title: Peripheral vascular occlusive disease: evaluation with contrast-enhanced moving-bed MR angiography versus digital subtraction angiography in 106 patients.
abstract: OBJECTIVE
  The purpose of our study was to compare contrast-enhanced moving-bed MR angiography and digital subtraction angiography in the evaluation of peripheral vascular occlusive disease.
  
  
  METHODS
  This retrospective report includes 106 patients (45 women, 61 men) with known or suspected peripheral vascular occlusive disease who underwent MR angiography and intraarterial digital subtraction angiography of the peripheral arteries. MR angiography was performed on a 1.0-T unit using a moving-bed technique. Every leg was divided into 14 vascular segments, and severity of disease was scored in four categories. Digital subtraction angiography was the standard of reference.
  
  
  RESULTS
  In the 106 patients, 2378 vessel segments were evaluated with both imaging modalities. In 2156 segments, MR angiography and digital subtraction angiography were concordant for stenosis classification, in 188 segments the two modalities differed in one category, and in 24 segments they differed in two categories. MR angiography achieved sensitivity and specificity of 96.7% and 95.8%, respectively, for differentiating nonsignificant from hemodynamically significant stenosis (kappa = 0.91).
  
  
  CONCLUSIONS
  This study indicates that MR angiography is an accurate imaging modality in clinical practice. Our data support the concept that MR angiography can modify the diagnosis of suspected peripheral vascular occlusive disease.
authors.affiliation: Department of Radiology, Section of Angiography and Interventional Radiology, University of Vienna, Waehringer Guertel 18-20, A-1090 Vienna, Austria.
authors.forename: Christian
authors.initials: C
authors.lastname: Loewe
authors.forename: Maria
authors.initials: M
authors.lastname: Schoder
authors.forename: Thomas
authors.initials: T
authors.lastname: Rand
authors.forename: Udo
authors.initials: U
authors.lastname: Hoffmann
authors.forename: Johannes
authors.initials: J
authors.lastname: Sailer
authors.forename: Thomas
authors.initials: T
authors.lastname: Kos
authors.forename: Johannes
authors.initials: J
authors.lastname: Lammer
authors.forename: Siegfried
authors.initials: S
authors.lastname: Thurnher
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015901:Angiography, Digital Subtraction; D001157:Arterial Occlusive Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D003287:Contrast Media; D005260:Female; D006801:Humans; D007866:Leg / Q000098:blood supply*; D018810:Magnetic Resonance Angiography; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D012189:Retrospective Studies; D012680:Sensitivity and Specificity
chemical_list: D003287:Contrast Media