Table 2.
External Validation (Dataset 1) Classification Accuracy, Precision, Recall (sensitivity), F1 Score, and Receiver Operating Characteristic Analysis with the AUC for the SP A1 Parameter, CBI, and TBI Using Naive Bayes Classifier and for the Processed Pseudoimage Slices Using the Adopted DenseNet 121 Model
| Parameter | Class | Recall | Specificity | Precision | F1 Score | Accuracy | Mean AUC ± SE |
|---|---|---|---|---|---|---|---|
| DenseNet121 | Normal | 0.98 | 0.78 | 0.82 | 0.89 | 0.88 | 0.934 ± 0.026 |
| Keratoconus | 0.78 | 0.98 | 0.98 | 0.87 | |||
| SP A1 | Normal | 0.92 | 0.83 | 0.84 | 0.88 | 0.88 | 0.954 ± 0.020 |
| Keratoconus | 0.83 | 0.92 | 0.91 | 0.87 | |||
| CBI | Normal | 0.90 | 0.97 | 0.97 | 0.93 | 0.94 | 0.982 ± 0.010 |
| Keratoconus | 0.97 | 0.90 | 0.91 | 0.94 | |||
| TBI | Normal | 1.0 | 1.0 | 1.0 | 1.0 | 1.00 | 1.000 ± 0.000 |
| Keratoconus | 1.0 | 1.0 | 1.0 | 1.0 |
AUC = area under the receiver operating characteristic curve; CBI = Corvis biomechanical index; SE = standard error; SP A1 = stiffness parameter at first applanation; TBI = tomography and biomechanical index.