The Scientific World Journal

Research Article

Spectroscopic Evaluation of Glioma Grading at 3T: The Combined Role of Short and Long TE

Table 1

Mean values and standard deviation of intratumoural and peritumoral metabolic ratios for short TE (TE = 35 msec) and long TE (144 msec).
 IntratumoralPeritumoral
 NAA/CrCho/CrmI/CrCho/NAANAA/CrCho/CrmI/CrCho/NAA
Short TE (35 msec)        
 Low grade gliomas 1 . 0 4 ± 0 . 3 9 1 . 5 2 ± 0 . 4 6 0 . 8 5 ± 0 . 2 4 1 . 6 5 ± 1 . 0 8 1 . 6 5 ± 0 . 4 5 0 . 8 3 ± 0 . 1 5 0 . 6 1 ± 0 . 1 6 0 . 5 1 ± 0 . 0 9
 High grade gliomas 1 . 2 2 ± 0 . 3 9 1 . 9 0 ± 0 . 6 3 0 . 9 0 ± 0 . 3 5 1 . 4 0 ± 0 . 6 0 1 . 3 0 ± 0 . 2 9 1 . 0 0 ± 0 . 2 7 0 . 5 5 ± 0 . 1 1 0 . 7 9 ± 0 . 3 1
  𝑃 values—0.02——0.047——0.019
Long TE (144 msec)        
 Low grade gliomas 1 . 2 9 ± 0 . 5 3 2 . 1 7 ± 0 . 6 7 0 . 3 4 ± 0 . 1 4 2 . 0 2 ± 1 . 2 0 1 . 7 4 ± 0 . 5 7 1 . 2 6 ± 0 . 2 7 0 . 2 4 ± 0 . 0 9 0 . 7 9 ± 0 . 3 2
 High grade gliomas 1 . 1 9 ± 0 . 4 4 2 . 9 9 ± 1 . 1 8 0 . 4 0 ± 0 . 2 7 2 . 9 3 ± 1 . 7 2 1 . 3 4 ± 0 . 3 9 1 . 5 8 ± 0 . 5 2 0 . 2 1 ± 0 . 1 4 1 . 2 2 ± 0 . 6 3
  𝑃 values—0.013—0.0490.050.05—0.016
Note. P values denote the metabolite ratio differences among high and low grade gliomas. (—) denotes no statistical difference.