Investigating the reproducibility of a complex multifocal radiosurgery treatment

M. Niebanck, T. Juang, Joseph R Newton, J. Adamovics, Z. Wang, M. Oldham

Research output: Contribution to journalConference article

Abstract

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 than 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.

Original languageEnglish (US)
Article number012072
JournalJournal of Physics: Conference Series
Volume444
Issue number1
DOIs
StatePublished - 2013
Externally publishedYes
Event7th International Conference on 3D Radiation Dosimetry, IC3DDose 2012 - Sydney, NSW, Australia
Duration: Dec 4 2012Dec 8 2012

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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