title: Popliteal vascular disease: evaluation with spiral CT angiography.
abstract: OBJECTIVE
  To evaluate the potential role of spiral computed tomographic (CT) angiography in the diagnosis of popliteal artery disease.
  
  
  METHODS
  In 26 consecutive patients referred for popliteal arteriography, the authors performed additional spiral CT angiography with the following protocol: 3-5-mm collimation, 4-6 mm/sec table speed, and 2-3-mm overlap during 32 seconds, with use of 110 mL of contrast medium. Axial transverse sections and shaded surface display and multiplanar reformation reconstruction images were analyzed. All patients underwent previous Doppler ultrasound examination.
  
  
  RESULTS
  In the 52 arteries imaged, arteriography showed 14 isolated hemodynamically significant (>50% diameter reduction) stenoses (due to popliteal artery entrapment in one case), four occluded arteries, and 11 aneurysms. CT angiography also demonstrated these 14 stenoses and four occlusions. However, axial transverse views at CT angiography showed that eight of the stenoses were associated with other abnormalities (aneurysm in six, popliteal artery entrapment syndrome in one, and cystic adventitial disease in one) and that two of the occlusions resulted from popliteal artery entrapment syndrome (n = 1) and thrombosis of an aneurysm (n = 1). CT angiography also demonstrated the 11 aneurysms shown with arteriography.
  
  
  CONCLUSIONS
  Popliteal artery lesions can be diagnosed with spiral CT angiography, which provides detailed information on the wall and diameter of the artery and relation of the artery to adjacent structures.
authors.affiliation: Department of Vascular Radiology, Hôpital Cardiologique, Centre Hospitalier Regional Universitaire de Lille, France.
authors.forename: J P
authors.initials: JP
authors.lastname: Beregi
authors.forename: M
authors.initials: M
authors.lastname: Djabbari
authors.forename: F
authors.initials: F
authors.lastname: Desmoucelle
authors.forename: S
authors.initials: S
authors.lastname: Willoteaux
authors.forename: L
authors.initials: L
authors.lastname: Wattinne
authors.forename: S
authors.initials: S
authors.lastname: Louvegny
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000783:Aneurysm / Q000000981:diagnostic imaging; D000792:Angiography; D001161:Arteriosclerosis / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011150:Popliteal Artery / Q000000981:diagnostic imaging*; D013927:Thrombosis / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014652:Vascular Diseases / Q000000981:diagnostic imaging