A Dosimetric Comparison of Split-Field IMRT, Whole-Field IMRT, and Volumetric Modulated Arc Therapy for Patients With Early-Stage Tonsillar Cancer

Three of the most widely used techniques in the treatment of head and neck malignancies include split-field intensity-modulated radiation therapy (SF-IMRT) in which the low neck is treated with a single anterior-posterior beam matched above the glottis, whole-field IMRT (WF-IMRT) where the entire target volume is treated with a single IMRT plan using a static beam arrangement, and volumetric modulated arc therapy (VMAT). We have recently demonstrated that comparable laryngeal sparing in the setting of bilateral neck radiation can be achieved using all three techniques for the treatment of advanced oropharyngeal cancers.

http://ift.tt/2pcSPqU