Assessment of right ventricular function with Doppler echocardiographic indices derived from tricuspid annular motion: comparison with radionuclide angiography.
OBJECTIVE
To assess right ventricular systolic function using indices derived from tricuspid annular motion, and to compare the results with right ventricular ejection fraction (RVEF) calculated from radionuclide angiography.


METHODS
Pulsed Doppler echocardiography indices were obtained from 10 patients with a normal RVEF (group 1) and from 20 patients whose RVEF was less than 45% (group 2).


RESULTS
The patients in the two groups were similar in age, systolic blood pressure, and heart rate. There was a close correlation between the tricuspid annular motion derived indices (D wave integral (DWI), peak velocity of D wave (PVDW), and tricuspid plane systolic excursion (TPSE)) and RVEF (r = 0.72, 0.82, and 0.79, respectively). DWI was significantly higher in group 1 than in group 2. PVDW discriminated adequately between individuals with abnormal and normal right ventricular ejection fraction. The sensitivity and specificity of tricuspid annular motion derived indices were very good.


CONCLUSIONS
Indices derived from tricuspid annular motion appear to be important tools for assessing right ventricular systolic function.
Department of Internal Medicine, Discipline of Cardiology, University of Campinas School of Medicine, Campus Universitario "Zeferino Vaz", 13083-970 Campinas, São Paulo, Brazil.
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Ueti
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Camargo
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Ade A
Ueti
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de Lima-Filho
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Nogueira
D000328:Adult; D000368:Aged; D003971:Diastole; D015150:Echocardiography, Doppler / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011875:Radionuclide Angiography / Q000379:methods; D012044:Regression Analysis; D013318:Stroke Volume / Q000502:physiology; D014261:Tricuspid Valve / Q000000981:diagnostic imaging / Q000502:physiology*; D016278:Ventricular Function, Right / Q000502:physiology*