Fig. 2From: Machine learning-based CT radiomics approach for predicting WHO/ISUP nuclear grade of clear cell renal cell carcinoma: an exploratory and comparative studyExamples of manually delineated regions of interest (ROIs) on NP images. a, b The delineation of ROI on two patients with low-grade CCRCC. c, d The delineation of ROI on two patients with high-grade CCRCCBack to article page