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Table 1: 
Perfusion parameters and ROC analysis for low- and high-grade gliomas
Group (No. of patients)PS (mL/100 g/min) Mean (SD)CBV (mL/100 g) Mean (SD)CBF (mL/100 g/min) Mean (SD)MTT (s) Mean (SD)
Low grade (8)0.52 (0.15)0.95 (0.22)27.0 (8.3)4.24 (1.42)
High grade (24)2.37 (1.40)2.79 (1.20)82.0 (73.7)4.67 (1.37)
P value<.001<.001.0024.564
C-statistic0.9270.9300.8490.573
  • ROC indicates receiver operating characteristic; PS, permeability surface-area product; CBV, cerebral blood volume; CBF, cerebral blood flow; MTT, mean transit time.