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Analysis of CT perfusion parameters and area under the curve of combined parameters for colorectal cancer with different microvessel densities
| Perfusion parameters | AUC(95% CI) | Threshold/HU | Sensitivity/% | Specificity/% | Youden index |
|---|---|---|---|---|---|
| BV | 0.733(0.623–0.824) | 7.39 | 76.67 | 71.15 | 0.4782 |
| BF | 0.991(0.940−1.000) | 168.95 | 90.00 | 100.00 | 0.9000 |
| BV + BF | 0.997(0.950−1.000) | — | 96.67 | 98.08 | 0.9474 |
