Document Detail

Detection and visualization of regurgitant flow in valvular diseases by pulsed Doppler technique.
MedLine Citation:
PMID:  7087154     Owner:  NLM     Status:  MEDLINE    
Regurgitant flows in valvular diseases were evaluated by a pulsed Doppler flowmeter combined with an electronic beam sector scanning echocardiograph. The apparatus which was newly developed by us allowed the simultaneous demonstration of a sample site on a two-dimensional echocardiogram with flow measurement. Doppler signals of regurgitant flow were recorded as uni-directional or bi-directional wide frequency band signals. The locations, where regurgitant flow signals were detected, were depicted on the corresponding two-dimensional echocardiogram. This procedure was referred to as "a flow mapping technique" for non-invasive visualization of the distribution of regurgitant flow. In 12 patients with mitral regurgitation due to mitral valve prolapse detected by the pulsed Doppler technique, the regurgitant flow was distributed to the opposite side of the prolapsing mitral leaflet. The transmission of the regurgitant murmur was well consistent with the direction of the regurgitant flow. In 14 patients with aortic regurgitation, the distribution of aortic regurgitant flow visualized by the flow mapping technique closely coincided with that obtained by cineaortography. Based on the distribution of the regurgitation, the severity of the regurgitation could be precisely evaluated by the Doppler technique. Regurgitant flow signals were detected in the right atrium in all 13 patients with tricuspid regurgitation diagnosed by right ventriculography. We found 4 patients who did not show Carvallo's sign but in whom were detected regurgitant flow signals by the Doppler technique. In all of them, tricuspid regurgitation was proven at surgery. These results indicate that the Doppler technique presented here has an obvious clinical advantage in detecting and evaluating regurgitant flow in valvular diseases.
H Matsuo; H Morita; S Senda; A Kitabatake; M Asao; J Tanouchi; M Mishima; H Abe
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Japanese circulation journal     Volume:  46     ISSN:  0047-1828     ISO Abbreviation:  Jpn. Circ. J.     Publication Date:  1982 Apr 
Date Detail:
Created Date:  1982-08-26     Completed Date:  1982-08-26     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7806868     Medline TA:  Jpn Circ J     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  377-88     Citation Subset:  IM    
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MeSH Terms
Aortic Valve Insufficiency / diagnosis,  physiopathology
Coronary Circulation*
Doppler Effect
Echocardiography / methods
Heart Valve Diseases / diagnosis*,  physiopathology
Middle Aged
Mitral Valve Insufficiency / diagnosis,  physiopathology
Tricuspid Valve Insufficiency / diagnosis,  physiopathology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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