International Symposium on Standards, Applications and Quality Assurance in Medical Radiation Dosimetry (IDOS 2019)

Scientific Programme

Radiation dosimetry measurement standards for imaging, therapy and radiation protection

• Mutual Recognition Arrangement (MRA) drawn up by the International Committee for Weights and Measures (CIPM), and ionizing radiation comparisons and calibrations.
• Standards for absorbed dose to water, air kerma, activity measurements, ambient and personal dose equivalent
• Basic data for dosimetry, including the new quantities described in International Commission on Radiation Units and Measurements (ICRU) Report 90 of 2017 (Key Data for Ionizing-Radiation Dosimetry: Measurement Standards and Applications)
• New water and graphite calorimeter developments (small fields, protons, and heavier ions)
• Standards for radionuclide activity measurements in quantitative imaging
• Standards for brachytherapy: reference air kerma and absorbed dose to water
• New developments in standards
• New data for kilovoltage X ray diagnostic and therapy dosimetry
• Computational methods in dosimetry

Reference dosimetry and comparisons in external beam radiotherapy

• Status of international dosimetry protocols in radiotherapy dosimetry, e.g., the updating of Absorbed Dose Determination in External Beam Radiotherapy: An International Code of Practice for Dosimetry Based on Standards of Absorbed Dose to Water (Technical Reports Series No. 398, IAEA, Vienna, 2000; hereinafter referred to as “TRS-398”), Dosimetry of Small Static Fields Used in External Beam Radiotherapy (Technical Reports Series No. 483, IAEA, Vienna, 2017)
• New developments in national calibration protocols
• Beam quality (non-standard beams, flattening filter-free beams)
• Perturbation and correction factors
• Updates in kilovoltage X ray therapy

Reference dosimetry and comparisons in brachytherapy

• Dissemination and clinical use of standards
• Status of brachytherapy dosimetry protocols
• New radiation sources for brachytherapy (implantable X ray tubes, mixed radionuclide sources, electronic brachytherapy, etc.)
• Dosimeters for brachytherapy

Reference dosimetry and comparisons in diagnostic radiology

• Status of international dosimetry protocols in dosimetry, e.g., Dosimetry in Diagnostic Radiology: An International Code of Practice (Technical Reports Series No. 457, IAEA, Vienna, 2007; hereinafter referred to as “TRS-457”)
• Calibration of diagnostic radiology detectors (mammography and computed tomography (CT) chambers, air kerma–area product meters (KAP), beam quality measuring devices)

Reference dosimetry and comparisons in nuclear medicine

• Alpha therapy standards
• Carbon-11 for positron emission tomography (PET) dosimetry
• Patient specific dosimetry and PET
• Selective internal radiation therapy travelling standards
• Contamination monitors (calibration and measurement)

Clinical dosimetry in X ray imaging

• Need for an update of the international dosimetry protocol in X ray diagnostic radiology (TRS-457) and recommendations contained in Patient Dosimetry for X Rays Used in Medical Imaging (ICRU Report 74)
• Beam quality measurements
• Hospital calibration of dosimeters (KAP meters and other devices)
• Developments in clinical dosimetry (incl. digital radiology, mammography, CT (incl. cone beam), fluoroscopy, interventional radiology, and dental radiology)
• Dose management and dose optimization (incl. diagnostic reference levels)
• Patient specific dosimetry
• Reducing uncertainty in the use of patient dosimetry protocols
• Mathematical phantoms for dose calculations (incl. patient size corrections)
• Foetal and paediatric dosimetry
• Dose reduction techniques
• Digital Imaging and Communications in Medicine (DICOM)-based dose reporting; quality assurance of dose of imaging devices

Clinical dosimetry in radiotherapy

• Issues in beam commissioning and modelling for dose calculation
• Verification of treatment planning process (algorithms, data input, dose verification, etc.) in external beam and brachytherapy
• Dosimetry for imaging devices used in image-guided radiation therapy
• Dosimetry of special procedures (intra-operative radiation therapy, total body irradiation)
• In-vivo dosimetry
• Patient specific dosimetry
• Out-of-field dosimetry
• Three-dimensional dosimetry
• Dosimetry in the presence of magnetic fields

Clinical dosimetry in nuclear medicine

• Calibrations and procedures for measurements of activity (Quality Assurance for Radioactivity Measurements in Nuclear Medicine (Technical Reports Series No. 454, IAEA, Vienna, 2006))
• Imaging device simulations
• Quantitative imaging (phantoms and procedures)
• Pharmacokinetic models for dosimetry and cellular level dosimetry
• Pre-clinical (translational) dosimetry
• Dosimetry for paediatric studies (mathematical phantoms)
• Patient-specific dosimetry
• Imaging-based dosimetry (PET, single photon emission computed tomography (SPECT))
• Dosimetry for targeted radionuclide therapy (peptides, antibodies, small molecules)
• Dosimetry for new radiopharmaceuticals for use in therapy (including alpha emitters)

Independent dosimetry quality audits

• Dosimetry audits in radiotherapy (national and international dosimetry audit networks, postal and on-site audits in reference and non-reference conditions using simple and semi-anatomical phantoms)
• Credentialing for clinical trials through the use of phantoms
• Comprehensive audits (diagnostic radiology, nuclear medicine, radiotherapy)
• Audits of advanced technologies in radiotherapy
• Dosimetry audits for secondary standards dosimetry laboratories
• Optimization and dosimetry in radiology

Radiation protection dosimetry

• Use of radiation protection quantities (effective and equivalent dose, internal dosimetry)
• Occupational dosimetry for medical workers (incl. pregnant staff)
• Dosimetric characterization of medical workplaces (brachytherapy, PET/CT, interventional radiology, etc.)
• Measurement techniques around pulsed sources
• Personal dosimetry comparisons
• Eye, extremity and skin dosimetry

Dosimetry for proton and light ion beams in radiotherapy

• Implementation of ICRU Report 78 (Prescribing, Recording, and Reporting Proton-Beam Therapy)
• Update of the international dosimetry protocol TRS-398
• Basic data for dosimetry
• Perturbation and correction factors
• Calibration of beam monitors
• Neutron dosimetry

Detector technology and applications in dosimetry

• Features and limitations of modern detectors for reference and relative dosimetry
• Commissioning of detectors
• Challenges and advantages of closed dosimetry systems (“black-box”)
• Type testing of detectors

Other related topics

• Microdosimetry
• Nanodosimetry
• Dosimetry of small animal irradiators
• Collective effective dose and patient risk
• Global medical and occupational exposure estimation
• Quality management of secondary standards dosimetry laboratories