| ECHO | echocardiography; enteric cytopathic human orphan [virus]; Etoposide, cyclophosphamide, Adriamycin, ... |
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| EchoCG | echocardiography |
| MCE | medical care evaluation; military clinical engineering; multicystic encephalopathy; multiple cartila... |
| MME | M-mode echocardiography; mobile medical equipment; mouse mammary epithelium |
| NCE | negative contrast echocardiography; new chemical entity; nonconvulsive epilepsy |
| echocardiography, doppler, pulsed | Echocardiography applying the doppler effect, with velocity detection combined with range discrimination. Short bursts of ultrasound are transmitted at regular intervals and the echoes are demodulated as they return. (12 Dec 1998) |
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| echocardiography, four-dimensional | Dynamic three-dimensional echocardiography using the added dimension of time to impart the cinematic perception of motion. (mayo clin proc 1993;68:221-40) (12 Dec 1998) |
| echocardiography, three-dimensional | Echocardiography amplified by the addition of depth to the conventional two-dimensional echocardiography visualizing only the length and width of the heart. Three-dimensional ultrasound imaging was first described in 1961 but its application to echocardiography did not take place until 1974. (mayo clin proc 1993;68:221-40) (12 Dec 1998) |
| echocardiography, transesophageal | Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues using a transducer placed in the oesophagus. (12 Dec 1998) |