Evaluation of a commercial synthetic computed tomography generation solution for magnetic resonance imaging-only radiotherapy.

ABSTRACT:

Purpose

To evaluate the Siemens solution generating Synthetic computed tomography (sCT) for magnetic resonance imaging (MRI)-only radiotherapy (RT).

Method

A retrospective study was conducted on 47 patients treated with external beam RT for brain or prostate cancer who underwent both MRI and CT for treatment planning. sCT images were generated from MRI using automatic bulk densities segmentation. The geometric accuracy of the sCT was assessed by comparing the Hounsfield Units (HU) difference between sCT and CT for bone structures, soft-tissue, and full body contour. VMAT plans were computed on the CT for treatment preparation and then copied and recalculated with the same monitor units on the sCT using the AcurosXB algorithm. A 1%-1mm gamma analysis was performed and DVH met

SUBMITTER: Gonzalez-Moya A 

PROVIDER: S-EPMC8200507 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature