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  • Title: Transjugular intrahepatic portosystemic shunt: evaluation with Doppler sonography.
    Author: Longo JM, Bilbao JI, Rousseau HP, García-Villareal L, Vinel JP, Zozaya JM, Joffre FG, Prieto J.
    Journal: Radiology; 1993 Feb; 186(2):529-34. PubMed ID: 8421760.
    Abstract:
    To assess the potential role of ultrasound (US) in evaluating transjugularly inserted intrahepatic portosystemic shunts, the authors performed sonographic, including duplex and color Doppler, studies in 23 patients. Imaging was performed before, during the first week after, and 2-3 months after shunt placement. The prostheses were readily visualized and shunt patency was easily determined with Doppler US in all patients. The mean of the maximum blood flow velocity in the main portal vein increased from 7 (range, 3-16) cm/sec before shunting to 24 (range, 18-47) cm/sec 2-3 months after shunting. Flow reversal was detected in the intrahepatic portal branches in 16 (69%) of the 23 patients. US allowed prompt detection and management of two cases of incomplete stent expansion and one case of shunt stenosis due to pseudo-intimal hyperplasia. Sonography is a valuable tool for evaluation of changes in hepatic hemodynamics after transjugular intrahepatic shunt placement.
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