Delivered Dose Distribution Estimation for Online-Adaptive Prostate SBRT on the MR-Linac

The MR-Linac (MRL) platform offers the ability to create daily-adapted treatments that reflect daily changes in a patient ’s anatomy. However, MRL treatment fractions can take up to 75 minutes for patient setup, treatment imaging, adaptive re-planning, quality assurance and delivery. Large intra-fraction changes in pelvic organs are well documented, but little is known about the dosimetric effect of these changes in the context of long, adaptive treatment delivery sessions. Herein, we describe an innovative clinical process to estimate the actual delivered dose distribution at the time of MR guided adaptive treatment delivery.

Source: Journal of Medical Imaging and Radiation Sciences - August 31, 2020 Category: Radiology Authors: Jennifer Dang, Vickie Kong, Winnie Li, Jeff D. Winter, Andrew Bayley Tags: “Innovate” Top-Ranked Abstract Source Type: research