title: Portal vein evaluation with US: comparison to angiography combined with CT arterial portography.
abstract: OBJECTIVE
  To compare ultrasound (US) to angiography combined with computed tomography during arterial portography (CTAP) in the preoperative evaluation of the portal vein.
  
  
  METHODS
  Sixty-three consecutive patients being considered for hepatic resection underwent color and spectral Doppler US and angiography with CTAP before surgery. The main, right, and left portal veins were evaluated separately. A total of 187 veins were assessed for encasement, occlusion, or thrombosis.
  
  
  RESULTS
  At surgery, 41 portal veins were abnormal. US allowed detection of 38 of 41 (93%) involved portal veins with 93% sensitivity, 99% specificity, 97% positive predictive value, and 98% negative predictive value. Angiography with CTAP allowed diagnosis of 37 of 41 (90%) involved portal veins with 90% sensitivity, 99% specificity, 95% positive predictive value, and 97% negative predictive value.
  
  
  CONCLUSIONS
  US is comparable to angiography combined with CTAP in evaluation of the portal vein.
authors.affiliation: Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA.
authors.forename: A M
authors.initials: AM
authors.lastname: Bach
authors.forename: L E
authors.initials: LE
authors.lastname: Hann
authors.forename: K T
authors.initials: KT
authors.lastname: Brown
authors.forename: G I
authors.initials: GI
authors.lastname: Getrajdman
authors.forename: S K
authors.initials: SK
authors.lastname: Herman
authors.forename: Y
authors.initials: Y
authors.lastname: Fong
authors.forename: L H
authors.initials: LH
authors.lastname: Blumgart
mesh_terms: D003251:Constriction, Pathologic / Q000000981:diagnostic imaging; D005260:Female; D006498:Hepatectomy; D006801:Humans; D008297:Male; D008875:Middle Aged; D011169:Portal Vein / Q000000981:diagnostic imaging*; D011172:Portography / Q000379:methods; D011237:Predictive Value of Tests; D011300:Preoperative Care; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D013927:Thrombosis / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed / Q000379:methods; D018608:Ultrasonography, Doppler