Document Detail


Application of color Doppler M-mode echocardiography in the assessment of ventricular diastolic function: potential for quantitative analysis.
MedLine Citation:
PMID:  9476564     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Color Doppler M-mode echocardiography provides a spatiotemporal map of blood distribution (v(s,t)) within the heart, with a typical temporal resolution of 5 ms, a spatial resolution of 300 microns, and a velocity resolution of 3 cm/s. M-mode echocardiographic data can be obtained along a streamline from the mid-left atrium to the mid-left ventricle from either the apical transthoracic window or the basal transesophageal window. A key parameter of the color Doppler M-mode is the transmitral propagation velocity, the slope of the leading edge of the M-mode derived E-wave. This propagation velocity is significantly less than the velocities measured within the E-wave by pulsed Doppler echocardiography and appears to provide important independent information about left ventricular filling pressures and diastolic function. Furthermore, color M-mode velocities can be processed quantitatively by the Euler equation to yield estimates of the small (< 2 mmHg) pressure gradients between the base and apex during filling, the first time such gradients have been measured noninvasively.
Authors:
J D Thomas; M J Garcia; N L Greenberg
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Heart and vessels     Volume:  Suppl 12     ISSN:  0910-8327     ISO Abbreviation:  Heart Vessels     Publication Date:  1997  
Date Detail:
Created Date:  1998-04-07     Completed Date:  1998-04-07     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8511258     Medline TA:  Heart Vessels     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  135-7     Citation Subset:  IM    
Affiliation:
Department of Cardiology, Cleveland Clinic Foundation, OH 44195, USA.
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MeSH Terms
Descriptor/Qualifier:
Diastole*
Echocardiography, Doppler, Color*
Heart / physiology
Humans
Regional Blood Flow
Ventricular Function, Left*
Ventricular Pressure

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


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