Table 1.
Summary of the training, testing, and additional testing data sets (N=4257).
| Data type, data source, and data group | Training images, n (%) | Testing images, n (%) | ||||
| Training and testing data | ||||||
|
|
WKUHa | |||||
|
|
|
COVID-19 pneumonia (n=421) | 337 (80.0) | 84 (20.0) | ||
|
|
|
Other pneumonia (n=1357) | 1086 (80.0) | 271 (20.0) | ||
|
|
|
Nonpneumonia and normal lung (n=998) | 798 (80.0) | 200 (20.0) | ||
|
|
|
Lung cancer (n=444) | 355 (80.0) | 89 (20.0) | ||
|
|
CNUHb | |||||
|
|
|
COVID-19 pneumonia (n=673) | 538 (80.0) | 135 (20.0) | ||
|
|
SIRMc | |||||
|
|
|
COVID-19 pneumonia (n=100) | 80 (80.0) | 20 (20.0) | ||
| Additional external testing data | ||||||
|
|
Low-quality CT images from papers | |||||
|
|
|
COVID-19d pneumonia (n=264) | 0 (0.0) | 264 (100.0) | ||
aWKUH: Wonkwang University Hospital.
bCNUH: Chonnam National University Hospital.
CSIRM: Italian Society of Medical and Interventional Radiology.
dCOVID-19: coronavirus disease.