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A diagnostic technique for the heart that uses a transducer held against the chest to send high-frequency sound waves which pass harmlessly into the heart; as they strike structures within the heart, they are reflected back to the transducer and recorded on an oscilloscope.



a method of examining the heart by means of ultrasound. Echocardiography is based on the recording of ultrasonic waves reflected from the surfaces of heart structures differing in density. Under normal conditions, curves are recorded successively from the walls of the aorta and left atrium, the anterior and posterior cusps of the mitral valve, the interventricular septum, and the posterior wall of the left ventricle.

Echocardiography is used to diagnose acquired and, to a lesser extent, congenital valvular diseases. It helps determine the condition of the cusps and the extent of narrowing of the valve openings; it identifies defects in the septa, large transposed blood vessels, and hypoplasia. Echocardiology is also used to diagnose pericarditis with effusion, tumors, and other abnormal conditions. The procedure is used to measure the volume, wall thickness, and mass of the muscular layer of the left ventricle; the stroke volume; and some other parameters of the blood circulation. By combining echocardiography and ultrasonic scanning one can obtain successive images of heart structures that reflect their dynamics during systole and diastole.


Kardiologiia, 1974, no. 1, pp. 82–86; 1976, no. 6, pp. 15–25.


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A noninvasive bedside technique for evaluating acute coronary syndromes, myocardial contrast echocardiography (MCE) provides a simultaneous assessment of regional wall motion and myocardial perfusion using microbubble contrast agents.
Real-time myocardial contrast echocardiography for pharmacologic stress testing: is quantitative estimation of myocardial blood flow reserve necessary?
The results of the arterial blood gas levels and 2D contrast echocardiography in patients of liver cirrhosis were correlated and statistically analyzed.
A review of the safety data from these trials showed that the safety profiles of contrast echocardiography and non-contrast echocardiography were similar.
Routine use of 2-D myocardial contrast echocardiography (MCE) in the ER would cut the huge national cost of evaluating patients with chest pain.
This QUEST Comparative Effectiveness & Innovation Program study tests the hypothesis that the appropriate use of DEFINITY[R] contrast echocardiography in critically ill patients can reduce the need for additional testing and hospital resources while maintaining the highest standards of healthcare, when compared with non-contrast echocardiography," said Mark G.
5Waggoner AD, et al, Guidelines for the cardiac sonographer in the performance of contrast echocardiography.
We suspected the drainage of subdiaphragmatic venous return to persistent SVC and absence the hepatic segment of IVC by agitated saline contrast echocardiography, and confirmed the diagnosis by multidetector CT.
Findings Showed No Significant Changes in Pulmonary Artery Hemodynamics in Patients With Normal or Elevated Pulmonary Artery Pressure Undergoing Contrast Echocardiography With DEFINITY([R])