regimes are optimised, in line with requirements in the Council Directive
2013/59/Euratom (BSSD) Article 56. It is, nevertheless, important to stress that a sufficient image quality, which
allows identification of key anatomical structures for positioning verification prior to treatment, should not be
compromised. The project will take other work related to IGRT into account, like iViolin, European Radiation
Dosimetry Group (EURADOS) WG 12, Task group 2.2, European Society for Radiotherapy and Oncology
(ESTRO), and ICRP Task group 116.
Objectives
1. Identify typical image guidance protocols for different anatomical regions
2. Identify dose reduction strategies which also ensure adequate image quality
3. Investigate the possibilities to report dose indicators for every individual exposure
4. Identify good examples of optimisation work done in IGRT, including quality assurance procedures
5. Develop guidelines for optimisation of IGRT
6. A feasibility study to explore the possibility to establish an optimisation concept, similar to diagnostic
reference levels (DRLs), also for imaging in radiotherapy
Description of the project (overall description including methods, possible/needed partners,
estimated length of a project)
The main aim of this project is to promote optimisation of imaging protocols and routines associated with
image-guided radiotherapy (IGRT) in order to reduce dose contributions from patient imaging, while
maintaining sufficient quality to ensure correct treatment delivery.
First, a systematic literature review will provide an overview of recommended IGRT protocols for different
anatomical regions and the typical imaging regimes associated with these. Dose reduction strategies that
maintain the image quality required for precise treatment delivery will then be identified, in addition to
investigate what image quality criteria to use. In addition, the project will explore the potential for manufacturers
to report dose indicators for kV-CBCT acquisitions, as it is done for CT scanners, in accordance with BSSD
requirements, allowing dose monitoring of each individual exposure. Good examples of work done by different
clinics in the field of IGRT optimisation will be explored. This part of the project will also try to identify barriers
and challenges that limit the possibilities of IGRT optimisation. Guidelines on how to work with IGRT
optimisation in the clinic will be defined. Diagnostic reference levels (DRLs) is an important tool for optimisation
in diagnostic imaging. Due to the increased use of imaging in radiotherapy, there has been suggestions in the
radiation protection community, to implement this concept as an optimisation tool also for imaging in
radiotherapy. This project will do a feasibility study, where it will be investigated whether this concept (or
similar) is transferrable to radiotherapy imaging as a tool in the optimisation process of imaging protocols.
In addition to the radiation protection authorities, this project needs involvement of clinical personnel and
professional societies. The manufacturers are also important stakeholders since they are the premise suppliers
for the possibilities of the equipment. To be able to get the full overview and sufficient attention to the actual
contribution of the dose from imaging to the patient, a long-term goal is to raise awareness of the
manufacturers to include imaging dose into the treatment planning systems.
Expected outcomes (impact and sustainability)
The project will address the issues related to the increasing use of image guidance during the radiation
treatment course. While these images are critical for the precise delivery of the treatment dose to the patient,
they also contribute significantly to the dose outside the target volumes. Previous work has shown that
optimisation of imaging protocols and imaging regimes in IGRT has been done to a limited extent, with clinics
very often using the standard protocols from the manufacturers. An important outcome of this project will be to
Description of proposed projects WP5, task 5.4
provide access to clinics of guidelines on how to perform IGRT optimization. Examples of good optimisation
projects from hospitals will be included to inspire other to carry out similar projects. The main goal of the
optimisation work will be to reduce the imaging dose to the patient, without compromising the accuracy in the
verification of patient anatomy prior to treatment. Such a project will promote the necessity of performing dose
optimisation also in the field of imaging in radiotherapy as well as the importance to minimize the dose to
healthy tissue and thereby reducing the risk of late effects due to the radiation outside the treatment volume.
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Collaboration through a JA will facilitate a joint and harmonised initiative, raising awareness to the dose
contributions resulting from patient verification images. Good examples of optimisation work can be collected
and shared among all the European countries and hospitals. This can provide valuable input to other hospitals,
increasing the level of requirement implementation regarding dose optimisation. By having the support of a JA,
a stronger influence on the manufacturers can be achieved, in order to work towards the same goal: lower
dose contribution from IGRT ensuring precise treatment.
