title: [Comparison of coronary angiography with intravascular ultrasound imaging].
abstract: OBJECTIVE
  To compare coronary angiography (CAG) and intravascular ultrasound (IVUS).
  
  
  METHODS
  One hundred and twenty-five patients with typical angina who underwent CAG and IVUS were divided into stable angina group (Group SA) and unstable angina group (Group UA). Angiographic feature and ultrasound imaging were compared the two groups.
  
  
  RESULTS
  Coronary angiography showed no significant differences in the diseased artery and the degree of stenosis between the 2 groups. Intravascular ultrasound revealed that there were significantly more soft lesions in group UA than in Group SA, and that fibrous and calcific lesions were more prevalent in Group SA. Spontaneous dissection and thrombus were more frequently found in Group UA than in group SA.
  
  
  CONCLUSIONS
  IVUS is superior to CAG for studying characteristics of coronary atherosclerotic plaque. IVUS is more important than CAG in selecting indications of coronary artery interventional operation.
authors.affiliation: Institute of Biomedical Engineering,Central South University, Changsha 410008, China. yxli@fxyyy.com
authors.forename: Xi-Li
authors.initials: XL
authors.lastname: Yang
authors.forename: Chang-Hua
authors.initials: CH
authors.lastname: Xiao
authors.forename: Jian-Min
authors.initials: JM
authors.lastname: Li
authors.forename: Hai-Bin
authors.initials: HB
authors.lastname: Tan
authors.forename: Jie-Yuan
authors.initials: JY
authors.lastname: Li
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000787:Angina Pectoris / Q000000981:diagnostic imaging*; D017023:Coronary Angiography; D003331:Coronary Vessels / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D018084:Ultrasonography, Interventional