期刊
HEAD AND NECK-JOURNAL FOR THE SCIENCES AND SPECIALTIES OF THE HEAD AND NECK
卷 38, 期 -, 页码 E1886-E1895出版社
WILEY-BLACKWELL
DOI: 10.1002/hed.24341
关键词
intensity-modulated proton therapy; radiotherapy; chemotherapy; nasopharyngeal carcinoma; dosimetric planning study; clinical outcomes
资金
- NCI NIH HHS [P30 CA016672] Funding Source: Medline
Background. Intensity-modulated proton therapy (IMPT) has the potential to spare dose to organs at risk (OAR) when compared to intensity-modulated radiotherapy (IMRT) while maintaining excellent clinical outcomes. Methods. Ten patients with nasopharyngeal carcinoma (NPC) were identified for whom IMPT was planned; 9 patients also had a comparison photon-based IMRT plan generated. Dosimetric comparison of mean radiation dose to 29 adjacent OAR was performed. Disease control, survival, and toxicity outcomes were collected from the medical records. Results. There were significant differences in mean doses in 15 of the 29 OAR; 13 OAR received lower mean dose with proton-based plans. Median follow-up was 24.5 months (range, 19-32 months). Two-year locoregional control was 100% and the 2-year overall survival was 88.9%. Conclusion. We observed dosimetric advantages conferred by IMPT compared to IMRT. Further study is needed to determine if these translate into reduced toxicity and/or improved disease control. (C) 2015 Wiley Periodicals, Inc.
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