Stress Doppler echocardiography
Perhaps the most serious intervention a cardiologist can recommend to patients under his care is cardiac surgery. Doppler ultrasound has proven merit in identifying patients with critical mitral and aortic stenosis, as well as severe aortic regurgitation who may warrant such intervention [1, 2, 3]. However, the most common complaint that patients bring to a clinical cardiologist is that of chest pain, mandating that the presence and severity of coronary artery disease be established. It is the purpose of this chapter to introduce the emerging role of Doppler ultrasound in the identification and classification of patients with coronary artery disease by stress testing. The merit of Doppler examination during stress testing lies in the ability to quanitate ventricular function by noninvasive measurement of velocity, acceleration, and volume of blood leaving the left ventricle during systolic ejection.
KeywordsPeak Velocity Ejection Velocity Suprasternal Notch Stroke Distance Supine Bicycle Exercise
Unable to display preview. Download preview PDF.
- 4.Rudewal B: Hemodynamic of the human ascending aorta as studied by of a differential pressure technique. Acta Physiol Scand 54 (Suppl. 187): 1, 1962.Google Scholar
- 8.Noble MIM, Trechard D, Guz A: Left ventricular ejection in conscious dogs: Measurement and significance of the maximum acceleration of blood from the left ventricle. Circ Res 19:139, 1966.Google Scholar
- 14.Teague SM: Measurement of ventricular function using Doppler ultrasound. In: Kisslo JA ed. Basic Doppler Echocardiography. New York, Churchill Livingstone Publishers, pp. 65–70, 1985.Google Scholar
- 15.Stein PD, et al.: Blood velocity and acceleration: Comparison of CW Doppler and electromagnetic flowmetry. Federation Proceedings 44 (5): 1565, 1985.Google Scholar
- 20.Teague SM, Mark DB, Radford M, Robertson J, Albert D, Porter J, Waugh RA: Doppler velocity profiles reveal ischemic exercise responses. Circulation 70 (Supp. II): 185, 1984.Google Scholar
- 21.Teague SM, Mark DB, Radford M, Robertson J, Albert D, Waugh RA: Doppler ejection dynamics during ischemic exercise responses. Circulation 72 (Supp. III): 448, 1985.Google Scholar