Table 5 Areas under the Receiving Operating Characteristic curves (Az), 95% confidence intervals and results of the Z test for PatRsq (Patlak Rsquare), PS (Permeability-surface area product) and Tpeak (Time to Peak).
From: Quantitative analysis of CT-perfusion parameters in the evaluation of brain gliomas and metastases
|  | Az ± SE | 95% Confidence interval | pz |
|---|---|---|---|
Pat Rsq | 0. 82 ± 0.08 | 0.58 ÷ 0.93 | 0.02 |
PS | 0.81 ± 0.09 | 0.57 ÷ 0.92 | 0.02 |
T peak | 0.68 ± 0.10 | 0.44 ÷ 0.83 | 0.12 |