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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.


References in periodicals archive ?
The result of these studies also showed that the safety profiles of contrast echocardiography and non-contrast echocardiography were similar in patients with known or suspected cardiac disease in a broad range of outpatient and inpatient care settings.
Contrast echocardiography may be a useful non-invasive technique for detecting PAVM and the interferon alpha may be first treatment option for patients with IHHE and PAVM.
Small number of our patient sample and lack of certain diagnostic approaches such as magnetic resonance imaging and myocardial contrast echocardiography in addition to angiographic examination in establishing no-reflow phenomenon in our patients were the limitations of this present study.
With contrast echocardiography, a contrast agent consisting of micro bubbles smaller than red blood cells is injected into a peripheral vein and passes through the patient's lung to the left ventricle of the heart.
This activity is designed for cardiologists, sonographers, nurses, cardiology fellows, and other healthcare professionals interested in diastology, new echocardiographic technologies, contrast echocardiography, and heart valve disease.
In patients treated before the introduction of intraprocedural myocardial contrast echocardiography the main reason for unsatisfactory gradient reduction was suboptimal scar placement (74, 77).
Committed to contrast echocardiography research for more than a decade, ATL is working closely with contrast manufacturers and clinical researchers around the world to develop ultrasound techniques that enhance contrast agent visualization and make procedures more efficient.
Contrast echocardiography is not needed and should be avoided for detection of the interatrial shunt in pregnant women (8).
June 24 /PRNewswire/ -- A record number of medical professionals gathered for the Fourth Annual Symposium on Contrast Echocardiography on June 12, 1999 in Washington, DC to hear the latest findings in state-of-the-art research on contrast echocardiography.
Some possible explanations include more accurate, faster diagnoses leading to better patient management decisions, and/or the avoidance of other potentially higher-risk or invasive tests that become unnecessary after contrast echocardiography.
In the study, researchers combined contrast echocardiography using Definity with power harmonic Doppler, dual gating and digital subtraction to further enhance image interpretation.
Study Finds Decrease in Percentage of Uninterpretable and Technically Difficult Studies with Contrast Echocardiography