Doppler echocardiographic measurement of low velocity motion of the left ventricular posterior wall

doi:10.1016/0002-9149(89)90655-3

The American Journal of Cardiology

Volume 64, Issue 1, 1 July 1989, Pages 66-75

https://doi.org/10.1016/0002-9149(89)90655-3 Get rights and content

Abstract

A new noninvasive method using pulsed Doppler echocardiography was developed to assess left ventricular (LV) posterior wall motion dynamics. Seventeen normal subjects and 23 patients undergoing cardiac catheterization were prospectively studied. The sample volume was placed within the LV posterior wall endocardium just apical to the mitral valve sulcus using a posteriorly angulated low parasternal view. The wall filter was set at 100 Hz to record the low velocities of the LV posterior wall motion. The Doppler signal was morphologically similar to the rate of change of the LV posterior wall endocardium excursion obtained by a digitized M-mode echocardlogram, and showed 3 major waves: a systolic wave (S), an early dlastolic wave (E) and a late diastolic wave (A). The peak velocities of LV posterior wall endocardium excursion were also determined by M-mode echocardlographic technique. We found a significant linear correlation between peak E-wave velocity and M-mode peak diastolic endocardial velocity (r = 0.90, p < 0.001) and between peak S-wave velocity and M-mode peak systolic endocardial velocity (r = 0.81, p < 0.001). M-mode peak systolic endocardial velocity showed an Important overlap between control subjects and patients with normal and patients with abnormal LV posterior wall motion on the angiogram. In contrast, peak S-wave velocity was a better discriminator, and a peak S-wave velocity <7.5 cm/s was associated with abnormal LV posterior wall motion with an 83% sensitivity, 100% specificity and 95% accuracy. In patients with coronary artery disease but normal systolic LV posterior wall motion and normal global systolic LV function, peak S-wave velocity was not different when compared to control subjects. Peak E-wave velocity and $E A$ were significantly lower than in control subjects (p < 0.01) and peak A-wave velocity was greater (p < 0.01). In conclusion, these data suggest that pulsed Doppler echocardiography can be used for the direct analysis of LV posterior wall instantaneous low velocities and appears to be more informative than M-mode technique for systolic measurements. Thus, detection of abnormal LV posterior wall diastolic motion by pulsed Doppler echocardiography may, upon additional confirmation, be used as a new noninvasive method to gain insight into global LV diastolic performance.

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^☆: This award was supported by Rhone-Poulenc-Sante Laboratories, Courbevoie, France.

¹: Dr. Isaaz is the recipient of the French Young Investigator Prize of the Fiftieth Anniversary of the French Cardiac Society.

²: At the present time, Dr. Isaaz is a research fellow at the Cardiovascular Research Institute of San Francisco, University of California, San Francisco, California, and is the recipient of a Fogarty International Award (1F05 TW04099-01) from the Department of Health and Human Services, Washington, DC.

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Doppler echocardiographic measurement of low velocity motion of the left ventricular posterior wall☆

Abstract

Am J Cardiol

Am J Cardioi

Am J Cardiol

J Biomech

Basic principles of ultrasound and Doppier effect

Blood velocity measurements using the Doppler effect of backscattered ultrasound

Pulsed and continuous wave Doppler in diagnosis and assessment of various heart lesions

Echocardiographic evaluation of cardiac chambers

American Heart Association Committee report. A reporting system on patients evaluated for coronary artery disease

Circulation