title: The relation between quantitative right ventricular ejection fraction and indices of tricuspid annular motion and myocardial performance.
abstract: BACKGROUND
  Assessment of right ventricular (RV) function remains challenging because of complex RV chamber geometry and a paucity of easily derived and objective functional methods.
  
  
  METHODS
  Visual 2-dimensional echocardiographic estimates of RV ejection fraction (EF), tricuspid annular plane systolic excursion, Doppler tissue imaging, and myocardial performance index (MPI) were compared with biplanar Simpson's rule RV EF in 101 consecutive patients. Data were analyzed using simple linear regression and receiver operating characteristic curves.
  
  
  RESULTS
  RV EF was significantly correlated with tricuspid annular plane systolic excursion (r = 0.48, P <.0001), Doppler tissue imaging peak systolic velocity (r = 0.45, P <.0001), and MPI (r = -0.38, P =.006). Using a Simpson's RV EF < 50%, the sensitivity, specificity, and positive and negative predictive values of tricuspid annular plane systolic excursion < 1.5 cm were 59%, 94%, 71%, and 89%; of Doppler tissue imaging peak systolic velocity < 10 cm/s were 59%, 92%, 67%, and 89%; and of MPI < 0.40 were 100%, 35%, 29%, and 100%, respectively. The area under the receiver operating characteristic curves was similar for the 3 indices.
  
  
  CONCLUSIONS
  Measurements of tricuspid annular motion are easy to obtain, correlate with Simpson's RV EF, and have a high specificity and negative predictive value for detecting abnormal RV systolic function; and the MPI, although not specific, has high sensitivity and negative predictive value for detecting abnormal RV systolic function.
authors.affiliation: University Hospitals of Cleveland, Cleveland, Ohio 44106, USA.
authors.forename: Darryl
authors.initials: D
authors.lastname: Miller
authors.forename: Michel G
authors.initials: MG
authors.lastname: Farah
authors.forename: Anna
authors.initials: A
authors.lastname: Liner
authors.forename: Keith
authors.initials: K
authors.lastname: Fox
authors.forename: Mark
authors.initials: M
authors.lastname: Schluchter
authors.forename: Brian D
authors.initials: BD
authors.lastname: Hoit
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015150:Echocardiography, Doppler; D005260:Female; D006330:Heart Defects, Congenital / Q000503:physiopathology; D006349:Heart Valve Diseases / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction; D012680:Sensitivity and Specificity; D013318:Stroke Volume; D014261:Tricuspid Valve / Q000503:physiopathology*; D018487:Ventricular Dysfunction, Left / Q000000981:diagnostic imaging / Q000503:physiopathology; D018497:Ventricular Dysfunction, Right / Q000000981:diagnostic imaging* / Q000503:physiopathology