LI-RADS for CT diagnosis of hepatocellular carcinoma: performance of major and ancillary features

Abdominal Radiology
Ayman AlhasanAn Tang

Abstract

To evaluate the diagnostic performance of Liver Imaging Reporting and Data System (LI-RADS) v2017 major features, the impact of ancillary features, and categories on contrast-enhanced computed tomography (CECT) for the diagnosis of hepatocellular carcinoma (HCC). This retrospective study included 59 patients (104 observations including 72 HCCs) with clinical suspicion of HCC undergoing CECT between 2013 and 2016. Two radiologists independently assessed major and ancillary imaging features for each liver observation and assigned a LI-RADS category based on major features only and in combination with ancillary features. The composite reference standard included pathology or imaging. Per-lesion estimates of diagnostic performance of major features, ancillary features, and LI-RADS categories were assessed by generalized estimating equation models. Major features (arterial phase hyperenhancement, washout, capsule, and threshold growth) respectively had a sensitivity of 86.1%, 81.6%, 20.7%, and 26.1% and specificity of 39.3%, 67.9%, 89.9%, and 85.0% for HCC. Ancillary features (ultrasound visibility as discrete nodule, subthreshold growth, and fat in mass more than adjacent liver) respectively had a sensitivity of 42.6%, 50.8%, and 1...Continue Reading

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Citations

Jan 16, 2020·Journal of Computer Assisted Tomography·Ahmed Abdel Khalek Abdel RazekWalaa Shabana
Mar 8, 2020·Liver International : Official Journal of the International Association for the Study of the Liver·Sunyoung LeeMyeong-Jin Kim
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