Fig. 3From: CT features based preoperative predictors of aggressive pathology for clinical T1 solid renal cell carcinoma and the development of nomogram modelThe placement method of ROIs for measuring TAV and TAC: (A) PCP, (B) CMP, (C) NP, (D) EP, and for measuring HDT: (E) PCP, (F) CMP, (G) NP, (H) EP. ROI: region of interest; PCP: precontrast phase; CMP: corticomedullary phase; NP: nephrographic phase; EP: excretory phaseBack to article page