Reducing X-ray imaging for proton postmastectomy chest wall patients

Proton postmastectomy radiation therapy (PMRT) patients are positioned daily using surface imaging with additional x-ray imaging for confirmation. This study aims to investigate whether weekly x-ray imaging with daily surface imaging, as performed for photon treatment, is sufficient to maintain PMRT patient positioning fidelity.Calculated radiographic corrections and surface imaging residual setup errors were analyzed at the treatment angle for...