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Table 2:

Spectroscopy results

MetaboliteControls (n = 15)ALS-All (n = 24)El Escorial CriteriaALS-FTD (n = 2)
Possible (n = 5)Probable (n = 15)Definite (n = 4)
NAA/mIns1.95 ± 0.271.62 ± 0.311.65 ± 0.231.63 ± 0.371.53 ± 0.101.10 ± 0.19
NAA (mmol/L)9.82 ± 1.768.92 ± 1.299.22 ± 0.658.77 ± 1.369.14 ± 1.807.02 ± 2.02
mIns (mmol/L)5.06 ± 0.765.63 ± 0.965.67 ± 0.895.06 ± 0.755.99 ± 1.146.34 ± 0.71
  • Note:—Spectroscopy quantities are mean ± SD. Patients are categorized according to disease stage by El Escorial Criteria or presence of dementia (ALS-FTD).