title: [Follow-up of TIPS: evaluation of signs of dysfunction with Doppler ultrasonography].
abstract: 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.
authors.affiliation: Département d'Imagerie Médicale, Cliniques Universitaires Saint-Luc-UCL, Belgique.
authors.forename: T
authors.initials: T
authors.lastname: Puttemans
authors.forename: B E
authors.initials: BE
authors.lastname: Van Beers
authors.forename: P
authors.initials: P
authors.lastname: Goffette
authors.forename: A N
authors.initials: AN
authors.lastname: Dardenne
authors.forename: J
authors.initials: J
authors.lastname: Pringot
mesh_terms: 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
vernacular_title: Suivi des TIPS: evaluation des signes de dysfonctionnement en echographie doppler.