Evaluation of replanning in intensity-modulated proton therapy for oropharyngeal cancer: Factors influencing plan robustness
The head and neck (H&N) region is frequently replanned during intensity-modulated proton therapy (IMPT), but replanning disrupts clinical workflow and presents additional burden on patients. The purpose of this study was to establish a standard treatment planning approach to minimize H&N replanning by identifying a correlation between dosimetric variables and replan frequency. In a retrospective study of 27 bilateral oropharyngeal cancer patients treated with IMPT at a single institution, cases were evaluated using Fisher's exact tests and logistic regression for a significant relationship between replan frequency and the following variables: beam number, clinical target volume (CTV) coverage, presence of dental fillings, and robustness.
Source: Medical Dosimetry - Category: Radiology Authors: Noelle Deiter, Felicia Chu, Nishele Lenards, Ashley Hunzeker, Karen Lang, Daniel Mundy Source Type: research
More News: Cancer | Cancer & Oncology | Head and Neck Cancer | Oropharyngeal Cancer | Proton Therapy | Radiology | Study