Clinical evaluation of the aperture shape controller in volumetric modulated arc therapy: Effects on MLC and jaw motion complexity, plan quality, and deliverability.

ABSTRACT: This study comprehensively evaluated the impact of aperture shape controller (ASC) on volumetric modulated arc therapy (VMAT) clinical treatment planning. A total of 248 VMAT plans for head and neck, prostate, post mastectomy breast, gastric MALT lymphoma, rectum, and Lung SBRT for treatments performed between 2018 and 2023 were retrospectively enrolled. These treatment plans were divided into two groups: before (ASC-OFF group) and after (ASC-ON group) the clinical implementation of ASC. The performance of ASC in terms of plan complexity was evaluated by between group comparisons of the multi-leaf collimator (MLC) modulation complexity score (MCSv) and jaw tracking complexity score (JTCS), plan quality using dosimetric parameters, and plan deliverability. The overall MCSv and JTCS of the A

SUBMITTER: Kamima T 

PROVIDER: S-EPMC12375282 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature