The usefulness of the sum of relative enhancement ratio in making a differential diagnosis of hepatocellular carcinoma from cirrhosis-related nodules

Clinical Imaging
Ki Woong YoonY M Han

Abstract

To estimate the diagnostic accuracy of the sum of relative enhancement ratio (sRER) in making a differential diagnosis of hepatocellular carcinoma (HCC) from benign cirrhosis-related nodules. Eighteen benign cirrhosis-related nodules and 18 HCCs were evaluated. Three radiologists independently reviewed computed tomography images using visual assessment and sRER. sRER was estimated by adding region-of-interest measurement in the arterial phase and the delayed phase. Diagnostic performance and accuracy were evaluated. The mean values of sRER were significantly higher in HCCs than in benign cirrhosis-related nodules. The sRER method improved diagnostic accuracy of differentiating HCCs from benign cirrhosis-related nodules.

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