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Updated: Jul 29, 2025
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
Analysis of fetal dose using Optically Simulated Luminescence Dosimeter and ion chamber in randophantom for various
N Sushma1, Shanmukhappa Kaginelli2, P Sathiyaraj3
1Department of Radiation Physics, Kidwai Memorial Institute of Oncology, Bengaluru, India; Division of Medical Physics, JSS Academy of Higher Education and Research, Mysuru, India.
Abstract:
To analyse the fetal dose in all three trimesters in patients treated for brain tumors during pregnancy, a modified rando phantom representing three different trimesters was used with provisions for insertion of ion-chamber and Optically Simulated Luminescence Dosimeter (OSLD). The measurement regions were chosen at the level of fundus, umbilicus and pubis. Seven different treatment plans with 6FF and 6FFF beam energies were generated. Treating pregnant patients with brain tumors is safe irrespective of planning modalities except 3DCRT plan where the dose is 10.24 cGy.
