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| Models | Difference between areas | Standard error | z statistic | Significance level |
|---|---|---|---|---|
| D* model vs. histogram | 0.0792 | 0.0368 | 2.151 | 0.0315 |
| D* model vs. combined | 0.110 | 0.0387 | 2.853 | 0.0043 |
| f_minimum vs. combined | 0.183 | 0.0436 | 4.205 | <0.0001 |
| PCI vs. combined | 0.162 | 0.0376 | 4.326 | <0.0001 |
| Histogram vs. combined | 0.0312 | 0.0210 | 1.485 | 0.1377 |
D*, pseudo-diffusion coefficient; f, perfusion fraction; PCI, percentage of rectal wall circumference invasion.
