Adaptive Radiation Therapy for Head and Neck Cancer—Can an Old Goal Evolve into a New Standard?
Figure 4
A case example of changes in parotid gland volume during a 33-fraction IMRT treatment course. (a) shows the percent of volume change for each parotid as a function of treatment fraction. The (b) and (c) shows an axial CT slice of the parotid before radiotherapy (b) and after 33 fractions of radiotherapy (c).