单词	echoencephalograph
释义	echoencephalograph /ˌekōənˈsefələɡraf / (abbreviation EEG) noun An instrument used to examine the skull and brain by means of reflected ultrasonic waves as part of a painless and noninvasive procedure.This echoencephalograph applies an ultrasonic pulse to the patient's head; the pulse travels to a predetermined structure and is partially reflected as an echo pulse. Derivatives echoencephalographic /-ˌsefələˈɡrafik/ adjective ... Midline structures were unshifted by echoencephalographic data. The clinical, electroencephalographic and echoencephalographic data to all 29 neonates that were treated during a four years period are presented.
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