Surface guided radiotherapy (SGRT)
The use of optical imaging systems to localize and monitor patient positioning during radiation therapy treatments is quickly expanding at our clinic and elsewhere. Our surface guided radiotherapy (SGRT) research topics include:
- Impacts of tattooless RT on setup accuracy, treatment times, and patient experience
- Effects of skin tone on SGRT system performance
- SGRT as virtual immobilization to increase patient access to care
- Use of SGRT to inform PTV margins
Team members
Dr. Andrew Robertson, Dr. Samantha Lloyd, Dr. Aria Malhotra, Tigris Joseph
Papers and presentations
A Malhotra, AKH Robertson, I Sun, SAM Lloyd. "Surface guided breast radiation therapy: improving patient experience." COMP Annual Scientific Meeting, London, ON. COMP Highlights (2025).
A Malhotra, AKH Robertson, I Sun, SAM Lloyd. Operational assessment of tattooless breast radiotherapy using AlignRT surface guidance. Tech Innov Patient Support Radiat Oncol. 2025;36:100349. Published 2025 Oct 12. doi:10.1016/j.tipsro.2025.100349
M Halajian, L Tu, A KH Robertson and S AM Lloyd. “Skin tone adjusted responsiveness in surface guided radiation therapy.” BC Cancer Summit, Vancouver, BC. Virtual Poster Award Winner (2023).
A KH Robertson, B Gill, R JN Coope and S AM Lloyd. “3D-printed modification of a daily QA phantom for all-in-one evaluation of 6DOF couch positioning with surface and kV imaging localization.” COMP Annual Scientific Meeting, Quebec City, QC. Medical Physics, 49(8), 5682-3 (2022).