title: Evaluation of femoropopliteal arteries with duplex ultrasound after angioplasty. Can we predict results at one year?
abstract: OBJECTIVE
  To determine if Duplex ultrasound (DUS) 1 day after percutaneous transluminal angioplasty (PTA) is prognostic for haemodynamic and clinical results at 1 year.
  
  
  METHODS
  Prospective study.
  
  
  METHODS
  Thirty-four femoropopliteal artery segments were treated with PTA. The peak systolic velocity ratio (PSV ratio = PSV in stenosis: PSV in normal segment) was determined with DUS before PTA, 1 day after PTA and 1 year after PTA. Clinical results were assessed with the SVS/ISCVS (Society for Vascular Surgery/International Society for CardioVascular Surgery) results classification.
  
  
  RESULTS
  A 1 year, clinical benefit from PTA was seen in 16 of 25 patients (64%) and haemodynamic improvement in 20 of 34 treated segments (59%). With DUS three residual stenoses were found 1 day after PTA; all occluded within 1 year. Segments with good DUS results after PTA showed haemodynamic deterioration in 30%. Clinical improvement was seen in most patients with DUS improvement, whereas no change or deterioration was found in patients with both good and poor DUS results at 1 year.
  
  
  CONCLUSIONS
  Residual stenosis on DUS 1 day after PTA is prognostic for failure within 1 year. However, good DUS results after PTA cannot predict haemodynamic success. Haemodynamic success at 1 year does not imply clinical success.
authors.affiliation: Department of Radiology, University Hospital Utrecht, The Netherlands.
authors.forename: A M
authors.initials: AM
authors.lastname: Spijkerboer
authors.forename: P C
authors.initials: PC
authors.lastname: Nass
authors.forename: J C
authors.initials: JC
authors.lastname: de Valois
authors.forename: Y
authors.initials: Y
authors.lastname: van der Graaf
authors.forename: B C
authors.initials: BC
authors.lastname: Eikelboom
authors.forename: W P
authors.initials: WP
authors.lastname: Mali
mesh_terms: D000328:Adult; D000368:Aged; D000792:Angiography; D000800:Angioplasty, Balloon; D001157:Arterial Occlusive Diseases / Q000000981:diagnostic imaging* / Q000628:therapy*; D001783:Blood Flow Velocity; D005260:Female; D005263:Femoral Artery / Q000000981:diagnostic imaging*; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011150:Popliteal Artery / Q000000981:diagnostic imaging*; D011237:Predictive Value of Tests; D011379:Prognosis; D011446:Prospective Studies; D013599:Systole / Q000502:physiology; D018616:Ultrasonography, Doppler, Duplex