Table 2. Prediction results for the 76,508 pixels analyzed in the training and validation set of samples, in comparison with pathologic analysis.
| Pathology | Predicted | Standard Error | Agreement (Percent) | Overall Agreement (Percent) | ||
|---|---|---|---|---|---|---|
| Cancer | Glands | Stroma | ||||
| Training set (45,273 pixels) | 98.1 (0.06 standard error) | |||||
| Cancer | 9,514 | 148 | 208 | 0.19 | 96.4 | |
| Glands | 207 | 33,787 | 20 | 0.05 | 99.3 | |
| Stroma | 31 | 248 | 1,110 | 1.08 | 79.9 | |
| Validation set (31,235 pixels) | 98.6 (0.07 standard error) | |||||
| Cancer | 6,448 | 284 | 25 | 0.25 | 95.4 | |
| Glands | 23 | 23,814 | 17 | 0.03 | 99.8 | |
| Stroma | 3 | 98 | 523 | 1.47 | 83.8 | |