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MR elastography of HCV-related fibrosis. MR elastographic wave images (left) and color-coded elastograms (right), obtained at 3 T in three patients with chronic HCV infection, show biopsy-proved stage F0 (a), F2 (b), and F4 (c) fibrosis. Propagation of shear waves through the liver is adequate in all three patients. The elastograms show progressively greater liver stiffness in the three patients, a finding that corresponds to increases in histologic fibrosis stage.
