Fig. 1From: Injection of hydrogel spacer increased maximal intrafractional prostate motion in anterior and superior directions during volumetric modulated arc therapy-stereotactic body radiation therapy for prostate cancerBoxplots of the maximum intrafractional displacement. a Mean of superior MID. b Mean of inferior MID. c Mean of left MID. d Mean of right MID. e Mean of anterior MID. f Mean of posterior MID. g Mean of maximum intrafractional vector length. Abbreviations: MID maximum intrafracitonal displacement. †Statistically significantBack to article page