Automatic evoked potential detection

Details Automatic evoked potential detection Automatic evoked potential detection

1982-07-20

1985-01-15

Howell, Kyle L.

Surgery

Truss

Pad

364417, A61B 504

Patent

active

044933274

ABSTRACT:
Disclosed are a method and a system for determining if a patient's brain electrical activity reflects a significant evoked response to a sensory stimulus. A test measure of the difference between two sets of averaged waveforms, one in the absence and another in the presence of the stimulus, is derived on the basis of (i) mean values of spectral measures of the two sets and (ii) the variance of these spectral measures. This test measure is matched against acceptance and rejection levels which are defined on the basis of both (i) the number of averaged waveforms in each set and (ii) the desired degree of probability of avoiding false positive or false negative results.

REFERENCES:
patent: 3901215 (1975-08-01), John
patent: 4214591 (1980-07-01), Sato et al.
patent: 4275744 (1981-06-01), Thornton et al.
patent: 4408616 (1983-10-01), Duffy et al.
Boston, J. R., Younger, C. A., "Spectral Estimates of Auditory Brainstem Responses", Third Annual Symp. on Comp. Appl. in Med., IEEE Wash. D.C., Oct. 14-17, 1979, pp. 691`4 696.

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