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Dose prescription for stereotactic body radiotherapy: general and organ-specific consensus statement from the DEGRO/DGMP Working Group Stereotactic Radiotherapy and Radiosurgery.
Strahlenther Onkol
September 2024
Department of Radiation Oncology, University Medical Center Schleswig-Holstein, Arnold-Heller-Straße 3, 24105, Kiel, Germany.
Purpose And Objective: To develop expert consensus statements on multiparametric dose prescriptions for stereotactic body radiotherapy (SBRT) aligning with ICRU report 91. These statements serve as a foundational step towards harmonizing current SBRT practices and refining dose prescription and documentation requirements for clinical trial designs.
Materials And Methods: Based on the results of a literature review by the working group, a two-tier Delphi consensus process was conducted among 24 physicians and physics experts from three European countries.
Application of stoichiometric CT number calibration method for dose calculation of tissue heterogeneous volumes in boron neutron capture therapy.
Med Phys
June 2024
Institute for Integrated Radiation and Nuclear Science, Kyoto University, Sennangun, Osaka, Japan.
Background: Monte Carlo simulation code is commonly used for the dose calculation of boron neutron capture therapy. In the past, dose calculation was performed assuming a homogeneous mass density and elemental composition inside the tissue, regardless of the patient's age or sex. Studies have shown that the mass density varies with patient to patient, particularly for those that have undergone surgery or radiotherapy.
View Article and Find Full Text PDFImproving Calculations of Electron Eye-lens Operational Dose Coefficients Using the Monte Carlo Codes PENELOPE and MCNP6.2.
Health Phys
May 2024
Canadian Nuclear Laboratories, Chalk River, Ontario, Canada, K0J 1J0.
After considering epidemiological studies on the induction of cataracts in individuals exposed to radiation, the International Commission on Radiological Protection recommended, in 2012, a reduction in the annual eye-dose limit of occupationally exposed workers. This imposed higher performance demands on existing dosimetry systems and the development of new dosimetry technologies. The operational quantity to be measured is Hp(3), the personal dose equivalent at a depth of 3 mm in an ICRU 4-element tissue cylinder 20 cm in height and 20 cm in diameter.
View Article and Find Full Text PDFInvestigating the impact of new dosimetric quantities recommended by ICRU 95 on the OSLD individual monitoring system at OAP, Thailand.
J Radiol Prot
March 2024
Ionizing Radiation Metrology Section, Regulatory Technical Support Division, Office of Atoms for Peace 16 Vibhavadi Rungsit Rd., Ladyao, Chatuchak, Bangkok 10900, Thailand.
This research investigates the effects of new definitions of operational dosimetric quantities, especially(10) to Hp recommended by ICRU Report 95, on the dosimetry system. This paper focuses on the responses of two dosimeter types, nanoDot® and InLight®, using conversional coefficients from ICRU report 57 and ICRU report 95 conversion coefficients. The dosimeters were irradiated with various beam qualities, and their responses were compared to the acceptant limits provided by the IEC 62387.
View Article and Find Full Text PDFEURADOS project on the impact of the proposed ICRU operational dose quantities.
Radiat Prot Dosimetry
October 2023
Physikalisch-Technische Bundesanstalt, Bundesallee 100, Braunschweig 38116, Germany.
Following the publication of the joint The International Commissions on Radiation Units and Measurements (ICRU) and on Radiological Protection (ICRP) report on new operational quantities for radiation protection, the European Dosimetry Group (EURADOS) have carried out an initial evaluation. The EURADOS report analyses the impact that the new quantities will have on: radiation protection practice; calibration and reference fields; European and national regulation; international standards and, especially, dosemeter and instrument design. The task group included experienced scientists drawn from across the various EURADOS working groups.
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