New AI system can detect bowel cancer
Japanese researchers built a new AI system that can detect bowel cancer in less than a second. A new endoscopic system powered by artificial intelligence (AI) has automatically identified colorectal adenomas during colonoscopy.
The new computer-aided diagnostic system uses an endocytoscopic image to analyze approximately 300 features of the polyp.
The system analyzes each polyp against more than 30,000 endocytoscopic images that used for machine learning, allowing it to predict the lesion pathology in less than a second. Previous studies demonstrated the viability of using such a system to classify colorectal polyps. Till now, no prospective studies reported.
colorectal polyps detected using endocytoscopy
The study, led by Dr. Yuichi Mori from Showa University in Yokohama, Japan, involved 250 men and women in whom colorectal polyps detected using endocytoscopy. The AI-assisted system used to predict the pathology of each polyp and those predictions compare with the pathological report obtained from the final resected specimens.
Overall, 306 polyps assessed real-time by using the AI-assisted system, providing a sense of 94%, specificity of 79%, accuracy of 86%, and positive and negative predictive values of 79% and 93% respectively, in identifying neoplastic changes.
Mori explained that the most incredible success with this system is that AI enables real-time optical biopsy of colorectal polyps during colonoscopy, regardless of the endoscopists skill. This allows the complete resection of adenomatous polyps and prevents unnecessary polypectomy of non-neoplastic polyps.
“We believe these results are acceptable for clinical application and our immediate goal is to obtain regulatory approval for the diagnostic system”, added Mori.
In further studies, the researchers planning to develop an automatic polyp detection system. “Precise on-site identification of adenomas during colonoscopy contributes to the complete resection of neoplastic lesions” said Mori. This system decreases the risk of colorectal cancer, and cancer-related death.
However, this new endoscopic system reveals at the United European Gastroenterology (UEG) conference in Barcelona.
More information: [United European Gastroenterology]