2
SUBJECT/TITLE: Diagnostic reference levels in NM, CT, IR and radiography procedures of adult
patients
Background (relevant SAMIRA project, other relevant EU projects, scientific or regulatory rationale)
Diagnostic reference level (DRL) in medical imaging was introduced as an optimisation tool in the
medical exposure of patients for diagnostic and interventional procedures by ICRP. It is used to
indicate if, in routine conditions, the dose to the patient or the radiopharmaceuticals activity
administered for some medical imaging procedure is unusually high or unusually low for that
procedure. EU BSSD, Art 56(2) require the establishment, regular review and use of diagnostic
reference levels for radiodiagnostic examinations, having regard to the recommended European
diagnostic reference levels (EDRLs) where available, and where appropriate, for interventional
radiology procedures.
The EUCLID project (RP195) made a great first step in setting a list of 10 clinical indications for CT
and a list of four procedures in interventional radiology (IR) for which DRLs are considered as
needed. EDRLs were established based on survey in 19 hospitals. It is also stated that in IR, the
definition and use of complexity of the procedure looked to be challenging, and there is a need to
cover a wider spectrum of clinical indications. For radiography, the impact of digital devices was not
reflected because the EUCLID report was only based on the literature review and on previous
studies such as EU project Dose Datamed. The EUCLID workshop also clearly showed the need to
move ahead towards the development of DRLs in the fields of cardiac procedures and nuclear
medicine, where the lack of DRLs, as well as absence of the use of those that have been
established, became evident. Additionally, Working Group on DRLs of SGQS recommend that DRLs
for nuclear medicine should be calculated using weight-based administered activities for adult
patients. Nuclear medicine DRLs should be based on quality assured measured administrative
activity to patients and not on nominal values. The provision for hybrid imaging and the CT
component for the different medical purposes (attenuation correction, localisation and direct
diagnosis respectively) should be incorporated into nuclear medicine DRLs.
Rapid evolvement of equipment and methods that allows emerging new procedures and change of
radiation dose due to new developments, seeks for the establishment of up-to-date DRLs
repeatedly. Nevertheless, differences in equipment and practice between countries, but also
between different levels of hospitals, limit the relevance of EDRLs, so data analysis should
encompass these differences and possible solutions including use of regional, national, or local
DRLs in case of converging practices.
Additionally, Working Group on Diagnostic Reference Levels of SGSQ highlights that Member
States, authorities, and healthcare institutions differ in the level of implementation of DRLs and face
differing challenges in establishing or developing an effective infrastructure to enable the
establishment, use and review of DRLs.
Objectives
1. To review the status of DRLs and advances in concept of DRLs in NM, CT, IR and
radiography (including mammography and digital breast tomosynthesis) procedures with
special emphasis on DRLs based on clinical indication in CT, use of complexity of the IR
procedure and use of weight based administered activities in NM procedures in scientific
literature
2. To decide which examinations in NM, CT, IR and radiography should have DRLs
3. To establish DRLs in CT based on clinical indication through a European survey
4. To establish DRLs in IR procedures through a European survey, considering possibility of
use of complexity of the IR procedure
5. To establish DRLs in radiography procedures through a European survey
6. To establish DRLs in diagnostic NM procedures through a European survey considering
possibility of use weight based administered activity
7. To give guidelines for better integration of established DRLs into clinical practice
Description of proposed projects WP5, task 5.4
8. To train all relevant stakeholders in establishment, use and review of DRLs (to enable better
understanding between relevant stakeholders that should result in better implementation of
DRL process)
Description of the project (overall description including methods, possible/needed partners,
estimated length of a project)
Project should last 5 years. Relevant stakeholders for project implementation are regulatory bodies
and relevant professional societies. These stakeholders can participate in part of the project (some
modality can be omitted). Project should also include large number of hospitals to assure
representativeness for data collection.
