Adaptive Radiation Therapy for Head and Neck Cancer—Can an Old Goal Evolve into a New Standard?

<table>Volumetric changes for high-risk CTV (CTV70), intermediate-risk CTV (CTV63), low-risk CTV (CTV57), and parotid gland in a patient who had two replans performed during the course of treatment.  The first replan occurred at the 9th treatment fraction, and the second replan was designed at the 23rd treatment fraction.</table>

Journal of Oncology

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Figure 11

Figure 11: Adaptive Radiation Therapy for Head and Neck Cancer—Can an Old Goal Evolve into a New Standard? 