Usefulness of Semi-cylindrical Beam Spoiler in Treatment of Early Glottic Cancer Using 6 MV Photon Beam
- Journal
- In Vivo
- Vol
- 36(1)
- Page
- 465-472
- Year
- Miscellaneous
- File
- In vivo_jan 36_SHA.pdf (3.3M) 5회 다운로드 DATE : 2022-01-10 15:55:34
- Link
- https://pubmed.ncbi.nlm.nih.gov/34972750/ 58회 연결
Patients and methods: The 2D dose distributions were also calculated and measured with and without the sCBS and with a 0.5 cm thick bolus. A retrospective study of 8 patients treated between 2012 and 2018 was performed.
Results: The 2D dose distributions obtained from the treatment planning system (TPS) and film measurements were in good agreement. In the planning study, the V95%, V100%, conformal index (CI), and homogeneity index (HI) of all pPTVs for the sCBS plans were better than those for the open field plans (p<0.01). Especially, sCBS plans had better skin sparing effect than bolus plans (p<0.05).
Conclusion: The sCBS of the 6 MV photon beam could be a useful tool for the treatment of early glottic cancers.