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- Title
Dosimetric comparison of O-ring versus conventional C-arm linear accelerator for volumetric modulated arc therapy (VMAT) of head and neck cancer and carcinoma cervix patients.
- Authors
Patodi, Vibhor; Soni, Tej P; Singh, Dinesh K; Patni, Nidhi; Jakhotia, Naresh; Chittappurath, Vineeth; Kuyyanangadan, Rajkamal; Jenny, Ashna; Kanniyappan, Elumalai; Gupta, Anil K; Gupta, Tara C; Singhal, Harish; Natrajan, Thirumoorthy; Kather, Farzana S
- Abstract
The objective of this study is dosimetric comparison between the O-ring Halcyon and C-arm Clinac iX linac for volumetric modulated arc therapy (VMAT) plans for head & neck (H&N) cancer and carcinoma cervix patients. Total 60 patients of H&N cancer and carcinoma cervix were enrolled prospectively from March 2021 to March 2023. VMAT plans with 6 MV photons for Halcyon and Clinac iX were generated and compared for each patient by dose volume histogram for planning target volume coverage and organ at risk (OAR) sparing. There were no differences in between both the linacs for PTV D2% and D98%, homogeneity index, conformity index, Dmax (maximum dose) and Dmean (mean dose) of OAR. Halcyon had significantly shorter treatment time compared to Clinac iX. Halcyon delivered higher integral dose and monitor units. O-ring Halcyon produces VMAT plans comparable to other C-arm linacs for H&N and carcinoma cervix patients.
- Subjects
VOLUMETRIC-modulated arc therapy; HEAD &; neck cancer; CERVICAL cancer; MEDICAL dosimetry; LINEAR accelerators; PHOTON beams
- Publication
Radiation Protection Dosimetry, 2024, Vol 200, Issue 6, p538
- ISSN
0144-8420
- Publication type
Article
- DOI
10.1093/rpd/ncae043