Fig. 3From: Prostate motion during radiotherapy of prostate cancer patients with and without application of a hydrogel spacer: a comparative studyCorrelation between prostate motion, mean (mm) of largest 50 % motion, and a. hydrogel age; b. fraction number; and c. treatment time. d. Correlation between differences in treatment start and end positions and prostate motion range. Note: Error bars in a. and b. represents mean ± standard deviation of all available fractionsBack to article page