Figure 5
PCI of portal veins and measurement. Panel (b) is a magnified image of the region in the black box in (a). Portal veins filled with MCG could be evidently delineated. Panel (c) shows the gray value along the green line in (b). The MCG diameter could be measured by identifying the density curve. The images were obtained with an SDD of 30 cm. The pixel size was 0.325 µm × 0.325 µm, and the exposure time was 3 s. |