Distinguishing intrahepatic cholangiocarcinoma from hepatocellular carcinoma in patients with and without risks: the evaluation of the LR-M criteria of contrast-enhanced ultrasound liver imaging reporting and data system version 2017

ConclusionAlthough the LR-M criteria showed high sensitivity in distinguishing ICCs from HCCs in patients with and without risks, the specificity would be significantly increased after adjustments to current criteria.Key Points• The LR-M criteria of CEUS-LI-RADS v2017 could be used for distinguishing ICC from HCC not only in patients with risk factors for HCC but also in those without risk factors.• The diagnostic performance of differentiating ICC from HCC by using the LR-M criteria showed high AUC (0.92), high sensitivity (97.25%), intermediate specificity (87.72%), and high accuracy (92.38%).• If the onset of early washout was adjusted to<  45 s, the specificity was significantly increased from 87.72 to 95.61% (p = 0.004) without losing sensitivity (p = 0.945), and the rate of HCCs misdiagnosed as ICCs would decrease from 12.3 to 4.4%.
Source: European Radiology - Category: Radiology Source Type: research