Consideration of optimal isodose surface selection for targetcoverage in micro-multileaf collimator-based stereotactic radiotherapy forlarge cystic brain metastases: comparison of 90 80 and 70isodose surface-based planning

摘要

ObjectiveThis study aims to compare dynamic conformal arc (DCA) plans based on different-percentage isodose surfaces (IDSs), normalised to 100% at the isocentre, for target coverage (TC; dose prescription) in stereotactic radiotherapy for large cystic brain metastases.