Validation of SRS MapCHECK for CyberKnife patient-specific quality assurance: challenges with small cone sizes.

ABSTRACT:

Purpose

The CyberKnife system, designed for stereotactic radiosurgery (SRS) and stereotactic body radiotherapy (SBRT), considers SRS MapCHECK an effective tool for patient-specific QA (PSQA). This work evaluates the performance of SRS MapCHECK in CyberKnife PSQA, identifies potential sources of inaccuracy in PSQA analysis, and recommends accurate and reliable use of this tool for small fields.

Methods

SRS MapCHECK is a promising tool for CyberKnife PSQA due to its compact size and high-resolution 2D detector. It enhances dosimetry accuracy by incorporating correction factors for field size and gantry angle. To validate its effectiveness, PSQAs were performed on CyberKnife plans with various fixed cone sizes for brain SRS cases. Static field dose delivery was tested by rotati

SUBMITTER: Yoo D 

PROVIDER: S-EPMC12823868 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature