Fig. 2From: Preoperative clinical-radiomics nomogram for microvascular invasion prediction in hepatocellular carcinoma using \(^{18}\)F-FDG PET/CTAnnotation schematics of ROI were performed using ITK-SNAP software with the red portion of the figure as the manually outlined ROI. In the first row, CT (A) and PET (B) images of a 65-years-old male patient with coarse beam HCC with MVI. In the second row, CT (C) and PET (D) images for a 53-year-old male with coarse beam HCC without MVIBack to article page