1. Review of existing NDRLs (set in regulations) in NM, CT, IR and radiography procedures
(1st year)
9. Review on DRLs and advances in DRL concept after the RP195 of DRLs in NM, CT, IR and
radiography procedures with special emphasis on DRLs based on clinical indication in CT,
use of complexity of the IR procedure and use of weight based administered activities in
NM procedures in scientific literature (1st year)
2. Determining the list of diagnostic NM, CT, IR and radiography procedures that should have
DRLs based on 1 and 2 (1st year)
3. Creating the representative network of hospitals to collect the data considering possible
differences between countries, but also between different levels of hospitals (1st year)
4. Collecting the data for establishment of NDRLs (2nd year)
5. Analysis of the data needed for NDRL establishment (including possible differences in
equipment between countries and between different levels of hospitals, use of regional,
national and local DRLs, use of dose management systems, how image quality (IQ) is
included and all other relevant data). Analyze how different types of data can be handled in
a quality-assured systematic and rational manner with e.g. DMS systems. All data needed
to establish DRL and use DRL should be included. Investigate how IQ and equipment
features can be included in the system of DRL. (1st to 4th year)
6. Establishment of national and, where possible, regional or European DRLs considering
differences found in the previous point (3rd year)
7. Produce guidelines or better integration of established DRLs into clinical practice
considering analysis from point 5 of this description (2nd, 3rd and 4th year)
8. Produce training materials for establishing or developing an effective infrastructure to
enable the establishment, use and review of DRLs considering analysis from point 5 of this
description (2nd, 3rd and 4th year)
9. Produce materials to promote DRLs as a tool for optimisation imaging and guidelines
produced in point 9 (3rd and 4th year)
10. Organize joint trainings in establishment, use and review of DRLs for all relevant
stakeholders (to enable better understanding between relevant stakeholders that should
result in better implementation of DRL process in MSs) (3rd, 4th and 5th year)
Expected outcomes (impact and sustainability)
The expected outcome of this project is update of list of diagnostic and interventional procedures
that needs national DRLs in NM, IR, CT and radiography. Due to rapid evolvement of medical
imaging equipment and methods, establishment and use of DRLs is cyclical process that needs
constant updates. Besides the national DRL values, the analysis of all other relevant data that could
influence establishment, use and review of DRLs can point to the direction of improvement of DRL
concept. E.g., the concept of EDRL as regional DRL is of limited value because of possibly large
differences in radiological equipment and practice between regions, different levels of hospitals, etc.
This project should analyse these differences and give guidelines that will help in harmonizing the
use of DRL process in the EU MSs. A practical guidance and training material for establishment,
use and review of DRLs will be produced for all relevant stakeholders to improve implementation of
project results. This will strengthen radiation protection of patients undergoing these procedures
through improved optimisation of procedures.
Benefits of performing within a JA
A joint action will provide a platform for all relevant stakeholders in medical imaging to cooperate in
advancing the optimisation process in NM, IR, CT and radiography procedures. Joint action will
increase level of understanding between stakeholders increasing level of implementation of the
2
project results. This will result with guidelines on DRLs establishment and utilization that should give
raise to harmonization of DRL use in optimization of radiological practices. The involvement of
regulatory bodies in a joint action will facilitate translation of findings in regulations and
harmonization through all EU MSs.
3
SUBJECT/TITLE: Radiation protection during pregnancy related to medical exposure
Background (relevant SAMIRA project, other relevant EU projects, scientific or regulatory rationale)
Pregnant patients are undergoing radiodiagnostic and therapeutic radiological procedures placing
the unborn child at an increased risk due to the use of ionising radiation. EU BSSD requires that
when the pregnant patient undergoes medical exposure, special attention should be given to the
justification and optimization of the procedure, considering both, the expectant individual and the
unborn child.
The ICRP84 and EC100 guidelines on pregnancy and medical radiation are more than 20 years old
and, in some parts, obsolete. To optimize radiation protection in medical applications within this
highly sensitive group of patients, it is of great importance to include advanced technologies and
methods to generate scientifically based findings for guidelines and recommendations. E.g., recent
work conducted within the EURADOS in the field of fetal dosimetry in patients undergoing
radiotherapy (RT) shows that new technologies, such as proton therapy, enable a safe and optimal
treatment during pregnancy with clear benefits for both the mother and the child. European
PIANOFORTE SONORA research project focuses on improving the accuracy of fetal doses
estimation in diagnostic and interventional radiology and RT to optimize process. Nevertheless, it
does not include fetal dosimetry in nuclear medicine procedures. EURADOS research on
management of pregnant patients showed that national or hospital guidelines on the management
of pregnant patients undergoing diagnostic and interventional radiology procedures are used in
clinics. However, it has been sown that the guidelines differ considerably.
