Joint ICTP-IAEA Workshop on Advanced Dosimetry in Diagnostic and Interventional Radiology

Administration

Description

An ICTP-IAEA meeting

The workshop is intended for medical physicists and radiation metrologists interested in enhancing their knowledge and skills in dosimetry for diagnostic and interventional radiology. It will provide selected participants with a comprehensive and current overview of both theoretical foundations and practical applications of dosimetry in these domains.

International standardization in dosimetry is critical for ensuring the safe and effective optimization of radiation technologies in clinical practice. This is particularly relevant for diagnostic radiology procedures, which account for an increasingly significant share of the total population dose from artificial sources of ionizing radiation.

The reasons for monitoring patient exposure and assessing radiation doses in diagnostic radiology are establishing and maintaining standards of good practice and evaluating potential detriment for justification and risk assessment purposes.

Accurate dosimetry for diagnostic and interventional procedures is essential to maintain balance between image quality and patient exposure. Variations in irradiation conditions, as X ray beam quality and geometry, have led to the development of application-specific dosimetry quantities and methods, making dosimetry in diagnostic radiology highly complex and diverse. Dosimetry methods must ensure adequate accuracy and long-term stability. Proper selection and use of dosimeters, dosimetry traceability, as well as correct interpretation of dosimetry data, require specialized skills and knowledge. This includes understanding radiation quantities and units, dosimetry formalism and uncertainty estimation, and the performance characteristics of various dosimeter types used in diagnostic and interventional radiology both from radiation metrology and clinical dosimetry perspective.

Medical physicists bear primary responsibility for dosimetry in diagnostic radiology and for assessing radiation doses for specific procedures, which involves the use of specialized instrumentation. Radiation metrologists, as professionals working in dosimetry laboratories, are responsible for disseminating radiation dosimetry traceability to the end-users through instrument calibration. Therefore, a comprehensive training in dosimetry is indispensable for medical physicists and radiation metrologists to ensure the required standards of quality and safety in X ray imaging.

Topics

Dosimetry framework, quantities, units and formalism;
Instrumentation for dosimetry in diagnostic radiology, other instruments used in diagnostic radiology;
International Metrology System, Calibrations procedures and role of the SSDL;
Calibration of dosimeters in diagnostic radiology;
Application-specific dosimetry (radiography, fluoroscopy and FGIP, CT, breast imaging, dental);
Patient dose audits, data analysis and use;
Computational dosimetry;
Dosimetry for risk assessment;
Organ dose estimation and risk assessment;
Advances in dosimetry in diagnostic radiology;
Uncertainty of dose measurement and assessment

Experts
J. Andersson, Umea University Hospital, Sweden
O. Noor, King Faisal Specialist Hospital & Research Centre, Saudi Arabia
P. Toroi, STUK - Radiation and Nuclear Safety Authority, Finland

Grants: A limited number of grants are available to support the attendance of selected participants, with priority given to participants from developing countries. There is no registration fee.

Material

Poster Preliminary List of Participants

Joint ICTP-IAEA Workshop on Advanced Dosimetry in Diagnostic and Interventional Radiology | (smr 4245)

Go to day

Monday, 25 May 2026
- 08:45 - 09:30
  - 08:45 Registration Formalities 45'
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REGISTRATION: Upon arrival, Visitors not staying in the ICTP Guest Houses, are kindly requested to complete registration formalities at the Adriatico Guest House (Lower level). The Registration Desk will be open in the morning starting from 8:45.
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- 09:30 - 17:00
  - 09:30 Welcome and Introduction 30'
    
    Speaker: Olivera CIRAJ BJELAC (IAEA, Austria) Marco ESPOSITO (ICTP, Italy)
  - 10:00 Pre-course test 30'
  - 10:30 Coffee Break 30'
  - 11:00 Participants’ presentations (2’ each) 1h30'
  - 12:30 Lunch Break 1h0'
  - 13:30 Participants’ presentations (2’ each) 45'
  - 14:15 IAEA resources in diagnostic radiology dosimetry and medical physics 20'
    
    Speaker: Olivera CIRAJ BJELAC (IAEA, Austria)
  - 14:35 Need for dosimetry in diagnostic radiology. Introduction to the international measurement system for ionizing radiation 25'
    
    Speaker: Paula TOROI (STUK, Radiation and Nuclear Safety Authority, Finland)
  - 15:00 Coffee Break 30'
  - 15:30 X-ray production and radiation qualities 45'
    
    Speaker: Michelangelo BIONDI (USL Toscana Sud-Est, Italy)
  - 16:15 Quantities and units in diagnostic radiology dosimetry 45'
    
    Speaker: Jonas ANDERSSON (Umea University Hospital, Sweden)
Tuesday, 26 May 2026
- 09:00 - 17:00
  - 09:00 Dosimeters, detectors and other instruments in diagnostic radiology: an overview 45'
    
    Speaker: Michelangelo BIONDI (USL Toscana Sud-Est, Italy)
  - 09:45 Introduction to IAEA TRS 457 15'
    
    Speaker: Olivera CIRAJ BJELAC (IAEA, Austria)
  - 10:00 Calibration of diagnostic radiology dosimeters. Reference standards and calibration conditions 30'
    
    Speaker: Paula TOROI (STUK, Radiation and Nuclear Safety Authority, Finland)
  - 10:30 Coffee Break 30'
  - 11:00 Dosimetry for radiography 45'
    
    Speaker: Omar MOHAMED NOOR (King Faisal Specialist Hospital and Research Centre, Saudi Arabia)
  - 11:45 Dosimetry for fluoroscopy and FGIP 45'
    
