Fig. 5From: Interfractional variation in whole-breast VMAT irradiation: a dosimetric study with complementary SGRT and CBCT patient setupPercentage of treatment fractions where the variation of CTV outline exceeded the given margin thresholds. The variation was measured in HD95 for CBCT and initial SGRT setup methods. The vertical line marks the 5 mm margin that was used in planning. With CBCT, all the HD95 values were under 10 mm and only one fraction exceeded 9 mmBack to article page