MR spectroscopy | No cooling (n=14) | 72 hours of cooling (n=26) |
Lac/NAA | 0.16 (0.06) | 0.12 (0.03) |
NAA/Cho | 0.67 (0.08)* | 0.89 (0.11)* |
NAA/Cr | 1.42 (0.11)* | 1.64 (0.18)* |
Data are number of patients or mean (SD).
*P<0.001 (Student’s t-test).
Cho, total choline; Cr, total creatinine; Lac, threonine+lactate; NAA, N-acetylaspartate+N-acetylaspartylglutamate.