[Follow-up of TIPS: evaluation of signs of dysfunction with Doppler ultrasonography].
OBJECTIVE
to assess the signs of TIPS dysfunction at Doppler sonography.


METHODS
retrospective study of signs observed in 106 TIPS including 31 TIPS with dysfunction (portoauricular pressure gradient > 12 mmHg).


RESULTS
the signs of TIPS dysfunction were a decrease in the mean velocity in the TIPS (for a velocity < 40 cm/sec, 90% sensitivity, 96%), a hepatopetal intrahepatic portal flow (on the right 90% sensitivity, 100% specificity, on the left 95% sensitivity, 92% specificity), a lack of cardiac modulation of the signal in the TIPS (93% sensitivity, 65% specificity), a hepatic vein flow reversal (30% sensitivity, 100% specificity), and, the only direct sign of stenosis, an increase of the mean velocity in the stenosis (42% sensitivity, 95% specificity for a velocity > or = 1 m/sec).


CONCLUSIONS
the most sensitive Doppler signs of tips dysfunction are the indirect signs of stenosis.
Puttemans
T
T
Département d'Imagerie Médicale, Cliniques Universitaires Saint-Luc-UCL, Belgique.
Van Beers
B E
BE
Goffette
P
P
Dardenne
A N
AN
Pringot
J
J
D000328:Adult; D000368:Aged; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D006975:Hypertension, Portal / Q000209:etiology / Q000601:surgery*; D008103:Liver Cirrhosis / Q000150:complications / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011167:Portacaval Shunt, Surgical / Q000009:adverse effects*; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D018608:Ultrasonography, Doppler
Suivi des TIPS: evaluation des signes de dysfonctionnement en echographie doppler.