    Speaker: Jonas ANDERSSON (Umea University Hospital, Sweden)
  - 12:30 Lunch Break 1h0'
  - 13:30 Challenges with dosimetry in diagnostic and interventional radiology, reference dosimetry and dosimetry instrumentation 45'
    
    Speaker: Paula TOROI (STUK, Radiation and Nuclear Safety Authority, Finland)
  - 14:15 Introduction to uncertainty 45'
    
    Speaker: Paula TOROI (STUK, Radiation and Nuclear Safety Authority, Finland)
  - 15:00 Coffee Break 30'
  - 15:30 Practical exercises 1h30'
- 19:00 - 21:00
  - 19:00 Welcome Reception 2h0'
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All Participants are cordially invited to the Welcome Reception
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Wednesday, 27 May 2026
- 09:00 - 17:00
  - 09:00 Dosimetry for CT 45'
    
    Speaker: Michelangelo BIONDI (USL Toscana Sud-Est, Italy)
  - 09:45 CBCT, application QC and dosimetry 45'
    
    Speaker: Jonas ANDERSSON (Umea University Hospital, Sweden)
  - 10:25 Group Photo 5'
  - 10:35 Coffee Break 25'
  - 11:00 Dosimetry for mammography (detectors, protocols, new breast dosimetry model) 45'
    
    Speaker: Paula TOROI (STUK, Radiation and Nuclear Safety Authority, Finland)
  - 11:45 Patient specific dosimetry: measurable quantities, organ doses, assessment methods (e.g. MC) 45'
    
    Speaker: Omar MOHAMED NOOR (King Faisal Specialist Hospital and Research Centre, Saudi Arabia)
  - 12:30 Lunch Break 1h0'
  - 13:30 Practical exercises 1h30'
  - 15:00 Coffee Break 30'
  - 15:30 Practical exercises 1h30'

Thursday, 28 May 2026

09:00 - 17:15

09:00 Patient dose monitoring and dose management: IAEA guidelines 45'

Speaker: Olivera CIRAJ BJELAC (IAEA, Austria)
09:45 Dose Management Systems and their utilization in QC. Extracting dose-related and other relevant information 45'

Speaker: Jonas ANDERSSON (Umea University Hospital, Sweden)
10:30 Coffee Break 30'
11:00 Dosimetry for optimization of clinical protocols 45'

Speaker: Michelangelo BIONDI (USL Toscana Sud-Est, Italy)
11:45 Risk related dosimetry quantities and their assessment and use in diagnostic and interventional radiology 45'

Speaker: Jonas ANDERSSON (Umea University Hospital, Sweden)
12:30 Lunch Break 1h30'

14:00 CCRI webinar: Advances in X-ray imaging dosimetry: calibration of X-ray multimeters 2h0'

Consistent and reliable dosimetry in medical X ray imaging depends on well defined calibration and measurement procedures, making their critical assessment and harmonisation essential to ensure traceable and comparable results across laboratories and clinical practice. Building on earlier CCRI webinars addressing challenges and recent updates in X ray imaging dosimetry, this third webinar focuses on advances in the calibration of X ray multimeters (XMMs) used in medical imaging. The webinar will address calibration approaches for key quantities measured by XMMs beyond air kerma, including tube voltage, irradiation time, and half value layer (HVL). In addition, approaches for validating metrological traceability and providing supporting evidence for these calibration services will be discussed.

1. Education and training of radiation metrologist: Olivera CIRAJ BJELAC, IAEA and Marco ESPOSITO, ICTP
. Introduction of ICTP university of Trieste Master of Advanced Studies in Medical Physics and Radiation Metrology

2. Air kerma and irradiation time: Miloš ŽIVANOVIĆ, VINS, Serbia
. What changes when the calibrated item is XMM instead of an ionization chamber?
· How should we define the irradiation time and how to obtain the reference value for it?

3. Tube voltage: Stefan POJTINGER, PTB, Germany
· How to obtain a reference value for practical peak voltage (PPV)?

4. HVL: Aino TIETÄVÄINEN, STUK, Finland
· How to measure reference HVL value and estimate the uncertainty?

5. Conclusions: Paula TOROI, STUK, Finland
· The future of X-ray imaging dosimetry

The webinar is chaired by Massimo PINTO (ENEA, Italy)

Speaker:

Olivera CIRAJ BJELAC (IAEA, Austria), Paula TOROI (STUK,Radiation and Nuclear Safety Authority, Finland), Michelangelo BIONDI (USL Toscana Sud-Est, Italy), Jonas ANDERSSON (Umea University Hospital, Sweden), Omar MOHAMED NOOR (King Faisal Specialist Hospital and Research Centre, Saudi Arabia)

16:00 Coffee Break 30'
16:30 Group Discussion 45'

Friday, 29 May 2026
- 09:00 - 14:30
  - 09:00 Dosimetry for paediatric radiology. Dosimetry for pregnancy 45'
    
    Speaker: Omar MOHAMED NOOR (King Faisal Specialist Hospital and Research Centre, Saudi Arabia)
  - 09:45 Considerations when procuring dosimetry equipment, selection and maintaining 45'
    
    Speaker: Jonas ANDERSSON (Umea University Hospital, Sweden)
  - 10:30 Coffee Break 30'
  - 11:00 Roundtable discussion: Radiation metrology vs clinical measurements-needs and expectations 1h30'
    
    Speaker: Paula TOROI (STUK,Radiation and Nuclear Safety Authority, Finland) and All Participants
  - 12:30 Lunch Break 1h0'
  - 13:30 Post-course test 30'
  - 14:00 Closing 30'