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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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Although common clinical and echocardiographic findings were similar in both heparin and thrombolytic groups, only one of two patients were received thrombolytic therapy.
The use of a pre-admission screening questionnaire is a tool designed to maximise efficiency so that the relevant echocardiographic information is available to the anaesthetists when they assess the patient and also to reduce the number of potentially inappropriate TTE studies performed.
Log-transformation was used for NT-proBNP levels to achieve normality in distribution, spearman's correlation coefficient as a statistical method, used to correlate echocardiographic parameters with NT-proBNP levels.
Echocardiographic assessment of the left ventricle of endurance athletes just before and after exercise,Am J Cardiol.
All baseline clinical characteristics, echocardiographic parameters and other procedural details were collected.
Seventy-three patients had an echocardiographic diagnosis of anterior wall MI; of that group, 24 were excluded: 3 because no ECG was found; 4 because of complete left bundle branch block; 1 because of right ventricular-paced rhythm; and 16 because of the absence of anterior Q waves and the predefined poor R-wave progression.
Standard transthoracic echocardiographic examinations to measure end-diastolic LV dimensions were performed as recommended by the American Society of Echocardiography (Sahn et al.
Echocardiographic abnormalities in normotensive obese patients: relationship with visceral fat.
One of the four patients with clinically significant valvular regurgitation had improvement of the echocardiographic findings 7 months after discontinuing pergolide.
The technological advancements of echocardiographic imaging, particularly transesophageal echocardiography, have made antemortem diagnosis possible.
Echocardiographic annals analysis of 4,111 subjects in the CARDIA study.