It is necessary to update the information that were in EC RP100 guidelines on radiation protection
during pregnancy in medicine to help in harmonizing practices all over Europe to reduce the harmful
effect of ionizing radiation due to occupational and medical exposure.
Objectives
1. To update information in existing European guidelines on radiation protection during
pregnancy in medicine related to medical exposure for all relevant stakeholders. It should
also include examples of best practices, the information on radiation exposure risks, safety
protocols, the use of protective equipment and risk/benefit communication to the pregnant
or potentially pregnant patients and workers
2. To develop training materials on radiation protection during pregnancy in medicine related
to medical exposure for all relevant stakeholders. It should also include examples of best
practices, the information on radiation exposure risks, safety protocols, the use of protective
equipment and risk/benefit communication to the pregnant or potentially pregnant patients
3. To train all relevant stakeholders on use of guidelines on radiation protection during
pregnancy in medicine related to medical exposure (to enable better understanding
between relevant stakeholders that should result in better implementation guidelines)
4. To initiate awareness campaign to decrease the fear due to lack of knowledge for all
relevant stakeholders
Description of the project (overall description including methods, possible/needed partners,
estimated length of a project)
Project should last 4 years. Relevant stakeholders are relevant professional societies (radiologists,
radiotherapists, nuclear medicine specialists, gynaecologists, medical physicists, radiation
technologists), health authority, radiation protection authority, patients, referral doctors, universities.
1. Review on the status of radiation protection during pregnancy in medicine due to medical
exposure using regulations, guidelines and scientific literature review (optional is to use
surveys or interviews among all relevant stakeholders if some data are missing or need to
be clarified) (1st year)
Description of proposed projects WP5, task 5.4
2. Based on review, organize workshops that include different groups of relevant stakeholders
to compare practices, identify problems, gaps, solutions and harmonize the approach (2nd
year)
3. Produce document on update information given in European guidelines for radiation
protection during pregnancy in medicine due to medical exposure (2nd, 3rd year)
4. Produce training materials for radiation protection during pregnancy in medicine due to
medical exposure (3rd, 4th year)
5. Organize joint trainings in radiation protection during pregnancy in medicine due to medical
exposure for all relevant stakeholders (to enable better understanding between relevant
stakeholders that should result in better implementation guidelines in MSs) (3rd, 4th year)
6. Initiate awareness campaign to decrease the fear due to lack of knowledge for all relevant
stakeholders using different means for dissemination of project results. This should include
awareness of universities and health professional schools for the importance of including
information on radiation and pregnancy in undergraduate curricula.
Expected outcomes (impact and sustainability)
The project will result in an update of information given in European guidelines on radiation
protection during pregnancy in medicine due to medical exposure. This will strengthen the radiation
protection within this highly sensitive group of patients. Fetal dose and associated risk data will be
considered and debated between all stakeholders to increase the quality of existing guidelines and
to harmonize them in EU MSs. A training material and awareness campaign in radiation protection
during pregnancy in medicine due to medical exposure for all relevant stakeholders will be
produced to improve implementation of project results.
Benefits of performing within a JA
A joint action will provide a platform for all relevant stakeholders in use of radiation in medical
applications to cooperate in updating information on radiation protection during pregnancy in
medicine to enable harmonizing guidelines across EU MSs. Joint action will increase level of
understanding between stakeholders increasing level of implementation of the project results. The
involvement of regulatory bodies in a joint action will facilitate harmonization of practice and
translation of findings in regulations.
