Capsule gastroscopy has become a well-known examination method. The use of capsules for esophageal examinations is still new in China.
The vast majority of cancer patients have no obvious symptoms in the early stage. Fewer people are willing to screen due to the insufficient allocation of endoscopic diagnosis and treatment resources in China and the low acceptance of gastroscopies. In 2021, Luowei Wang's team first reported the scientific research results of AI-assisted cytology screening for esphageal cancer in the American Journal of Gastroenterology.