A dosimetric comparison of helical tomotherapy treatment delivery with real-time adaption and no motion correction
This study assesses the ability of a helical tomotherapy system equipped with kV imaging and optical surface guidance to adapt to motion traces in real-time. To assess the delivery accuracy with motion, a unified testing framework was used. The average 2 %/2 mm γ-fail rates across all lung traces were 0.1 % for motion adapted and 17.4 % for no motion correction. Average 2 %/2 mm γ-fail rates across all prostate traces were 0.4 % for motion adapted and 12.2 % for no motion correction. Real-time motion adaption was shown to improve the accuracy of dose delivered to a moving phantom compared with no motion adaption. <b>MeSH Keywords:</b> Radiotherapy, image-guided; Radiation therapy, targeted.
Authors
- Paul Keall (ORCID: https://orcid.org/0000-0003-4803-6507)
- Jeremy Booth (ORCID: https://orcid.org/0000-0003-4004-1109)
- C. Sengupta (ORCID: https://orcid.org/0000-0002-8271-9777)
- Jonathan Hindmarsh (ORCID: https://orcid.org/0009-0004-8861-9445)
- Scott Crowe (ORCID: https://orcid.org/0000-0001-7028-6452)
- Sonja Dieterich (ORCID: https://orcid.org/0000-0002-9921-4345)
- Julia V. Johnson
- J. Walsh (ORCID: https://orcid.org/0009-0009-7091-7379)
Institutions
- University of Technology Sydney (AU)
- The University of Sydney (AU)
- Royal Brisbane and Women's Hospital (AU)
- Royal North Shore Hospital (AU)
- University of California Davis Medical Center (US)
Publication Details
- Journal
- Physics and Imaging in Radiation Oncology
- Published
- 2025-03-05
- DOI
- https://doi.org/10.1016/j.phro.2025.100741
- Citations
- 8
- Primary Topic
- Advanced Radiotherapy Techniques
- Type
- article
- Field-Weighted Citation Impact
- 15.06