Journal of medical physics · 2025
Feasibility of Radiophotoluminescent Glass Dosimeter for Measuring Radiation Dose in Kilovoltage Cone-beam Computed Tomography.
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Jittrakool Kantida, Kingkaew Sakda, Chatchumnan Nichakan, Oonsiri Puntiwa, Oonsiri Sornjarod, Vimolnoch Mananchaya
Аннотация
PURPOSE: Cone-beam computed tomography (CBCT) is widely used in imaging-guided radiotherapy for precise treatment planning and patient positioning. However, the ionizing radiation used in CBCT poses inherent risks to patients.
MATERIALS AND METHODS: This study evaluated the feasibility of radiophotoluminescent. glass dosimeter system GD-352M for measuring radiation dose in kilovoltage CBCT (kV-CBCT).
RESULTS: The GD-352M demonstrated good uniformity, linearity, accuracy, reproducibility, and low-energy dependence. Moreover, the FDG-1000 automatic reader system exhibited consistent readout values that were not influenced by the magazine's position. The GD-352M demonstrated good uniformity, linearity, and accuracy, with a combined measurement uncertainty of 4.56%, confirming its suitability for kV-CBCT dosimetry.
CONCLUSION: These findings indicate the suitability of the GD-352M dosimeter for measuring dose range in kV-CBCT and improve patient safety in kV-CBCT dosimetry.
MATERIALS AND METHODS: This study evaluated the feasibility of radiophotoluminescent. glass dosimeter system GD-352M for measuring radiation dose in kilovoltage CBCT (kV-CBCT).
RESULTS: The GD-352M demonstrated good uniformity, linearity, accuracy, reproducibility, and low-energy dependence. Moreover, the FDG-1000 automatic reader system exhibited consistent readout values that were not influenced by the magazine's position. The GD-352M demonstrated good uniformity, linearity, and accuracy, with a combined measurement uncertainty of 4.56%, confirming its suitability for kV-CBCT dosimetry.
CONCLUSION: These findings indicate the suitability of the GD-352M dosimeter for measuring dose range in kV-CBCT and improve patient safety in kV-CBCT dosimetry.