Abstract
Abstract Both polymer gels and PRESAGE radiochromic plastic dosimeter, in conjunction with optical CT scanning system, have been employed to measure 3-D dose distributions in radiotherapy. The 3-D dose maps obtained from these systems can provide a useful tool for dose verification on complex treatments such as IMRT, radiosurgery, and RapidArc. These complex treatments present high dose gradient regions in the boundaries between the target and the surrounding critical organs. Dose accuracy in these areas can be critical, and may affect the treatment. There is a pressing need for a dosimeter that allows for accurate determination of 3-D dose distribution with high spatial resolution. In this review paper, clinical applications of polymer gels and PRESAGE dosimeter with optical CT scanning are presented. Dosimetric performance is evaluated in terms of their sensitivity calibration, irradiation, optimization of scanning procedures, precision, and accuracy. The results demonstrate that an accurate 3-D dose distribution with high resolution can be implemented.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
