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Table 1:  Sensitivity and specificity of T1 MTC hyperintense signal in patients with ALS and controls
Patients with ALS Controls
T1 MTC hyperintensity 
    Present 16 0
    Absent 27 43
Sensitivity (%) 37.2 
Specificity (%) 100 
Positive predictive value 1 
Negative predictive value 0.61
	Patients with ALS	Controls
T1 MTC hyperintensity
Present	16	0
Absent	27	43
Sensitivity (%)	37.2
Specificity (%)	100
Positive predictive value	1
Negative predictive value	0.61