Fig. 2From: Delta radiomics analysis of Magnetic Resonance guided radiotherapy imaging data can enable treatment response prediction in pancreatic cancerHistogram skewness change during treatment predicts progression free survival. Division of patients based on Skewness value ratio between 5th (F5) and first (F1) fraction image enables identification of high- and low progression risk groups (A). Kaplan–Maier analysis of progression free survival (PFS) within each group confirms a significant difference (B)Back to article page