Table 4 The characteristic of datasets from various hospitals, Male: M; Female: F
Characteristics | SZH Dataset | FSH Dataset | LZH Dataset |
|---|---|---|---|
No. of collected images | 119,620 | 66,716 | 15,133 |
No. of patients | 10,934 | 7568 | 1891 |
Race of the patients | Asian | Asian | Asian |
No. of qualified images | 23,788 | 14,285 | 1267 |
No. of patients with definitive diagnosis | 7948 | 4743 | 1267 |
Age range/Mean | 4–96/37 | 2–95/35 | 3–97/46 |
Sex: n (%) | M: 4019(50.57%) F: 3929(49.43%) | M: 2638(55.63%) F: 2105(44.37%) | M: 591(46.65%) F: 676(53.35%) |
Level of hospital | Tertiary General Hospitals | Tertiary General Hospitals | Secondary General Hospitals |
Location of hospital | Shenzhen, Guangdong, China | Foshan, Guangdong, China | Leizhou, Guangdong, China |
The operating systems and endoscopes for obtaining images | System: Olympus CV-170 Digital Endo-Vision Endoscope: Matrix E2, XION GmbH | System: STORZ Xenon Nova 300 Endoscope: STORZ Image 1 HUB H3-Z | System: SD-HD668P (Shenda endoscope) Endoscope: Shenda, J0200G |
Image resolution(pixel) | ~850 × 850 | ~720 × 570 | ~480 × 540 |
