Image quality of 4D in-treatment CBCT acquired during lung SBRT using FFF beam: a phantom study.
Jihun KimKi Chang KeumHo LeeChae-Seon HongKwangwoo ParkJin Sung KimPublished in: Radiation oncology (London, England) (2020)
Full-arc acquisition with an increased tube current (e.g. 40 mA) is recommended to compensate for degradation in the CBCT image quality due to unflattened MV beam scatter. Acquiring in-treatment CBCT with a high-MU treatment beam is also suggested to improve the resulting CBCT image quality.