Table S1. Quantitative evaluation of the deep learning segmentation system on the validation dataset. The Dice coefficients, volume estimation error and POI estimation error in the whole lung, lung lobes, and bronchopulmonary segments were calculated to assess the automatic segmentation accuracy.
| Accuracy metrics | Mean | Standard deviation | Median | 25% IQR | 75% IQR | Number of infected samples |
|---|---|---|---|---|---|---|
| Dice similarity coefficient | 91.6% | 10.0% | 92.2% | 89.0% | 94.6% | 300 |
| Volume estimation error (cm3) | 10.7 | 16.7 | 5.9 | 1.8 | 13.9 | 300 |
| POI (the whole lung) | 0.3% | 0.4% | 0.1% | 0.0% | 0.4% | 300 |
| POI (left upper lobe) | 0.4% | 1.0% | 0.1% | 0.0% | 0.4% | 233 |
| POI (left lower lobe) | 0.7% | 1.6% | 0.3% | 0.1% | 1.0% | 267 |
| POI (right upper lobe) | 0.3% | 0.7% | 0.1% | 0.0% | 0.5% | 213 |
| POI (right middle lobe) | 0.3% | 0.7% | 0.1% | 0.0% | 0.5% | 204 |
| POI (right lower lobe) | 0.6% | 1.1% | 0.3% | 0.1% | 0.9% | 275 |
| POI (left upper lobe/posterior tip) | 0.5% | 1.0% | 0.1% | 0.0% | 0.5% | 189 |
| POI (left upper lobe/anterior) | 0.5% | 1.2% | 0.2% | 0.0% | 0.5% | 158 |
| POI (left upper lobe/upper tongue) | 0.7% | 1.7% | 0.2% | 0.0% | 0.9% | 192 |
| POI (left upper lobe/lower tongue) | 0.7% | 1.8% | 0.2% | 0.0% | 0.8% | 175 |
| POI (left lower lobe/dorsal) | 0.9% | 2.1% | 0.4% | 0.1% | 1.2% | 224 |
| POI (left lower lobe/anterior medial basal) | 0.6% | 1.4% | 0.2% | 0.0% | 0.8% | 209 |
| POI (left lower lobe/outer basal) | 1.1% | 2.5% | 0.5% | 0.1% | 1.7% | 228 |
| POI (left lower lobe/posterior basal) | 1.1% | 2.4% | 0.5% | 0.1% | 1.6% | 233 |
| POI (right upper lobe/apical) | 0.4% | 1.1% | 0.1% | 0.0% | 0.5% | 142 |
| POI (right upper lobe/back) | 0.7% | 1.7% | 0.2% | 0.0% | 0.8% | 186 |
| POI (right upper lobe/anterior) | 0.4% | 1.1% | 0.1% | 0.0% | 0.9% | 151 |
| POI (right middle lobe/lateral) | 0.6% | 1.5% | 0.1% | 0.0% | 0.6% | 183 |
| POI (right middle lobe/medial) | 0.3% | 0.8% | 0.1% | 0.0% | 0.4% | 167 |
| POI (right lower lobe/dorsal) | 0.9% | 1.9% | 0.4% | 0.1% | 1.4% | 233 |
| POI (right lower lobe/inner basal) | 0.6% | 1.4% | 0.3% | 0.1% | 0.9% | 162 |
| POI (right lower lobe/anterior basal) | 0.6% | 1.4% | 0.1% | 0.0% | 0.9% | 210 |
| POI (right lower lobe/outer basal) | 0.9% | 1.8% | 0.4% | 0.1% | 1.2% | 236 |
| POI (right lower lobe/posterior basal) | 1.0% | 2.0% | 0.5% | 0.1% | 1.6% | 249 |
IQR, interquartile range; POI, percentage of infection.