Planning study: prone versus supine position for stereotactic body radiotherapy in prostate by CyberKnife.

ABSTRACT: This study aimed to clarify the differences in radiotherapy dose characteristics and delivery efficiency between the supine and prone positions in patients with prostate cancer using the CyberKnife. The planning computed tomography (CT) and delineations of the prone position were obtained by rotating the supine CT images with delineations of 180° using image processing software. The optimization parameters for planning target volume (PTV) and organs at risk (OARs) were based on the prone position. The optimization parameters determined for the prone position were applied to the supine position for optimization and dose calculation. The dosimetric characteristics of the PTV and OARs, and delivery efficiency were compared between the two different patient positions. The plans in the prone po

SUBMITTER: Kon M 

PROVIDER: S-EPMC9855311 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature