[Automated assessment of cranial nerve paralyses using computerized electromyography].
Until the formulae of Lindstrom et al. the automatic analysis of electromyograms had no empirical basis in the differentiation of neurapraxia and degenerative paralysis. The EMG-analysis computer program modified by Berg et al. was used for the evaluation of average power spectra derived with a Fast Fourier transformation on 37 patients with known neurapraxia and 54 with proven degeneration. In order to work out a characteristic function we calculated average power spectra separately for each type of paralysis (facial or laryngeal muscles). The resulting spectrum configurations and their absolute values (root-mean-square and central frequency) were compared, and their value in automated EMG analysis was analysed. The results provide a basis for the routine use of the computer program in routine clinical diagnosis.
Thumfart
W F
WF
Universitäts-HNO-Klinik Köln.
Pototschnig
C
C
Simandi
T
T
D004576:Electromyography / Q000295:instrumentation*; D005071:Evoked Potentials; D005154:Facial Nerve / Q000503:physiopathology; D005158:Facial Paralysis / Q000503:physiopathology*; D006801:Humans; D007823:Laryngeal Nerves / Q000503:physiopathology; D008905:Minicomputers; D012815:Signal Processing, Computer-Assisted; D012984:Software; D014826:Vocal Cord Paralysis / Q000503:physiopathology*
Automatisierte Differenzierung von Hirnnervenlähmungen mittels Computerelektromyografie.