ECHOENCEPHALOGRAPHY

ech·o·en·ceph·a·lo·graph   (ěk'ō-ěn-sěf'ə-lə-grāf', -ə-lō-)    n.  An instrument that in a painless and noninvasive manner uses the differential transmission and reflection of ultrasonic waves to create a detailed visual image of the brain. ech'o·en·ceph'a·lo·graph'ic adj., ech'o·en·ceph'a·log'ra·phy (-lŏg'rə-fē) n.

Main Entry: echo·en·ceph·a·log·ra·phy
Pronunciation: -in-"sef-&-'läg-r&-fE
Function: noun
Inflected Form: plural -phies
: the use of ultrasound to examine and measure internal structures (as the ventricles) of the skull and to diagnose abnormalities and disease —echo·en·ceph·a·lo·graph·ic /-"sef-&-l&-'graf-ik/ adjective

echoencephalography ech·o·en·ceph·a·log·ra·phy (ěk'ō-ěn-sěf'ə-lŏg'rə-fē)
n.
The use of reflected ultrasound to create a detailed visual image of the brain.

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ech'o·en·ceph'a·lo·graph' (-lə-grāf', -lō-)
ech'o·en·ceph'a·lo·graph'ic adj.

echoencephalography

method for detecting abnormalities within the cranial cavity, based on the reflection of high-frequency sound pulses delivered to the head through a probe held firmly to the scalp. The reflected pulses from the skin, brain ventricle, skull, and other head structures are recorded and amplified with a cathode-ray oscilloscope, giving a measure of the distance between the probe and the reflecting surfaces. The method is rapid, painless, and harmless; it is a good screening test for mass lesions causing brain shift and is well adapted for emergency examination of patients with brain hemorrhage. See also brain scanning.

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