1. Muscle ultrasound has revealed distinct fasciculation differences between ALS and SBMA patients.
2. A modified ultrasound scoring system effectively distinguishes ALS from SBMA.
3. Ultrasound can complement clinical and electrophysiologic findings but should not replace existing diagnostic methods.
4. SBMA patients showed more tongue fasciculations, while ALS patients exhibited widespread and more intense fasciculations.
5. Age and disease duration varied between the SBMA and ALS groups.
6. Ultrasound can serve as a useful noninvasive tool in differentiating ALS from SBMA.
7. No statistically significant correlations were found between fasciculation characteristics and clinical measures.
8. The absence of tongue muscle fasciculations on ultrasound may exclude SBMA from the diagnosis.

Source: BMJ Neurology Open