Brain Parenchymal Fraction: A Relatively Simple MRI Measure to Clinically Distinguish ALS Phenotypes

Table 1

Clinical diagnoses of neurologic disease controls.

Subject	Clinical diagnosis
1	Severe fatigue, headache
2	Stiff person syndrome
3	Myasthenia gravis
4	Parkinson’s disease
5	Depression, headache, and fibromyalgia-like syndrome
6	Fibromyalgia-like syndrome, headache
7	Painful sensory polyneuropathy
8	Insomnia, headache
9	Parkinson’s disease
10	Cervical radiculopathy
11	Non-length-dependent small fiber sensory neuropathy
12	Headache, pain in lower leg
13	Small fiber neuropathy, headache
14	Large fiber neuropathy
15	Fibromyalgia-like syndrome, headache