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  • Title: [Duplex sonography of the portal vein. Procedure in healthy probands and patients with portal hypertension].
    Author: Lotz R, Mildenberger P, Kreitner KF, Rambow A, Schiedermeier P, Staritz M.
    Journal: Fortschr Med; 1989 May 20; 107(15):330-4. PubMed ID: 2661377.
    Abstract:
    Duplex ultrasonography is a useful non-invasive means of investigating portal vein blood flow in cases of liver disease. A group of 50 selected consecutive patients with portal hypertension revealed a significant increase in portal vein diameter of 3.5 mm on average, and a significant decrease in mean flow rate of, on average, 3.1 cm/s, in comparison with a group of 50 healthy control subjects. In contrast, alcohol-induced portal hypertension appeared always to be associated with an elevated flow rate. On average, the flow volume increased by 200 ml/min. With the exception of vessel diameter, which remains virtually unchanged, both patients and controls revealed, postprandially, a comparable increase in the parameters measured.
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