S17-4. Nerve and muscle ultrasound assessment in ALS

In the diagnosis and assessment of amyotrophic lateral sclerosis (ALS), the roles of nerve and muscle ultrasound vary widely. Nerve ultrasound has revealed that cross-sectional area (CSA) was decreased in the median and ulnar nerves and the nerve roots in ALS. In addition, a longitudinal study demonstrated the possibility that ulnar nerve CSA could be a useful biomarker to monitor disease progression in ALS. Muscle ultrasound is useful for detecting widespread fasciculations in the diagnosis of ALS.

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