Table 2:

Diagnostic accuracy of quantitative and qualitative (visual) assessments

SensitivitySpecificityPPVNPVAUC (95% CI)Diagnostic AccuracyCutoff
Quantitative measurements
    3T NM signal0.880.80.880.80.88 (0.79–0.97)0.86110.35
    Volume10.720.8610.86 (0.76–0.95)0.89200.02
    7T T2*WI volume0.650.720.820.540.69 (0.53–0.84)0.68498.70
Diffusion measures
    FA 3T NM0.750.530.750.550.68 (0.54–0.82)0.680.33
    3T T2WI0.650.700.80.520.64 (0.5–0.79)0.660.37
    AD 3T NM0.70.650.780.540.73 (0.59–0.87)0.680.64
    3T T2WI0.610.750.810.520.65 (0.49–0.80)0.660.5
    RD 3T NM0.640.750.820.540.72 (0.58–0.86)0.670.43
    3T T2WI0.720.60.760.550.68 (0.52–0.83)0.670.29
    MD 3T NM0.670.750.830.560.72 (0.58–0.87)0.70.51
    3T T2WI0.640.750.820.540.67 (0.53–0.82)0.670.38
Combined measurements
    NM signal and volume + FA (3T NM)0.920.950.970.860.96 (0.9–1)0.934.4
Qualitative evaluation
    NM at 3T0.830.90.940.90.86
    DNH at 7T
        Method 10.970.80.90.940.91
        Method 20.940.850.920.90.91
  • Note:—AUC indicates area under the curve; NPV, negative predictive value; PPV, positive predictive value.