title: Comparison of angiography and intravascular ultrasound before and after balloon angioplasty of the femoropopliteal artery.
abstract: OBJECTIVE
  To compare angiographic and intravascular ultrasound (IVUS) data before and after balloon angioplasty (PTA) of the femoropopliteal artery.
  
  
  METHODS
  Qualitative and quantitative analyses were performed on corresponding angiographic and IVUS levels obtained from 135 patients.
  
  
  RESULTS
  IVUS detected more lesions, calcified lesions, and vascular damage than angiography. Sensitivity of angiography was good for the presence of a lesion (84%), moderate for eccentric lesions (53%) and for vascular damage (52%), and poor for calcified lesions (30%). The increase in angiographic diameter stenosis was associated with a decrease in lumen area and increase in percentage area stenosis on IVUS.
  
  
  CONCLUSIONS
  Angiography is less sensitive than IVUS for detecting lesion eccentricity, calcified lesions, and vascular damage. Presence of a lesion and amount of plaque were underestimated angiographically. Only before PTA was good agreement found between angiographic diameter stenosis and lumen size on IVUS.
authors.affiliation: Department of Cardiology, University Hospital Rotterdam-Dijkzigt, Erasmus University Rotterdam, The Netherlands.
authors.forename: W
authors.initials: W
authors.lastname: van Lankeren
authors.forename: E J
authors.initials: EJ
authors.lastname: Gussenhoven
authors.forename: H
authors.initials: H
authors.lastname: Pieterman
authors.forename: M R
authors.initials: MR
authors.lastname: van Sambeek
authors.forename: A
authors.initials: A
authors.lastname: van der Lugt
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000792:Angiography; D000800:Angioplasty, Balloon; D001157:Arterial Occlusive Diseases / Q000175:diagnosis / Q000628:therapy*; 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*; D011184:Postoperative Period; D011237:Predictive Value of Tests; D011300:Preoperative Care; D012680:Sensitivity and Specificity; D018084:Ultrasonography, Interventional