Prospective study comparing hepatic steatosis assessment by magnetic resonance imaging and four ultrasound methods in 105 successive patients

Figure 1 Hepato-renal index measurement with 6 mm wide regions of interest, at a depth of 9. 4 cm in liver right lobe and right kidney, University Hospital of Clermont-Ferrand.

Figure 2 Scatterplots. A-D: Scatterplots showing linear relationship between sound speed estimation (A), attenuation coefficient (B), hepato-renal index (C) and continuous controlled attenuation parameter (D) with magnetic resonance imaging-proton density fat fraction using 6-echo gradient (P < 0.001). PDFF: Proton density fat fraction; cCAP: Continuous controlled attenuation parameter; SSE: Sound speed estimation; AC: Attenuation coefficient; HRI: Hepato-renal index.

Figure 3 Receiver operating curve. A-D: Receiver operating curve for sound speed estimation (A), attenuation coefficient (B), continuous controlled attenuation parameter (C) and hepato-renal index (D). PDFF: Proton density fat fraction; cCAP: Continuous controlled attenuation parameter; SSE: Sound speed estimation; AC: Attenuation coefficient; HRI: Hepato-renal index.

Figure 4 Continuous controlled attenuation parameter area under the receiver operating characteristic curve for the diagnosis of steatosis according to SD. PDFF: Proton density fat fraction; AUROC: Area under the receiver operating characteristic curve.

Figure 5 Ultrasound finding according to liver steatosis based on proton density fat fraction.