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Abstract #1682

T1 mapping on gadoxetic acid-enhanced MR imaging for preoperative prediction of microvascular invasion in hepatocellular carcinoma

Zhen Zhang1, Song Bin2, and Zhen Zhang1

1Department of Radiology, West China Hospital,Sichuan University, Chengdu, China, 2West China Hospital,Sichuan University, Chengdu, China

Microvascular invasion (MVI) is regarded as one of the independent risk factors for recurrence and poor prognosis of hepatocellular carcinoma (HCC). However, reliable diagnosis of MVI can only be obtained postoperatively. In this study, preoperative T1 mapping on gadoxetic acid-enhanced MR imaging were performed on 79 patients to demonstrate potential imaging biomarkers in prediction of MVI and early recurrence. As a result, pre-contrast T1 relaxation time, reduction rate of T1 relaxation time combined with the presence of peritumoral hypointensity on HBP were found to be potential predictive biomarkers in the preoperative prediction of MVI in HCCs.

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