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Journal of Diagnostic Medical Sonography
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Alternative Echocardiographic Methods to Assess Left Ventricular Diastolic Function

Alan D. Waggoner, MHS, RDCS

Cardiovascular Imaging and Clinical Research Core Laboratory, Barnes-Jewish Hospital Foundation, and Washington University School of Medicine, St. Louis, Missouri; Cardiovascular Division, Box 8086, Washington University School of Medicine, 660 S Euclid Avenue, St. Louis, MO 63110 waggonea{at}msnotes.wustl.edu

The standard noninvasive method to assess left ventricular diastolic function has been pulsed Doppler echocardiographic recordings of mitral inflow early diastolic (E) and atrial (A) filling velocities and the ratio of E to A, in combination with isovolumic relaxation and deceleration times. Pulmonary venous inflow velocities (systolic, diastolic, and atrial reversal) are used to assess left atrial and left ventricular end-diastolic pressures. These measurements are influenced by changes in preload, including left ventricular end-diastolic pressure, left atrial or pulmonary capillary wedge pressure, and left ventricular volumes. Newer methods such as tissue Doppler imaging (TDI) of the mitral annulus and color M-mode recording of left ventricular diastolic flow propagation (FP) have now evolved as additional techniques for detecting abnormalities in left ventricular diastolic function that can complement the standard pulsed Doppler echocardiography methods. Both TDI and color M-mode flow FP appear to offer distinct advantages as relatively load-independent measures of diastolic function. TDI can be used for measurement of regional diastolic myocardial velocities at the mitral annulus, and it is particularly useful in identifying abnormalities of left ventricular diastolic relaxation or estimation of left ventricular filling pressures. Color M-mode FP can be used for quantification of abnormalities of left ventricular relaxation and diastolic filling characteristics of the left ventricle.

Key Words: pulsed Doppler • tissue Doppler imaging • left ventricular diastolic function • left ventricular relaxation

Journal of Diagnostic Medical Sonography, Vol. 18, No. 4, 218-230 (2002)
DOI: 10.1177/875647930201800406
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