Fig 7.

MRE demonstrates increasing liver stiffness values with increasing stage of fibrosis. The top row shows wave images from four patients with biopsy-proven hepatic fibrosis ranging from METAVIR stage 1 to 4. The lower row shows corresponding elastograms for these patients. The wavelength of the imaged shear waves and mean stiffness of liver tissue wave increases systematically with the severity of fibrosis. In general, the attenuation of shear waves with depth in the liver also decreases with increasing severity of fibrosis.