NCS – Knowledge and References

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Electrodiagnostic Studies

Published in Joseph D. Bronzino, Donald R. Peterson, Biomedical Engineering Fundamentals, 2019

FIGURE 46.8 Median sensory nerve conduction study. (a) e antidromic method shows ring electrodes used for recording the response. e ground electrode, placed on hand dorsum, is not seen. (b) e response to individual stimuli shows a time-locked response and also background noise. (c) Averaging these responses gives a SNAP with stable baseline. (Copyright Nandedkar Productions LLC, 2010.)

Facial muscle reanimation by transcutaneous electrical stimulation for peripheral facial nerve palsy

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Journal Information

Published in Journal of Medical Engineering & Technology, 2019

Eeva Mäkelä, Hanna Venesvirta, Mirja Ilves, Jani Lylykangas, Ville Rantanen, Tuija Ylä-Kotola, Sinikka Suominen, Antti Vehkaoja, Jarmo Verho, Jukka Lekkala, Veikko Surakka, Markus Rautiainen

The severity of the palsy was individually assessed with the Sunnybrook facial grading system (SFGS) [23] that was scored offline by three investigators from a video recording, and with a nerve conduction study (NCS) and needle electromyography (EMG). SFGS is a composite score that evaluates the rest symmetry, symmetry of the movements, and synkinesias, ranging from zero (total paralysis) to one hundred (normal facial function). The SFGS score ranged from 11 to 78 (M = 37, SD = 19).