Table 4 Diagnostic performance of random forest for discriminating cytomegalovirus esophagitis from herpes simplex virus esophagitis.
Random forest | Sen. (%) | Spec. (%) | PPV (%) | NPV (%) | Acc (%) | AUC |
|---|---|---|---|---|---|---|
HSB color model | ||||||
Without clinical factor* (per-ROI/per-image/per-patient) | 98.7 (0. 9) | 98.3 (1.3) | 94.9 (4.3) | 99.6 (0.3) | 98.4 (1.1) | 0.998 (0.002) |
99.5 (0.8) | 99.0 (1.2) | 98.4 (2.1) | 99.7 (0.5) | 99.2 (0.9) | 0.999 (0.001) | |
100 (0.0) | 100 (0.0) | 100 (0.0) | 100 (0.0) | 100 (0.0) | 1.0 (0.0) | |
With clinical factor* (per-ROI/per-image/per-patient) | 98.3 (1.7) | 98.2 (0.9) | 94.3 (3. 6) | 99.5 (0.5) | 98.3 (0.9) | 0.998 (0.002) |
99.4 (1.1) | 99.2 (1.0) | 98.7 (1.6) | 99.6 (0.6) | 99.3 (0.9) | 0.999 (0.001) | |
100 (0.0) | 100 (0.0) | 100 (0.0) | 100 (0.0) | 100 (0.0) | 1.0 (0.0) | |
RGB color model | ||||||
Without clinical factor* (per-ROI/per-image/per-patient) | 67.4 (11.8) | 74.0 (10.9) | 46.8 (11.2) | 87.5 (5.3) | 72.2 (7.4) | 0.752 (0.067) |
65.2 (15.0) | 74.3 (11.2) | 62.6 (7.9) | 78.2 (6.4) | 70.9 (4.4) | 0.734 (0.063) | |
70.8 (11.3) | 79.6 (15.0) | 74.4 (13.3) | 79.6 (5.0) | 75.9 (6.8) | 0.754 (0.080) | |
With clinical factor* (per-ROI/per-image/per-patient) | 66.9 (12.1) | 74.8 (9.6) | 47.3 (10.8) | 87.7 (4.8) | 73.2 (6.4) | 0.752 (0.070) |
68.9 (15.9) | 71.5 (11.6) | 61.4 (6.8) | 79.9 (6.6) | 71.0 (4.5) | 0.736 (0.064) | |
74.1 (13.7) | 78.8 (11.6) | 73.3 (10.6) | 81.8 (6.9) | 76.9 (6.3) | 0.758 (0.082) | |
