The gold standard for diagnosing NASH is through a liver biopsy, but this procedure is reserved for people at risk of advanced liver fibrosis. There’s no standard screening for NAFLD, so It’s more common for NASH to be diagnosed incidentally when being assessed for other health conditions. Imaging — specifically, an ultrasound, computed tomography (CT) scans, or certain types of magnetic resonance imaging (MRI) techniques — may be also used to look for signs of fat accumulation in the liver.[1][2]