Table 9. Correctly classified retinal photos with and without DR, and with and without maculopathy by CERA grader, retinal specialist and the local graders before training through the test set.
Diabetic Retinopathy | ||||||
Retinal Specialist | Grader 1 | Grader 2 | ||||
CERA grader | DR + | DR- | DR + | DR- | DR + | DR- |
DR+ | 17 | 9 | 18 | 8 | 19 | 7 |
DR- | 11 | 53 | 4 | 56 | 15 | 46 |
Sensitivity | 61% | 82% | 56% | |||
Specificity | 86% | 88% | 87% | |||
Maculopathy | ||||||
CERA grader | Mac.+ | Mac.- | Mac.+ | Mac.- | Mac.+ | Mac.- |
Maculopathy+ | 6 | 8 | 8 | 5 | 9 | 4 |
Maculopathy - | 0 | 92 | 0 | 86 | 0 | 87 |
Sensitivity | 100% | 100% | 100% | |||
Specificity | 92% | 95% | 96% |