Three-Tesla magnetic resonance elastography for hepatic fibrosis: Comparison with diffusion-weighted imaging and gadoxetic acid-enhanced magnetic resonance imaging

Figure 4 A 20-year-old woman in the non-hepatic fibrosis group, with incidental hepatic mass (biopsy proven focal nodular hyperplasia later) on screening. A: T2-weighted reference image on which the measurement of three MR parameters were performed; B: MRE (95% confidence map) shows normal range stiffness value of 1.88 kPa (asterisk) in the right lobe of the liver; C: Wave image shows normal range (not elongated) wavelength of the corresponding liver parenchyma; D: ADC map of the DWI image with b = 400 at the same level as A. Measured ADC value was 1.119 × 10^-3 mm²/s; E: Hepatobiliary phase image of gadoxetic acid-enhanced MR at the same level as A. Measured CEI was 1.826. MR: Magnetic resonance; MRE: Magnetic resonance elastography; DWI: Diffusion weighted image; ADC: Apparent diffusion coefficient; CEI: Contrast enhancement ratio.