Varan Govind1, Khema R. Sharma2,
Sulaiman Sheriff1, Andrew A. Maudsley1
1Radiology, University of Miami, Miami,
FL, United States; 2Neurology, University of Miami, Miami, FL,
United States
Whole-brain
proton MRSI data acquired at 3T from groups of definite-ALS and control
subjects were analyzed by brain hemispheric lobes and parenchymal constituent
tissue-types (white matter and gray matter). The metabolite ratios, NAA/Cr
and Cho/NAA, in the white matter showed significant and widespread
alterations throughout the brain of ALS patients. In the gray matter of the
ALS group, significant differences were found in the left frontal- and left
parietal lobes for NAA/Cr, and bilateral frontal lobe for Cho/NAA.