Concomitant Imaging Dose and Cancer Risk in Image Guided Thoracic Radiation Therapy Presented in part at the 56th Annual Meeting of the American Society for Radiation Oncology, San Francisco, CA, Sept 14-17, 2014.
Cone-Beam Computed Tomography
Organs at Risk
As functions of patient size, a series of models for personalized estimation of kVCBCT doses to thoracic organs and cardiac substructures have been proposed. Pediatric patients received much higher doses than did the adults, and some nonthoracic organs could be irradiated unexpectedly by the default scanning protocol. Increased cancer risks and disease adverse events in the thorax were strongly related to higher imaging doses and smaller chest dimensions.