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. 2015 Sep 9;2:123–128. doi: 10.1016/j.ejro.2015.08.001

Fig. 1.

Fig. 1

43-year-old male patient with HCV. SS EPI diffusion-weighted images acquired at 1.5 T and 3.0 T. (A–C): 1.5 T coronal DWI images [b = 200 (A), 400 (B), 800 (C)]. (D–F): 3.0T axial DWI images [b = 200 (D), 400 (E), 800 (F)]. (G): Coronal DWI image (b = 200) reformatted from axial acquisition at 3.0T. (A) and (G) show ROI placement for signal intensity measurement. ROIs with the same size were placed within the right hepatic lobes as similar location as possible between scans. (H): Graph shows liver SI decay with 16 b values acquired at 1.5 T (Δ) and 3.0 T (■). For display purposes, data were normalized to b0 SI. Dashed (1.5 T) and solid (3.0 T) lines are biexponential model curves using Bayesian estimated IVIM parameters Calculated values were D (true diffusion coefficient) = 1.19 and 0.96 × 10−3 mm2/s, PF (perfusion fraction) = 13.6% and 10.4% and D* (pseudo-diffusion coefficient) = 82.3 and 41.9 × 10−3 mm2/s at 1.5 T and 3.0 T, respectively.