Fractionated Stereotactic Radiosurgery for Brain Metastases Using the Novalis Tx (R) System
- Authors
- Lim, Tae Kyoo; Kim, Woo Kyung; Yoo, Chan Jong; Kim, Eun Young; Kim, Myeong Jin; Yee, Gi Taek
- Issue Date
- Jul-2018
- Publisher
- KOREAN NEUROSURGICAL SOC
- Keywords
- Stereotactic radiosurgery; Brain tumor; Radiosurgery; Metastasis
- Citation
- JOURNAL OF KOREAN NEUROSURGICAL SOCIETY, v.61, no.4, pp.525 - 529
- Journal Title
- JOURNAL OF KOREAN NEUROSURGICAL SOCIETY
- Volume
- 61
- Number
- 4
- Start Page
- 525
- End Page
- 529
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/3590
- DOI
- 10.3340/jkns.2018.0002
- ISSN
- 2005-3711
- Abstract
- Objective : To evaluate the efficacy of fractionated stereotactic radiosurgery (FSRS) performed using the Novalis Tx (R) system (BrainLAB AG, Feldkirchen, Germany; Varian Medical Systems, Palo Alto, CA, USA) for brain metastases. Methods : Between March 2013 and July 2016, 23 brain metastases patients were admitted at a single institute. Twenty-nine lesions too large for single session stereotactic radiosurgery or located in the vicinity of eloquent structures were treated by FSRS. Based on the results obtained, we reviewed the efficacy and toxicity of FSRS for the treatment of brain metastases. Results : The most common lesion origin was lung (55%) followed by breast (21%). Median overall survival was 10.0 months (95% confidence interval [CI], 4.9-15.0), and median progression-free survival was 10.0 months (95% CI, 2.1-13.9). Overall survival rates at 1 and 2 years were 58.6% and 36.0%, respectively. Local recurrence and neurological complications affecting morbidity each occurred in two cases. Conclusion : FSRS using the Novalis-Tx (R) system would appear to be an effective, safe noninvasive treatment modality for large and eloquently situated brain metastases. Further investigation is required on a larger number of patients.
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