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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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



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.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
In the present study, we observed that the LV conventional echocardiographic measurements were similar between the patients with SSc and HC.
In addition echocardiographic assessment of mitral valve area with planimetery and transvalvular gradient as well as degree of mitral regurgitation was done.
2) Incomplete echocardiographic diagnosis: Any missing information from the above description and/or discrepancy between the echocardiographic description and diagnosis made on cardiac CT angiography or direct observation during surgery.
Table-1: Baseline characteristics, echocardiographic and laboratory findings.
There was a significant difference between the groups (baseline clinical and biochemical and echocardiographic parameters).
Left ventricular thrombus following acute myocardial infarction: a prospective serial echocardiographic study of 96 patients.
The aim of our study was to determine the short term and three months' echocardiographic outcomes of percutaneous mitral balloon valvotomy in patients with mitral stenosis with low Wilkin's score in a medical teaching institution.
Literature on echocardiographic changes in pregnant patients with prosthetic valves is even more limited [7].
Serial echocardiographic assessments provide little incremental prognostic information over clinical presentation or biomarkers in patients with ADHF [20].
[8] described a case of isolated IVC dilatation in which the authors reported "normal" RAP in the setting of abnormal echocardiographic IVC index (dilated IVC (2.4 cm) with reduced collapsibility).
Cageside echocardiographic evaluation gives the veterinarian detailed information about the disease and direct diagnose and treatment of the emergency patient (TSE et al., 2013).
However, the target population for the identification of the prevalence of congenital heart diseases is frequently children and juveniles, and the information about adults is rare.[sup][2],[3] Some studies have been carried out in hospitals for specific diseases, such as pulmonary hypertension, but they did not adequately represent the real world.[sup][4] To the best of our knowledge, echocardiographic data about healthy Tibetans on a large scale are not available.