Needle electromyography

Physiologic assessment of diseases of the motor unit from the anterior horn cells to the muscles relies on a combination of needle electromyography (EMG) and nerve conduction studies (NCS). Both require a unique combination of knowledge of peripheral nervous system anatomy, physiology, pathophysiolo...

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Bibliographic Details
Published in:Muscle & nerve 2009-02, Vol.39 (2), p.244-270
Main Authors: Daube, Jasper R., Rubin, Devon I.
Format: Article
Language:English
Subjects:
Action Potentials - physiology
auditory pattern recognition
Biological and medical sciences
Electric Stimulation
Electrodiagnosis. Electric activity recording
Electromyography - instrumentation
Electromyography - methods
Humans
Investigative techniques, diagnostic techniques (general aspects)
Medical sciences
Muscle, Skeletal - physiology
needle electromyography
Needles
nerve conduction study
Nervous system
Neural Conduction - physiology
peripheral nervous system
waveforms
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Summary:Physiologic assessment of diseases of the motor unit from the anterior horn cells to the muscles relies on a combination of needle electromyography (EMG) and nerve conduction studies (NCS). Both require a unique combination of knowledge of peripheral nervous system anatomy, physiology, pathophysiology, diseases, techniques, and electricity is necessary. Successful, high‐quality, reproducible EMG depends on the skills of a clinician in patient interaction during the physical insertion and movement of the needle while recording the electrical signals. These must be combined with the skill of analyzing electric signals recorded from muscle by auditory pattern recognition and semiquantitation.10, 52 This monograph reviews the techniques of needle EMG and waveform analysis and describes the types of EMG waveforms recorded during needle EMG. © 2009 Wiley Periodicals, Inc. Muscle Nerve 39: 244–270, 2009
ISSN:0148-639X
1097-4598
DOI:10.1002/mus.21180