Figure 16b.

Diffusion-weighted imaging and ADC values in a patient with alcohol- and HCV-related cirrhosis (stage F4). (a–f) Diffusion-weighted MR images with b values of 0 (a), 100 (b), 250 (c), 500 (d), 750 (e), and 1000 (f) sec/mm², obtained in a single breath hold at 3 T, show a progressive reduction in signal intensity of the cirrhotic liver with increasing b values; however, the reduction is less pronounced than in noncirrhotic patients. At a b value of 1000 sec/mm², the liver silhouette remains visible. (g) Corresponding ADC map of the abdomen, generated under the assumption of monoexponential decay, shows that the liver has a mean ADC of ~0.9 × 10⁻³ mm²/sec.