Using IVIM-MRI and R2⁎ Mapping to Differentiate Early Stage Liver Fibrosis in a Rat Model of Radiation-Induced Liver Fibrosis

Figure 2

Axial T1WI, T2WI, and R2 mapping at different fibrosis stages. a-d correspond to the rats without liver fibrosis, and the rats in stage F0, F1, and F2 on T1WI. e-h: on T2WI. The liver contour was smooth. The size, shape, and proportion of the liver are normal; no abnormal signal could be seen in both left and right lobes (a-h). (i-l) correspond to the rat without liver fibrosis, and the rats at stages F0, F1, and F2. The color ranging from blue to red represents the values ranging from low to high. No color difference between left and right lobe could be seen in the rats before radiation (i). R2 values of the right lobes increase gradually from stage F0 to F2 (j-l).

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