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Encephalographs

Definition : Recorders designed to measure and record data and graphics of the physical and/or functional characteristics of the brain. Encephalographs are usually intended to record one or several of the following data and graphics: (1) electrical potential caused by the electrical activity of the brain (i.e., electroencephalographs); (2) electrical activity of the brain due to the application of external stimuli (evoked potentials); (3) biomagnetic field caused by the electrical activity of the brain neurons detected externally to the body (i.e., magnetoencephalographs); (4) ultrasonic signals reflected by the brain and surrounding tissues (i.e., echoencephalographs). Encephalographs are intended for evaluation of recorded information of the brain and central nervous system conditions; they are not intended for real-time assessment of those conditions. Other devices, such as neurologic monitors and image scanning systems (e.g., MRI, CT) are also used to evaluate brain conditions and disorders.

Entry Terms : "Recorders, Graphic" , "Recorders, Paper Chart" , "Recorders, Graphic, Encephalography" , "Recorders, Chart" , "Strip-Chart Recorders" , "Graphic Recorders" , "Chart Recorders"

UMDC code : 34560

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