UGAP is a new, non-invasive method for measuring a patient-specific, quantitative attenuation parameter that is well correlated to liver biopsy for discriminating hepatic steatosis among patients with CLD. The B-Mode image provides an anatomical guide while the attenuation and quality maps provide an attenuation quality guide. This combination provides extensive user assistance for proper placement of the UGAP measurement ROI. Lastly, automated algorithms optimize the results within the specified measurement ROI. As such, UGAP is an easy and fast tool that, in combination with 2D shear wave elastography, has the potential to aid in the initial diagnosis and follow-up care of CLD patients