Quantitative assessment of helical tomotherapy plans complexity.

ABSTRACT:

Purpose

An unnecessary amount of complexity in radiotherapy plans affects the efficiency of the treatments, increasing the uncertainty of dose deposition and its susceptibility to anatomical changes or setup errors. To date, tools for quantitatively assessing the complexity of tomotherapy plans are still limited. In this study, new metrics were developed to characterize different aspects of helical tomotherapy (HT) plans, and their actual effectiveness was investigated.

Methods

The complexity of 464 HT plans delivered on a Radixact platform was evaluated. A new set of metrics was devised to assess beam geometry, leaf opening time (LOT) variability, and modulation over space and time. Sixty-five complexity metrics were extracted from the dataset using the newly in-house devel

SUBMITTER: Cavinato S 

PROVIDER: S-EPMC9860001 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature