ESTRO 2024 - Abstract Book

S369

Beachytherapy - Physics

ESTRO 2024

Conclusion:

Brachytherapy devices and implants, such as EP, can be 3D printed with radiopaque polymers, and fixing radioactivity in them by designing cylindrical radioactive cavities (CRC) instead of radioactive seeds, allows a collimation effect of the low-energy photons. This phenomenon can be exploited to delineate the contours of target volumes more precisely.

Keywords: radioactive cavities, Monte-Carlo, episcleral

References:

1 Lescot T, Fortin MA, et al, “Tumor Shape-Specific Brachytherapy Implants by 3D-Printing, Precision Radioactivity Painting, and Biomedical Imaging”; Advanced Healthcare Materials (Wiley), 03 August 2023.

2 Chiu-Tsao, Sou-Tung et al. (2012). “Dosimetry of 125I and 103Pd COMS eye plaques for intraocular tumors: Report of Task Group 129 by the AAPM and ABS”. In: Medical physics 39.10, pp. 6161– 6184.