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Dosimetric Evaluation of Body Contour Changes to Target Volumes and Organs at Risk for Cervix and Head and Neck Radiotherapy Plans
International Journal of Medical Physics Clinical Engineering and Radiation Oncology
Purpose: To investigate how much dose discrepancy would be caused by the anatomy changes during the radiotherapy (RT) course. Methods: Ten cervical cancer and ten nasopharyngeal carcinoma (NPC) CT datasets from RT patients were enrolled. The body contour from different directions changed to simulate the weight loss or gain for cervical cancer patients, who had been treated with external-beam RT using intensity-modulated radiation therapy (IMRT) or volumetric modulated arc therapy (VMAT).doi:10.4236/ijmpcero.2020.93010 fatcat:zrc7iaj3xfgu3gv4zln5gwdkya