Pulsed Doppler Assessment of Tricuspid Regurgitation: Usefulness of Regurgitant Signal Patterns for Estimation of Severity

Carreras, F.; Borrás, X.; Augé, J. M.; Pons-Lladó, G.
September 1988
Angiology;Sep1988, Vol. 39 Issue 9, p788
Academic Journal
A study on the value of pulsed Doppler in the detection and quantitative assessment of tricuspid regurgitation (TR) has been conducted on 33 consecutive adult patients with valvular heart disease. Only 1 patient had to be excluded owing to a technically inadequate Doppler examination. Data for comparison were obtained from a right heart catheterization performed within a twentyfour- hour interval from the Doppler study. Sensitivity and specificity in the detection of the lesion were 88% and 100%, respectively. A previously undescribed pulsed Doppler method for the estimation of the degree of TR was tested, based on the consideration of two distinctive patterns of the regurgitant Doppler signal: type I: a protosystolic regurgitant signal with progressively fading intensity along systole; and type II: a homogeneously intense pansystolic signal. Correlation between these patterns and the angiographic degrees of TR showed that milder lesions correspond to the type I Doppler pattern, whereas significant regurgitations present a type II pattern, this allowing a clinically useful method of assessment of TR.


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