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F‐WAVE VELOCITY IN MOTOR NEURONE DISEASE
Author(s) -
Albizzati M. G.,
Bassi S.,
Passerini D.,
Crespi V.
Publication year - 1976
Publication title -
acta neurologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.967
H-Index - 95
eISSN - 1600-0404
pISSN - 0001-6314
DOI - 10.1111/j.1600-0404.1976.tb04803.x
Subject(s) - f wave , nerve conduction velocity , spinal cord , anatomy , lesion , phase velocity , pyramidal tracts , physics , medicine , neuroscience , surgery , psychology , optics
The F‐wave velocity in the central segment (axilla to spinal cord) was studied employing the “collision technique” described by Kimura (1974), and compared with the conduction velocity obtained with the the usual methods. In 25 normal subjects the F‐wave velocity increased proceeding proximally, reaching the maximum values in the central tract (64.86 ± 2.23 m/sec in ulnar nerve). In 11 patients affected by motor neurone disease and 11 patients affected by amyotrophie lateral sclerosis the F‐wave velocity decreased significantly proceeding proximally and the minimum values were found in the central tract (52.51 ± 2.15 m/see in MND and 48.64 ± 5.60 m/sec in ALS). We therefore suggest the use of F‐wave velocity as a more complete element for precise localization of the lesion in the central segment when the motoneurone is primarily involved.