Figure 1. An example of axial CT images with measurements at the IVC and the aorta.

1A-1D: Collection of vessel densities for the CT scans; 1A: the general level of the CT scans taken; 1B: Measurement taken from the intrahepatic IVC; 1C: Measurement taken from the abdominal aorta; 1D: Final CT measurements for data collection

IVC: inferior vena cava