Fig 1
From: Quantitative assessment of washout in hepatocellular carcinoma using MRI
Measurement of signal intensities in a nodule containing hypervascular and non-hypervascular parts due to necrosis. T1- weighted fat-suppressed images in the (a) arterial phase and (b) equilibrium phase. The lesion ROI (yellow) was placed over the hypervascular part. Two identical ROIs were placed over the adjacent liver parenchyma outside the nodule (red) in order to average the signal intensity