| Preliminary study of quantification of regurgitant volume in mitral regurgitation by color Doppler echocardiography. | |
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MedLine Citation:
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PMID: 2098580 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A method for quantification of regurgitant volume in mitral regurgitation (MR) was studied. 31 cases of MR were investigated with color Doppler. The reliability of measuring velocity by Doppler and the influence of pressure gradient on MR were assessed and confirmed by experimental device. The results suggested that the best method in quantification of the regurgitant volume was "calibrating method" (r = 0.99; P less than 0.01), the next to the best was "volume method" (r = 0.74; P less than 0.01), whereas the regurgitant volume evaluated by multiplication of area, velocity and time was far from the actual regurgitant volume (r = 0.47; P greater than 0.05). The velocity of blood flow measured by Doppler is closely correlated to results obtained from experiments (r = 0.69; P less than 0.05). We believe that the ratio of back flow area and average area of left atrium calculated by Helmcke's method reflects the severity of the disease to a certain degree, bu there are many problems unsolved, e.g. the determination of the velocity of blood flow by color Doppler is dependent on the degree of brightness of coloration; the brighter the color, the quicker the speed it represents, whereas the darker coloration speaks for slower speed. |
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Authors:
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J E Wang; X F Wang; Y Wu; G Hu |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of Tongji Medical University = Tong ji yi ke da xue xue bao Volume: 10 ISSN: 0257-716X ISO Abbreviation: J. Tongji Med. Univ. Publication Date: 1990 |
Date Detail:
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Created Date: 1991-07-31 Completed Date: 1991-07-31 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 8605495 Medline TA: J Tongji Med Univ Country: CHINA |
Other Details:
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Languages: eng Pagination: 230-5 Citation Subset: IM |
Affiliation:
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Institute of Cardiovascular Diseases, Xiehe Hospital, Tongji Medical University, Wuhan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Echocardiography, Doppler* Humans Mitral Valve Insufficiency / physiopathology*, ultrasonography Mitral Valve Prolapse / physiopathology, ultrasonography Rheumatic Heart Disease / complications |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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