Table 2:

Independent t test and receiver operating characteristic curve analysis of low-/high-grade glioma

MTRasym(3.5ppm)Low-Grade Gliomas (n = 28)High-Grade Gliomas (n = 14)P ValueArea Under the CurveaOptimal Threshold (%)Sensitivity (%)Specificity (%)
Reader 12.65% ± 0.203.74% ± 0.17.001.813 (.675, .95)3.1192.971.4
Reader 22.63% ± 0.183.47% ± 0.16.004.770 (.623, .918)2.8592.971.4
Mean MTRasym(3.5ppm)2.64% ± 0.183.61% ± 0.155.002.791 (.650, .931)2.9392.971.4
Mean Ki-67 labeling index4.98% ± 1.02 (n = 24)24.15% ± 5.04 (n = 13).003.867 (.702, 1.00)6.584.683.3
  • a Data in parentheses are 95% CIs.