Use of surface-guided radiation therapy in combination with IGRT for setup and intrafraction motion monitoring during stereotactic body radiation therapy treatments of the lung and abdomen.

CONCLUSIONS: Surface-guided radiation therapy provides initial setup within 5 mm for patients treated with SBRT and can be used in place of skin marks or planar kV imaging prior to CBCT. In addition, continuous monitoring with SGRT during treatment was valuable in detecting potentially clinically meaningful intrafraction motion and was comparable in magnitude to shifts from additional CBCT scans. PTV margin reduction may be feasible for SBRT in the lung and abdomen when using SGRT for continuous patient monitoring during treatment.
PMID: 32196944 [PubMed - as supplied by publisher]

Source: Journal of Applied Clinical Medical Physics - March 19, 2020 Category: Physics Authors: Heinzerling JH, Hampton CJ, Robinson M, Bright M, Moeller BJ, Ruiz J, Prabhu R, Burri SH, Foster RD Tags: J Appl Clin Med Phys Source Type: research