
Investigating the reproducibility of a complex multifocal radiosurgery treatment.
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.
Duke Scholars
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- 51 Physical sciences
- 0299 Other Physical Sciences
- 0204 Condensed Matter Physics
- 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
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Published In
DOI
ISSN
Publication Date
Volume
Location
Related Subject Headings
- 51 Physical sciences
- 0299 Other Physical Sciences
- 0204 Condensed Matter Physics
- 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics