title: Prediction of outcome after femoropopliteal balloon angioplasty by intravascular ultrasound.
abstract: OBJECTIVE
  To evaluate intravascular ultrasound (IVUS) as a control procedure after femoropopliteal percutaneous transluminal angioplasty (PTA), and compare it with arteriography.
  
  
  METHODS
  Descriptive study.
  
  
  METHODS
  Arteriographic and intravascular ultrasound data obtained from 18 patients (20 limbs) undergoing PTA of the superficial femoral or popliteal artery. The degree of stenosis, the diameter and area of the lumen and the morphological changes in the plaque were related to the short-term patency of the intervention, as evaluated by duplex scan and ankle branchial index.
  
  
  RESULTS
  Fifteen arteries remained patent. Two occlusions and two stenoses developed during the first 3 months after the intervention and one occlusion occurred after 1 year. The following IVUS parameters were related to a favourable patency: presence of calcification; dissection or plaque rupture and residual stenosis of less than 70%. The arteriographically determined diameter reduction did not show predictive value.
  
  
  CONCLUSIONS
  This study shows that in contrast to arteriography, IVUS revealed parameters predictive for patency following PTA.
authors.affiliation: Department of Vascular Surgery, Rigshospitalet, University of Copenhagen, Denmark.
authors.forename: K C
authors.initials: KC
authors.lastname: Vogt
authors.forename: S
authors.initials: S
authors.lastname: Just
authors.forename: J G
authors.initials: JG
authors.lastname: Rasmussen
authors.forename: T V
authors.initials: TV
authors.lastname: Schroeder
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000792:Angiography / Q000592:standards; D000800:Angioplasty, Balloon / Q000592:standards*; D001157:Arterial Occlusive Diseases / Q000000981:diagnostic imaging* / Q000628:therapy*; D005260:Female; D005263:Femoral Artery; D006801:Humans; D008297:Male; D008875:Middle Aged; D011150:Popliteal Artery; D011237:Predictive Value of Tests; D015203:Reproducibility of Results; D016896:Treatment Outcome; D018616:Ultrasonography, Doppler, Duplex; D018084:Ultrasonography, Interventional / Q000592:standards*; D014654:Vascular Patency