Table 1:

Diagnostic accuracy of DSC- and DCE-derived parameters in differentiating high- and low-grade astrocytomas using hot spot ROIsa

AUC95% CICutoff ValueSensitivity (%)Specificity (%)Oligoastrocytomas
Vp_Φ0.880.68–11.159089Including
Vp_Φ0.870.68–11.168989Excluding
Vp_SI0.810.64–0.983.387989Including
Vp_SI0.800.62–0.983.398389Excluding
rCBV0.780.54–13.319767Including
rCBV0.780.54–13.319767Excluding
Ktrans0.840.66–10.000610067Including
Ktrans0.840.66–10.000610067Excluding
Ktrans_SI0.770.58–0.950.0307978Including
Ktrans_SI0.760.57–0.940.0307678Excluding
  • a No statistically significant difference (P > .05) was found between area under the curve of different parameters.