2
SUBJECT/TITLE: Strengthening the implementation of incident learning systems
Background (relevant SAMIRA project, other relevant EU projects, scientific or regulatory rationale)
The European project MARLIN (Medical Application Reporting of Incidents Learning and Improvement
Network) focuses on enhancing the safety of medical radiological practices, by establishing a robust incident
reporting and learning system. MARLIN advocates a structured framework for reporting, recording, analysis,
learning and dissemination, feedback, redesign and audit. These elements are already partially available at
platforms like SAFRON (IAEA) or ROSEIS (ESTRO). It aligns with the Council Directive 2013/59/Euratom
(BSSD), which mandates MS to ensure that healthcare organizations implement systems for reporting
radiation incidents and share lessons learned to improve safety. It requires that significant incidents are
reported to national authorities and that appropriate measures are taken to address deficiencies, ultimately
promoting a safer environment for both patients and healthcare workers. Incident learning systems in the
clinical setting can be considered a cyclical process aimed at continual strengthening of safety through a
promotion of a culture of active learning and continuous quality improvement.
Objectives
1. Enhancing Incident Learning Systems (ILS) in radiological practices
2. Education and Training on Safety Culture to promote learning from incidents and continuous quality
improvement.
Description of the project (overall description including methods, possible/needed partners,
estimated length of a project)
This project aims to create and strengthen national infrastructures and processes for reporting radiation related
incidents across the EU, in line with MARLIN recommendations, while also fostering a learning culture where
lessons from incidents can be shared and applied to improve patient safety in radiological practices. The
project will build on existing ILS systems, emphasizing the continuous feedback loop where incident data leads
to learning, which in turn drives actionable improvements in patient safety. Another core objective would be to
establish comprehensive education and training programs for students and healthcare professionals
addressing radiation protection standards, proactive safety measures and incident response skills. This would
include both creating adequate curricula for graduate programs and continuous professional development
programs, ensuring that healthcare workers are equipped with the necessary skills to minimize radiation risks
and respond effectively to any incidents.
Methods:
• Organize workshops, webinars, and site visits for countries with developing systems, allowing them to
learn directly from countries with robust incident reporting and learning systems.
• Provide flexible templates and guidelines that encourage not just reporting but in-depth analysis and
sharing of lessons learned from radiation incidents. Countries can adopt or adapt these tools based
on their technical capacities and existing healthcare practices.
• Provide guidance on analysing and investigating events and performing proactive risk assessment
and multiple safety checks along the organisational processes.
• Create detailed case studies and toolkits based on the experiences of countries with mature systems.
• Work with national medical and educational institutions to create training curricula that reflect local
regulatory requirements and practices related to incident learning systems
Partners: IAEA, National health and radiation protection competent authorities, scientific and professional
societies (ESR, EANM, ESTRO, EFRS), medical physicists and radiography/radiation therapy associations,
hospitals and universities.
Estimated length: 5 years, by focusing on local and national practices and cross-country collaboration, the
proposed methods will help each country develop effective and tailored incident reporting and learning
systems while benefiting from existing good practices across Europe.
Expected outcomes (impact and sustainability)
Achievement of higher levels of compliance with BSSD. As national systems evolve, they will not only capture
and report incidents but also ensure that these incidents serve as critical learning opportunities, helping
Description of proposed projects WP5, task 5.4
healthcare systems to become more resilient. By embedding learning into the fabric of incident reporting,
countries will be better equipped to align with EU radiation safety goals while protecting public health.
Benefits of performing within a JA
A JA provides a structured framework not only to promote the alignment of national systems while respecting
each country’s specific needs, but also promoting cross-border learning and the sharing of best practices This
collaboration will help ensure that incident learning leads to actionable insights that are implemented EU-wide,
building a foundation for long-term learning networks and enhancing radiation safety beyond the project's
lifetime
2
SUBJECT/TITLE: Effective implementation of clinical audits
Background (relevant SAMIRA project, other relevant EU projects, scientific or regulatory rationale)
The Commission Recommendation 2024/1112/Euratom on clinical audits of medical radiological practices,
adopted on April 18, 2024, builds on the framework established by Council Directive 2013/59/Euratom (BSSD)
and results from collaborative efforts among key European stakeholders, including the SAMIRA Steering
Group, HERCA, and the QuADRANT project. It promotes further measures for enhancing the quality and
safety of radiological practices across Europe and outlines the implementation of robust clinical audit systems
in radiology, radiotherapy, and nuclear medicine, reinforcing the need for continuous assessment and
improvement in these fields.
