• Eur J Radiol · Mar 2012

    Role of contrast-enhanced ultrasound in decision support for diagnosis and treatment of hepatic artery thrombosis after liver transplantation.

    • Qiang Lu, Xiao Fei Zhong, Zi Xing Huang, Bo Yang Yu, Bu Yun Ma, Wen Wu Ling, Hong Wu, Jia Ying Yang, and Yan Luo.
    • Department of Ultrasound, West China Hospital of Sichuan University, Chengdu 610041, China.
    • Eur J Radiol. 2012 Mar 1;81(3):e338-43.

    ObjectiveTo assess role of contrast-enhanced ultrasound (CEUS) in decision support for diagnosis and treatment of hepatic artery thrombosis (HAT) after liver transplantation.Materials And MethodsBetween January 2005 and January 2011, 605 patients underwent liver transplantation in our medical center. All the liver transplant recipients received Doppler ultrasound scanning and CEUS examination was performed in 45 patients with suspected HAT on Doppler ultrasound. Sensitivity, specificity, accuracy, positive predict value and negative predictive value of CEUS in diagnosing HAT were determined based on the results from angiography, surgery and clinical follow-up.ResultsFourteen HATs, including one late HAT, were diagnosed by CEUS. Twelve HAT cases were confirmed by angiographic and/or surgical findings, while the late HAT and other 31 patients with negative CEUS finding were confirmed by the clinical follow-up. There was a false positive HAT diagnosed by CEUS in which angiography revealed a patent hepatic artery. The sensitivity, specificity, accuracy, positive predict value and negative predictive value of CEUS in diagnosing HAT were 100%, 96.9%, 97.8%, 92.9% and 100%, respectively. In our series of 605 liver transplants, the incidence and mortality of HAT was 2.2% (13/605) and 53.8% (7/13), respectively.ConclusionsOur study demonstrates the important role of CEUS in decision support for diagnosis and treatment of HAT after liver transplantation. When HAT is suspected by Doppler ultrasound, CEUS shall immediately be performed to elucidate its nature. A negative CEUS finding shall avoid invasive angiography. Such as, CEUS may alter the clinical workflow on HAT detection after liver transplantation.Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.

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