Hypovascular hypointense nodules in hepatobiliary phase without T2 hyperintensity: long-term outcomes and added value of DWI in predicting hypervascular transformation

Publication date: July–August 2018
Source:Clinical Imaging, Volume 50
Author(s): Hae Jin Yang, Ji Soo Song, Eun Jung Choi, HyeMi Choi, Jae Do Yang, Woo Sung Moon
PurposeTo evaluate outcomes and risk factors associated with hypervascularization in hypovascular, hepatobiliary phase (HBP) hypointense nodules (HHNs) without T2 hyperintensity on gadoxetic acid-enhanced magnetic resonance (MR) images in chronic liver disease patients.Materials and methods222 HHNs were analyzed. Multivariate analysis with a Cox proportional hazard regression model was used.Results41 nodules became hypervascular hepatocellular carcinoma (HCC). History of HCC, hyperintensity on T1WI or DWI, and higher growth rate were risk factors for hypervascularization (P < .05).ConclusionHistory of HCC, hyperintensity on T1WI or DWI, and higher growth rate were associated with nodular progression to hypervascular HCC.



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