Evaluation of dosimetric and spatial accuracy of a virtual cone technique for radiosurgery using linac‐integrated CBCT‐based polymer gel dosimetry
The 50% isodose width of the gel measurement was 5.15 mm (mean), which was tighter than our Eclipse v15.6 beam model. The end-to-end spatial accuracy test, only achievable with gel dosimetry using CBCT readout, resulted in sub-millimeter accuracy. This study demonstrates the value of gel dosimetry in verifying the dosimetric and spatial accuracy of this high precision, stereotactic technique.
Authors
- Derek Hyde
- Tenzin Kunkyab (ORCID: https://orcid.org/0000-0003-0467-0784)
- Andrew Jirasek (ORCID: https://orcid.org/0000-0003-0844-2092)
- Benjamin Mou (ORCID: https://orcid.org/0000-0002-5636-604X)
- Michael Kudla (ORCID: https://orcid.org/0000-0001-9405-4488)
- Nathan Becker (ORCID: https://orcid.org/0000-0002-1428-7589)
- M Lamey
Institutions
- University of British Columbia (CA)
- Ottawa Hospital (CA)
- Kelowna General Hospital (CA)
- Okanagan University College (CA)
Publication Details
- Journal
- Journal of Applied Clinical Medical Physics
- Published
- 2025-03-18
- DOI
- https://doi.org/10.1002/acm2.70081
- Primary Topic
- Advanced Radiotherapy Techniques
- Type
- article
- Field-Weighted Citation Impact
- 0.00