Objectives
1. Establishment of clinical audits networks and national infrastructure for effective implementation of
clinical audits, including setting up national training programmes for auditors and, inspectors
2. Establishment of a European platform to share information on clinical audits, such as clinical audit
guidelines, standards for good medical radiological procedures, audit outcomes and other reference
documents, making full use of digital technology
3. Enable and support for the successful implementation of clinical audit by means of cross border
collaborations on pilot audits
Description of the project (overall description including methods, possible/needed partners,
estimated length of a project)
Description: This project aims to establish or expand national and regional networks of clinical audits in
radiology, radiotherapy, and nuclear medicine across Europe. The focus is on standardizing audit procedures,
training of healthcare professionals to become auditors (including setting up harmonized training programmes),
and promoting that countries develop clinical audit systems/programs in compliance with the BSSD and the
European Commission Recommendation 2024/1112/Euratom. A second aim is to enhance cross-border
collaboration among MS. It will focus on creating a framework for the exchange of safety protocols, compare
and benchmark audit findings at national and, as far as possible, at Community level
Methods:
• Develop a European discussion forum to help creating national framework and infrastructure for
clinical audits, tailored to radiology, radiotherapy, and nuclear medicine. Develop guidance taking into
account gaps and best practices identified from the QuADRANT project (2 years)
• Review, design and implementation of specialized training programs for auditors and healthcare
professionals, including physicians, medical physicists, and radiographers. Raise awareness of
universities and health professional schools for the importance of including clinical audit topics in
undergraduate curricula. Provide guidance on how to set up efficient training programs (2 years).
• Conduct pilot audits in selected countries to refine methodologies, identify key topics to be audited,
compare and benchmark findings (for instance, percentage of compliance in particular areas), and
identify areas for improvement before expanding the methodologies nationally or regionally (1 year).
Partners: National health and radiation protection competent authorities, scientific and professional societies,
hospitals and universities
Estimated length: 5 years, allowing for the initial setup, pilot phases, and full implementation across
participating countries
Expected outcomes (impact and sustainability)
Achievement of higher levels of effectiveness and efficiency concerning clinical auditing. Establishing national
and regional clinical audit frameworks will create a self-sustaining system for continuous quality improvement.
National frameworks should include regular assessment of the implementation of clinical audits by the
competent inspection authorities, which also will contribute to the quality cycle. With ongoing training and
standardized audit procedures, these networks will remain operational and adaptive, ensuring that healthcare
institutions regularly update and refine their radiological practices based on audit feedback and analysis.
Cross-border collaboration will enable continuous knowledge exchange, making it easier for countries to share
best practices, innovations, and policy developments. This sustainability will be reinforced by shared audit
tools, training programs, and joint policy recommendations.
Description of proposed projects WP5, task 5.4
Benefits of performing within a JA
A JA facilitates the pooling of knowledge, skills, and expertise from different countries. MS can leverage each
other's strengths, making it easier to address complex challenges like clinical audit methodologies, key topics
to be audited, audit training programs. A JA enables MS to develop and implement standardized benchmarks
for clinical audits. This promotes uniformity in safety protocols, ensuring that all EU citizens benefit from the
same high level of care, regardless of location. A JA provides a platform for the rapid dissemination and
adoption of best practices, allowing countries to share audit tools, and helping to develop national audit
structures including all types of healthcare professionals.
2
SUBJECT/TITLE: Revisiting European clinical image quality criteria for x-ray imaging supporting
clinical optimisation
Background
The optimisation of radiation protection in medical imaging requires that radiological procedures provide
diagnostic information of sufficient quality. To ensure this, it is essential to assess image quality using
established imaging quality criteria as part of the optimization process. This approach is particularly relevant in
contexts such as Diagnostic Reference Levels (DRLs).
