CONCLUSION
Based on our limited dataset, we were able to demonstrate the
feasibility of CSI treatment planning for RefleXion X1. The successfully
generated RefleXion plans resulted in comparable dosimetric indices
between RefleXion X1 and Eclipse VMAT plans, as no statistically
significant differences were detected in the PTV near maximum dose or
average Dmean to critical structures except the bowel bag. Despite
having longer average beam-on time than VMAT plans, RefleXion X1
utilizes a moving couch to allow for single-isocenter technique by
encompassing the entire volume in one scan, potentially reducing
translational and dosimetric match errors associated with
multi-isocenter setups using C-arm linear accelerators.