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An example of dose distribution in IMRT and VMAT plans for oropharyngeal cancer.
Notes: (A and B) IMRT. (C and D) VMAT. The primary planning target volume (red contour) is encompassed by 95% isodose (orange line and color wash).
Abbreviations: IMRT, intensity-modulated radiation therapy; VMAT, volumetric modulated arc therapy.
