Echocardiography

(redirected from echocardiograph)
Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to echocardiograph: echogram, echocardiography, echocardiogram

echocardiography

[‚ek·ō‚kärd·ē′äg·rə·fē]
(medicine)
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.

Echocardiography

 

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.

REFERENCE

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

N. M. MUKHARLIAMOV

References in periodicals archive ?
Our patient had neither myocarditis nor left ventricular dysfunction, as demonstrated by pulmonary artery catheterization results, echocardiograph results, and serum troponin levels.
The Welsh Government has opted to plough additional money for sensory equipment, an anaesthetic machine, specialist beds and cots, a second X-ray machine, an echocardiograph machine and ventilators for the children's critical care unit.
If their saturation is [less than or equal to] 97%, further evaluation for HPS should be conducted with a contrast-enhanced echocardiograph (unpublished observation).
Also supported in this release are DICOM Structured Reporting standards for echo and vascular procedures and single-click integration with the leading advanced visualization tools including TomTec for 3D/4D echocardiograph and both Vital Imaging and Tera Recon for cardiac CT angiography.
The cash went towards the PS37,000 total needed to pay for the echocardiograph, which was installed at the hospital in July 1982.
All participants underwent transthoracic echocardiography by means of an echocardiograph equipped with a broadband transducer (Vivid 7[R], GE VingMed Ultrasound AS; Horten, Norway).
Results of clinical examination and all investigations (chest radiograph, transesophageal echocardiograph, 3 blood cultures, urine analysis, and Legionella urinary antigen test) did not identify an infectious agent, and antimicrobial drug treatment was stopped after 24 hours.
Impairment of right ventricular distensibility was found on echocardiograph examinations during right lateral positioning.
The event was organised to raise money for a portable echocardiograph machine for the Heart Unit at Birmingham Children's Hospital.
The Echocardiograph Ultrasound machine has been installed at the University hospital of North Tees's Cardio-respiratory unit, in Stockton, the third of its kind in their department.
When he finished repairing the echocardiograph, he was asked to volunteer for an echocardiogram to be sure the machine was working properly, and the defect was found.