Clinical application of radiophotoluminescent glass dosimeter for dose verification of prostate HDR procedure

Autor: Tien Chi Yeh, David Y.C. Huang, Shih Ming Hsu, Ji Hong Hong, Shung-Shung Sun, Annie Y.H. Tipton, Wei Li Chen, Chien Yi Yeh
Rok vydání: 2008
Předmět:
Zdroj: Medical Physics. 35:5558-5564
ISSN: 0094-2405
DOI: 10.1118/1.3005478
Popis: High dose rate brachytherapy (HDR-BT) is one of the many modalities for prostate cancer treatment. Due to the nature of HDR-BT, in vivo dosimetry is feasible and can be used to verify consistent dose delivery. In order to validate a dose verification system for HDR-BT prostate cancer treatment, a radiophotoluminescent glass dosimeter (RPLGD) was used and the measurements were compared with those from a thermoluminescent dosimeter. The RPLGD shows many advantages in HDR-BT dose measurement, such as repeatability, stability, and small effective size. These advantages make the RPLGD a superior option for use as a dosimeter in HDR-BT. The results described here show that the difference between the measured dose and the treatment planned dose is less than 5%. A Monte Carlo simulation for the dose was performed using Monte Carlo N -particle to investigate position error. This study concludes that the RPLGD is a promising and reliable dosimeter for HDR-BT in vivo dosimetry with clinically acceptable accuracy.
Databáze: OpenAIRE