The European Commission developed a series of guidelines defining clinical quality criteria for X-ray imaging,
addressing both computed tomography and diagnostic radiography for adults and children (ref). These
guidelines emerged from a collaborative European initiative involving professionals and regulatory bodies
across the continent. Although these guidelines are now outdated due to advancements in imaging technology
and changes in radiation dose standards, they established a critical foundation in specifying image quality
criteria. Specifically, these criteria focused on the visualisation of anatomical structures and accurate
reproduction of key diagnostic features within images. The guidelines intended for these criteria to be used in
clinical image evaluations. They have been adopted in some research projects, occasionally with minor
modifications. This evaluation process relies on subjective assessments made by human observers.
The digital nature of medical imaging facilitates the analysis of large volumes of data quickly and efficiently,
with potential support from advanced technologies, including artificial intelligence (ref). This project aims to
build upon prior work and the established European image quality criteria investigating the usefulness of prior
methods developed, e.g.in the iViolin project (ref) which advanced the evaluation of physical image quality
parameters in clinical images.
Objectives
1. Evaluate the European clinical image criteria and other image criteria used in clinical studies.
2. Re-establish European image criteria for key examinations and technology.
3. Explore the possibility of including objective European image criteria that can be assessed using automated
systems based on the established clinical image criteria.
Description of the project
The aim of this project is to update and expand imaging criteria for critical X-ray examinations to support
clinical assessments of image quality. The project will begin with an in-depth review of current practices in the
use of image criteria, resulting in a report on their current application and evaluation methodologies (Year 1).
The subsequent phase will involve selecting specific X-ray examinations, such as lung cancer screening, and
revising or developing tailored imaging criteria for these applications. This phase will include a pilot study to
validate the criteria, using clinical images sourced from at least three countries and using common evaluation
method (Years 2–3). In parallel, the project will explore objective assessment methods through digital image
evaluations, leveraging recent advancements. For instance, this approach has been applied in chest imaging,
where factors such as lung inclusion at image boundaries, patient alignment, and inspiration depth were
assessed automatically (ref). (Years 1–4). Throughout the project, a range of outreach activities will be
conducted, engaging stakeholder platforms and presenting findings at conferences.
Expected outcomes (impact and sustainability)
A set of European imaging criteria, developed through collaboration across clinical and regulatory levels, will
be made available for clinical application. Both subjective and objective assessment methods will be included,
ensuring relevance and adaptability for different healthcare settings both now and in the future. The outcome
will provide defined and widely accepted image quality standards that support the optimisation process in
medical imaging. These imaging criteria will serve as key quality indicators for medical imaging, forming an
important element in clinical quality assurance. Additionally, they will facilitate compliance with broader
requirements, such as clinical audits, and support in the establishment and application of Diagnostic Reference
Levels (DRLs).
Benefits of performing within a JA
A JA will facilitate an efficient platform for professionals together with competent authorities to work towards an
efficient optimisation process addressing a key item for quality and safety in medical imaging – clinical image
quality. The involvement of competent authorities will also facilitate the transposing of findings directly into
national guidelines. The involvement of European professional societies will facilitate acceptance among
clinicians.
Description of proposed projects WP5, task 5.4
References:
European guidelines on quality criteria for computed tomography (2000)
European guidelines on quality criteria for diagnostic radiographic images (1996)
European guidelines on quality criteria for diagnostic radiographic images in paediatrics (1996)
Nousiainen K. et al. Automating chest radiograph imaging quality control. Physica Medica 83 (2021)
138–145
Jorg T. et al. Implementing verifiable oncological imaging by quality assurance and optimization (i-Violin),
Radiologie (published on-line 30 October 2024) https://doi.org/10.1007/s00117-024-01389-8
2
Saatja: "Reini Knopper" <
[email protected]>
Teema: Start-up of the SAMIRA Joint Action - April 29th and 30th in Zagreb, Croatia
Kuupäev: 2025-03-12 10:40
Tähelepanu! Tegemist on välisvõrgust saabunud kirjaga.
Tundmatu saatja korral palume linke ja faile mitte avada.
Dear Sir/Madam,
The RIVM is coordinating the European pre Joint Action
<https://www.rivm.nl/en/international-projects/samira-prisma> SAMIRA-PrISMA.
