title: [Comparison of characteristics of atherosclerotic plaques in patients with acute coronary syndrome and stable ischemic heart disease: data of multispiral computed tomography].
abstract: OBJECTIVE
  To elucidate possibilities of multispiral computed tomography (MSCT) for assessment of morphology of atherosclerotic plaques in coronary arteries of patients with acute coronary syndrome (ACS) or stable ischemic heart disease (SIHD).
  
  
  METHODS
  Assessment of internal relief of coronary arteries and composition of atherosclerotic plaques was carried out in 85 patients with ACS and 41 patients with SIHD. MSCT was performed with the use of computed tomograph. Visual assessment included determination of plaque type (calcified, soft, and heterogeneous) and contour (regular, irregular). Quantitative assessment included determination of plaque density and index of remodeling.
  
  
  RESULTS
  Among patients with ACS we found 194 plaques (60--soft, 72--heterogeneous, and 62--calcified). Plaques in symptom related compared with non-symptom related arteries had higher index of remodeling (1.4 +/- 0.3 and 1.2 +/- 0.2, respectively, p < 0.0001), and more frequently had irregular contour (60.0 and 12.8%, respectively, p < 0.0005). Soft plaques and plaques with irregular contour prevailed in ACS group (68.0%) while calcified plaques were more frequent in SIHD group (66.4%). Plaques with irregular contour were more frequent and index of remodeling was higher in ACS compared with SIHD group (33.5 vs 7.2%, p < 0.0005, and 1.3 +/- 0.2 vs 1.0 +/- 0.2, p < 0.001, respectively).
  
  
  CONCLUSIONS
  According to MSCT data main characteristics of atherosclerotic plaques in patients with ACS were low density and inclusions of microcalcinates. Specific features of plaques in symptom related arteries were irregular contour and positive remodeling index.
authors.forename: T N
authors.initials: TN
authors.lastname: Veselova
authors.forename: I N
authors.initials: IN
authors.lastname: Merkulova
authors.forename: N A
authors.initials: NA
authors.lastname: Barysheva
authors.forename: S K
authors.initials: SK
authors.lastname: Ternovoĭ
authors.forename: M A
authors.initials: MA
authors.lastname: Shariia
authors.forename: M Ia
authors.initials: MIa
authors.lastname: Ruda
mesh_terms: D054058:Acute Coronary Syndrome / Q000175:diagnosis / Q000503:physiopathology; D000368:Aged; D060050:Angina, Stable / Q000175:diagnosis / Q000503:physiopathology; D017023:Coronary Angiography / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D061330:Multidetector Computed Tomography / Q000379:methods; D062072:Patient Acuity; D058226:Plaque, Atherosclerotic / Q000000981:diagnostic imaging*; D013223:Statistics as Topic