Description and evaluation of a new volumetric-modulated arc therapy plan complexity metric

This study describes a new plan complexity metric for volumetric-modulated arc therapy (VMAT) and evaluates the relationship of this metric with the VMAT dosimetric accuracy. The new modulation complexity score for VMAT (NMCSv) that is based on the aperture shape and multi-leaf collimator (MLC) leaf travel is described. Its performance is evaluated through correlation and receiver operating characteristic (ROC) analyses with patient-specific gamma passing rates using 2 3-dimensional diode arrays.

Source: Medical Dosimetry - December 19, 2020 Category: Radiology Authors: Guangjun Li, Wei Jiang, Yanlong Li, Qiang Wang, Jianghong Xiao, Renming Zhong, Sen Bai Source Type: research