| Dynamic three-dimensional echocardiographic assessment of intracardiac blood flow jets. | |
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MedLine Citation:
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PMID: 7484861 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Transthoracic dynamic 3-dimensional reconstruction of the heart with tissue depiction has been proved to be feasible when using various methods of data acquisition. The same method can theoretically be applied to color Doppler flows to generate dynamic 3-dimensional images of intracardiac blood flow jets. To explore the feasibility of this approach, we studied 41 patients with various valvular disorders or intracardiac shunts. We acquired sequential 2-dimensional images along with color Doppler information using rotational scanning from a transthoracic or a subcostal window. Images were digitized and processed for 3-dimensional reconstruction using dedicated software. After adequate segmentation, the flow jets were displayed in 3 dimensions in a gray scale format. With use of this approach, 3-dimensional reconstruction of color Doppler flows was possible in all but 1 patient. Still frames allowed immediate appreciation of the shape of the jets, their location in the cardiac chambers, and their size related to that cavity. Dynamic display was even more striking by showing the flow in real time. Dynamic 3-dimensional images enabled visualization of flow jets in projections not available in conventional color flow Doppler, looking directly at the views of shunt and regurgitant flows, and also permitted 3-dimensional delineation of flow convergence zones. We conclude that dynamic visualization of various intracardiac flows in 3 dimensions using transthoracic echocardiography is possible. It provides a better understanding of the shape and size of the jets, and can potentially aid in flow quantification by displaying the actual shape of flow convergence regions. |
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Authors:
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A Delabays; L Sugeng; N G Pandian; T L Hsu; S J Ho; C H Chen; G Marx; S L Schwartz; Q L Cao |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The American journal of cardiology Volume: 76 ISSN: 0002-9149 ISO Abbreviation: Am. J. Cardiol. Publication Date: 1995 Nov |
Date Detail:
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Created Date: 1995-12-21 Completed Date: 1995-12-21 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0207277 Medline TA: Am J Cardiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1053-8 Citation Subset: AIM; IM |
Affiliation:
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Cardiovascular Imaging and Hemodynamic Laboratory, Tufts University School of Medicine, New England Medical Center, Boston, Massachusetts 02111, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Aged Aortic Valve Insufficiency / physiopathology, ultrasonography Child Child, Preschool Echocardiography, Doppler, Color* Feasibility Studies Heart / physiopathology* Humans Image Processing, Computer-Assisted* Infant Middle Aged Mitral Valve Insufficiency / physiopathology, ultrasonography Mitral Valve Stenosis / physiopathology, ultrasonography Regional Blood Flow Tricuspid Valve Insufficiency / physiopathology, ultrasonography |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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