Investigating the reproducibility of a complex multifocal radiosurgery treatment

M Niebanck, T Juang, J Newton, J Adamovics, Z Wang, M Oldham
2013 Journal of Physics, Conference Series  
Stereotactic radiosurgery has become a widely used technique to treat solid tumors and secondary metastases of the brain. Multiple targets can be simultaneously treated with a single isocenter in order to reduce the set-up time to improve patient comfort and workflow. In this study, a 5-arc multifocal RapidArc treatment was delivered to multiple PRESAGE ® dosimeters in order to explore the repeatability of the treatment. The three delivery measurements agreed well with each other, with less
more » ... 3% standard deviation of dose in the target. The deliveries also agreed well with the treatment plan, with gamma passing rates greater than 90% (5% dose-difference, and 2 mm distance-to-agreement criteria). The optical-CT PRESAGE ® system provided a reproducible measurement for treatment verification, provided measurements were made immediately following treatment.
doi:10.1088/1742-6596/444/1/012072 pmid:27081397 pmcid:PMC4828920 fatcat:uzlhxogobfanhbi3md6kextomi