Table 3.
Algorithm performance with the Ocus 40 scanner for canine fecal samples prepared with the Vetscan Imagyst sample preparation device with sugar solution: diagnostic sensitivity and specificity comparing the results reported by an expert (reference) versus by the Vetscan Imagyst system.
| Ancylostoma | Cystoisospora | Toxocara | Trichuris | |
|---|---|---|---|---|
| True-positive | 197 | 78 | 97 | 122 |
| True-negative | 279 | 407 | 396 | 370 |
| False-positive | 7 | 14 | 6 | 1 |
| False-negative | 19 | 3 | 3 | 9 |
| Total | 502 | 502 | 502 | 502 |
| Sensitivity, % (95% CI) | 91.2 (86.9‒94.4) | 96.3 (90.4‒98.9) | 97.0 (92.2‒99.1) | 93.1 (87.8‒96.5) |
| Specificity, % (95% CI) | 97.6 (95.3‒98.9) | 96.7 (94.6‒98.1) | 98.5 (96.9‒99.4) | 99.7 (98.7‒100.0) |