[Duplex sonography of the portal vein. Procedure in healthy probands and patients with portal hypertension].
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.
Lotz
R
R
Mildenberger
P
P
Kreitner
K F
KF
Rambow
A
A
Schiedermeier
P
P
Staritz
M
M
D001783:Blood Flow Velocity; D006801:Humans; D006975:Hypertension, Portal / Q000175:diagnosis*; D011169:Portal Vein / Q000473:pathology; D012016:Reference Values; D014463:Ultrasonography / Q000295:instrumentation*
Duplexsonographie der Pfortader. Vorgehen bei Gesunden und Patienten mit portaler Hypertension.