OBJECTIVE--To study the prevalence and the characteristics of physiological valve
regurgitation. DESIGN--Pulsed wave Doppler echocardiography, continuous wave Doppler …

To assess the prevalence and flow characteristics of valvular regurgitation detected by
Doppler echocardiography in normal subjects, pulsed and continuous wave Doppler studies …

To determine prospectively the prevalence of mitral, aortic, tricuspid, and pulmonary
regurgitation in normal persons, 211 consecutive, apparently healthy volunteers were …

Echo Doppler techniques have revolutionised the non-invasive investigation of valvular
heart disease and have become widely accepted and used as part of modem clinical …

The prevalence of valvular regurgitation in a large population with structurally normal hearts
remains unknown. From the computer database of the echocardiography laboratory of the …

See p 840 availability of a new tool itis incumbent on clinical investigators to develop
guidelines for defining the normal range of findings. Many recent studies have suggested …

Aim: To evaluate, by colour-Doppler echocardiography, the effects of ageing on the
continence of the heart valves in patients with normal hearts. Methods: We reviewed all the …

OBJECTIVE--To assess the usefulness of pulsed Doppler echocardiography as a method of
measuring the regurgitant fraction in patients with mitral regurgitation. PATIENTS AND …

Since the advent of the Doppler color flow echocardiography, the presence of a small
degree of insufficiency of the cardiac valves has been detected with relative frequency in …

In an attempt to develop a new approach to the non-invasive measurement of mitral
regurgitation, Doppler echocardiography and left ventriculography were performed in 20 …