This partnership grew out of the SAMIRA Action Plan and is committed to
ensuring the quality and safety of medical applications of ionising
radiation. You can read more about this project via the link (
<https://energy.ec.europa.eu/topics/nuclear-energy/radiological-and-nuclear-technology-health/samira-action-plan_en>
SAMIRA Action Plan - European Commission).
The aim of the SAMIRA-PrISMA project is to work with a consortium to make a
proposal for a future European partnership that will run from 2026. In this
partnership, various projects in the field of quality and safety at national
and European level will be (further) developed. These include, for example,
topics such as Dose Reference Levels (DRLs), justification of CT procedures
or strengthening the implementation of incident learning systems. Input from
(inter)national stakeholders is essential for the design and content of the
future cooperation and your organisation can make a valuable contribution.
We would like to invite you and your organisation to the Start-up of the
SAMIRA Joint Action: ‘Shaping the Future of Ionising Radiation in European
Healthcare’.
The aims of the startup are :
* Facilitating stakeholder engagement in shaping the contents and structure
of the future Joint Action
* Enhancing participants understanding of quality and safety concepts within
the context of the PrISMA project
* Foster collaboration among stakeholders to align objectives and strategies
for the upcoming Joint Action
Topics that come up during the startup:
* Regulatory Framework
* Quality and Safety Related Concepts
* Presentation of outputs from SAMIRA and related projects
* PrISMA Input for the future Joint Action
* Building the future together - Breakout sessions to develop Joint Action
projects
The hybrid start-up will take place on Tuesday 29 April and Wednesday 30
April 2025 in Zagreb. More information and the registration link for the
start-up can be found on the RIVM website:
<https://www.rivm.nl/en/agenda/start-up-of-samira-joint-action-shaping-future-of-ionising-radiation-in-european-healthcare>
Start-up of the SAMIRA Joint Action: Shaping the Future of Ionising
Radiation in European Healthcare | RIVM.
The ‘first announcement’, ‘draft programme’ and ‘Project Proposals by
PrISMA for the future Joint Action’ for this workshop are attached.
If you have any questions, please contact us by email.
Best regards,
Coordinator Team SAMIRA PrISMA
Charlotte Rosenbaum
Leontine Boudewijns
Reini Knopper
..........................................
Domain Environment and Safety | Centre of Safety | Radiation Research for
Knowledge and Policy
Dutch National Institute for Public Health and the Environment
PO Box 1 | 3720 BA Bilthoven
Antonie van Leeuwenhoeklaan 9 | 3721 MA Bilthoven
..........................................
E-mail:
[email protected] <mailto:
[email protected]>
http://www.rivm.nl
..........................................
RIVM Committed to health and sustainability
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START-UP OF THE SAMIRA JOINT ACTION:
SHAPING THE FUTURE OF IONIZING
RADIATION IN EUROPEAN HEALTHCARE
29 - 30 April 2025
Zagreb, Croatia
The Westin Hotel,
Krsnjavoga 1, Zagreb, Croatia
Exclusive room rates for
workshop participants*
Flower square - M . Gašaparović (property of The Zagreb Tourist Board)
AIMS REGISTRATION
Facilitating stakeholder engagement in shaping Deadline: 15 April 2025
the contents and structure of the future Joint No registration fee
Action Use QR code below or this link
Enhancing participants' understanding of
quality and safety concepts within the context
of the PrISMA project
Foster collaboration among stakeholders to
align objectives and strategies for the upcoming
Joint Action
TOPICS ORGANISER: PrISMA Consortium
Regulatory Framework INFO:
[email protected]
Quality and Safety Related Concepts This project has received co-funding
from the European Commission,
Presentation of outputs from SAMIRA and EU4Health Programme 2021-2027, under
related projects grant agreement No. 101162826. Views
and opinions expressed are however
PrISMA Input for the future Joint Action those of the author(s) only and do not
necessarily reflect those of the European
Building the future together - Breakout sessions Union of the Health and Digital Executive Agency (HaDEA).
Neither the European Union nor the granting authority can
to develop Joint Action projects be held responsible for them.
* Each workshop participant is responsible for arranging their own accommodation. Number of rooms is limited.