Table 7 Changes in detection sensitivity for nodules of different types, sizes, and positions (mean ± SD)
From: Development and performance evaluation of a deep learning lung nodule detection system
| Â | N | Without CAD | With CAD | ||||||
|---|---|---|---|---|---|---|---|---|---|
Total | Group 1 | Group 2 | Group 3 | Total | Group 1 | Group 2 | Group 3 | ||
Nodule type | |||||||||
Solid | 43 | 0.59 ± 0.07 | 0.64 ± 0.03 | 0.59 ± 0.06 | 0.54 ± 0.08 | 0.81 ± 0.09 | 0.85 ± 0.02 | 0.78 ± 0.12 | 0.80 ± 0.08 |
Part solid | 8 | 0.56 ± 0.16 | 0.58 ± 0.16 | 0.63 ± 0.18 | 0.46 ± 0.06 | 0.71 ± 0.12 | 0.75 ± 0.06 | 0.66 ± 0.05 | 0.75 ± 0.06 |
Pure GGN | 6 | 0.08 ± 0.11 | 0.17 ± 0.14 | 0.08 ± 0.08 | 0.00 ± 0.00 | 0.35 ± 0.17 | 0.39 ± 0.08 | 0.29 ± 0.18 | 0.39 ± 0.16 |
Nodule size (mm) | |||||||||
 ≤ 10 | 38 | 0.37 ± 0.08 | 0.41 ± 0.03 | 0.39 ± 0.08 | 0.31 ± 0.05 | 0.66 ± 0.11 | 0.71 ± 0.04 | 0.63 ± 0.13 | 0.66 ± 0.09 |
 ≤ 20 | 11 | 0.78 ± 0.12 | 0.85 ± 0.11 | 0.80 ± 0.08 | 0.70 ± 0.11 | 0.88 ± 0.09 | 0.91 ± 0.04 | 0.86 ± 0.08 | 0.88 ± 0.07 |
 ≤ 30 | 3 | 1.00 ± 0.00 | 1.00 ± 0.00 | 1.00 ± 0.00 | 1.00 ± 0.00 | 1.00 ± 0.00 | 1.00 ± 0.00 | 1.00 ± 0.00 | 1.00 ± 0.00 |
 > 30 | 5 | 0.92 ± 0.10 | 1.00 ± 0.00 | 0.85 ± 0.09 | 0.93 ± 0.09 | 0.96 ± 0.08 | 1.00 ± 0.00 | 0.90 ± 0.09 | 1.00 ± 0.09 |
Nodule position | |||||||||
Right upper lobe | 11 | 0.64 ± 0.10 | 0.61 ± 0.04 | 0.68 ± 0.10 | 0.61 ± 0.11 | 0.86 ± 0.13 | 0.85 ± 0.09 | 0.86 ± 0.13 | 0.88 ± 0.15 |
Right middle lobe | 7 | 0.24 ± 0.11 | 0.24 ± 0.07 | 0.25 ± 0.16 | 0.24 ± 0.07 | 0.54 ± 0.13 | 0.57 ± 0.07 | 0.54 ± 0.17 | 0.52 ± 0.12 |
Right lower lobe | 17 | 0.54 ± 0.08 | 0.61 ± 0.06 | 0.56 ± 0.03 | 0.43 ± 0.03 | 0.69 ± 0.11 | 0.73 ± 0.08 | 0.66 ± 0.06 | 0.71 ± 0.07 |
Left upper lobe | 9 | 0.48 ± 0.12 | 0.56 ± 0.09 | 0.44 ± 0.14 | 0.44 ± 0.09 | 0.71 ± 0.15 | 0.85 ± 0.21 | 0.64 ± 0.12 | 0.67 ± 0.09 |
Left lower lobe | 13 | 0.64 ± 0.10 | 0.72 ± 0.04 | 0.63 ± 0.10 | 0.56 ± 0.10 | 0.85 ± 0.11 | 0.90 ± 0.10 | 0.81 ± 0.11 | 0.87 ± 0.06 |
Attached to parietal pleura | 16 | 0.71 ± 0.11 | 0.77 ± 0.13 | 0.69 ± 0.12 | 0.69 ± 0.05 | 0.78 ± 0.07 | 0.83 ± 0.05 | 0.73 ± 0.08 | 0.79 ± 0.03 |
Attached to visceral pleura | 7 | 0.74 ± 0.09 | 0.76 ± 0.07 | 0.71 ± 0.00 | 0.76 ± 0.13 | 0.84 ± 0.11 | 0.86 ± 0.07 | 0.82 ± 0.12 | 0.86 ± 0.13 |
Attached to interlobular fissure | 11 | 0.43 ± 0.09 | 0.42 ± 0.04 | 0.43 ± 0.13 | 0.42 ± 0.04 | 0.68 ± 0.10 | 0.67 ± 0.04 | 0.66 ± 0.14 | 0.73 ± 0.04 |