title: [Comparative characteristics of the possibilities of imaging techniques (magnetic resonance imaging and 3D ultrasound study) in the qualitative estimation of atherosclerotic plaque volume].
abstract: OBJECTIVE
  To estimate the possibilities of using three-dimensional ultrasound study (3D USS) in the diagnosis of the sizes and structure of an atherosclerotic plaque (ASP).
  
  
  METHODS
  The data obtained by examination of 20 heterogeneous ASPs in the carotid artery wall, by applying 3D USS and magnetic resonance imaging (MRI), were compared. Intra- and interoperator reproducibilities were assessed by the Bland-Altman method; the volume of each plague was measured by two (contour and ellipse) methods. The contour method was used to estimate all plagues; the ellipse method was applied to 13 of the 20 plagues, which was due to the shape of ASPs that rarely had an ellipsoid shape.
  
  
  RESULTS
  Intra- and interoperator reproducibilities in ASP volume estimation by 3D USS was as follows: with the use of contour and ellipse algorithms, the coefficient of variation was 7.72 and 3.77%, respectively; with these algorithms, the interoperator reproducibility was 8.18 and 6.21%, respectively; the derived values were not greater than those allowed for medical studies (10%). The coefficients of variations for MRI in the estimation of ASP sizes were significantly higher for inter- and intrareproducibilities (68.82 and 43.4%, respectively).
  
  
  CONCLUSIONS
  The results of this investigation agree with thedata available in the literature and support that 3D USS is an effective diagnostic me-hod in evaluating the magnitude of an ather-sclerotic process.
authors: M V
authors: MV
authors: Koshurnikova
authors: E Iu
authors: EIu
authors: Strazden'
authors: D V
authors: DV
authors: Ustiuzhanin
authors: M I
authors: MI
authors: Tripoten'
authors: M A
authors: MA
authors: Shariia
authors: T V
authors: TV
authors: Balakhonova
authors: Iu A
authors: IuA
authors: Karpov
mesh_terms: D000328:Adult; D000465:Algorithms; D002339:Carotid Arteries / Q000473:pathology*; D057186:Comparative Effectiveness Research; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D058226:Plaque, Atherosclerotic / Q000175:diagnosis*; D012044:Regression Analysis; D015203:Reproducibility of Results; D014463:Ultrasonography / Q000379:methods*