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Updated: Jun 23, 2026

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition
Published on: March 11, 2021
A radionuclide dosimetry toolkit based on material-specific Monte Carlo dose kernels.
George Loudos1, Ioannis Tsougos, Spyros Boukis
1Department of Medical Instruments Technology, Technological Educational Institute of Athens, Greece. gloudos@teiath.gr
This study introduces a user-friendly toolkit for radionuclide therapy dosimetry, improving patient-specific treatment planning. The software offers fast, personalized dose calculations using Monte Carlo methods for enhanced accuracy in radiation therapy.
Area of Science:
- Medical Physics
- Nuclear Medicine
- Radiotherapy
Background:
- Radionuclide therapy quality relies heavily on precise patient-specific treatment planning.
- Accurate dosimetry is crucial for optimizing therapeutic efficacy and minimizing off-target radiation exposure.
Purpose of the Study:
- To develop a user-friendly dosimetry toolkit for improving radionuclide therapy.
- To enable patient-specific planning for enhanced treatment quality.
Main Methods:
- Developed a software toolkit for indicative radionuclide dose calculation using open-source tools.
- Employed Geant4 Application for Tomographic Emission (GATE) to calculate dose kernels.
- Implemented a method for extracting material-specific dose absorption factors from kernel data.
Main Results:
- The toolkit utilizes Monte Carlo-calculated dose kernels for rapid dose calculations.
- Integration with CT or MRI enables creation of accurate, personalized indicative dose maps.
- Demonstrated proof of concept for the dosimetry toolkit.
Conclusions:
- Quantitative 3D dosimetry enhances treatment accuracy and individualization in patient care.
- Standardized data collection and processing with this toolkit improve radiation dose accuracy and compatibility.
- The toolkit facilitates a more individualized approach to radionuclide therapy planning.
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