Fig. 2
From: Geometric changes of parotid glands caused by hydration during chemoradiotherapy
Volume change of the parotid glands during the fourth week of treatment. Mean parotid gland volume for the chemoradiotherapy (CRT) group and the radiotherapy alone (RT) group, relative to the start of hydration (renamed day 0) during the second chemotherapy cycle of the CRT group in the fourth week of treatment (a). Volumetric change of the parotid glands between 3 days prior and 2 days after starting hydration within the CRT group and the RT group (b)