Patients on home parenteral nutrition are at risk for developing liver dysfunction, which is due partly to the accumulation of lipids in the liver (steatosis) and may progress to end-stage liver disease with overt liver failure. Therefore, a timely diagnosis with easy access to repeated assessment of the degree of liver steatosis is of great importance. A pilot study was performed in 14 patients on long-term home parenteral nutrition using the computer-aided ultrasound method. Ultrasound radio frequency data were acquired using a phased array transducer and were converted into conventional B-mode images. All patients were subjected to proton magnetic resonance spectroscopy measurement of liver fat content for reference. Computer-aided ultrasound parameters similar to those in a previous validation study in cows revealed significant correlations with fat content measured by magnetic resonance spectroscopy. The most significant parameters were the residual attenuation coefficient (RÃ‚Â =Ã‚Â 0.95, pÃ‚Â <Ã‚Â 0.001) and the lateral speckle size (RÃ‚Â =Ã‚Â 0.77, pÃ‚Â =Ã‚Â 0.021). These findings indicate the potential usefulness of computer-aided ultrasound for staging of hepatic steatosis.