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A novel diagnostic test, named the PREW© score, was formulated to predict the known liver disease status of a purposive sample of 500 patients (304 cases and 196 controls) referred for abdominal sonograms. The score was defined by (P R E)/W, where P = portal vein pressure gradient (mm Hg), R = ratio between the observed mean portal vein diameter in the patient (mm) and the mean diameter in healthy subjects (mm), E = echogenicity of liver parenchyma (ECHO grade scale), and W = hepatic venous waveform (1 = monophasic to 3 = triphasic). Cases with PREW scores &gt;50 were about 480 times more likely than the controls to be diagnosed with cirrhosis/ascites. Cases with PREW scores of 16 to 50 were about 6 to 15 times more likely than the controls to be diagnosed with hepatitis and about 15 to 120 times more likely to be diagnosed with cirrhosis/ascites. It was not possible to clearly discriminate between a diagnosis of hepatitis and cirrhosis/ascites if the PREW score was less than 50. The likelihoods of patients with PREW scores &gt;25 being diagnosed with nonalcoholic fatty liver disease/steatohepatitis (NAFLD/NASH) or gallbladder (GB) disease were not statistically significant. A PREW score greater than 25 identified cases diagnosed with hepatitis/cirrhosis/ascites but eliminated diagnoses of NAFLD/NASH/GB. The clinical implication is that a PREW score &gt;50 may help to facilitate the diagnosis of cirrhosis without confirmation by liver biopsy.

The Prediction of Liver Disease Status Using a Combination of Sonographic and Doppler-Derived Observations of the Portal Venous System