Gastric cancer is one of the most common cancer worldwidewith over 1 million new cases in 2018. In Asia, gastric cancer is the secondleading cause of cancer mortality.
While early gastric cancer diagnosis improves prognosis*, early diagnosis has always been a challenge to physicians worldwide.
*5 years survival >90%
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White-light endoscopy is the most common method for visuallydiagnosing early signs of gastric cancer in hospitals. Images of the stomachlining are displayed on the system monitor to guide thedoctors on the best sites to take biopsies. The biopsies will confirm the diagnosis after a few days.
The delay in diagnosis is because conventional white light endoscopy cannotaccurately differentiate normal vs cancerous tissues.
The system classifies high grade dysplasia and gastric cancer as high risk and gastritis, intestinal metaplasia, and low grade dysplasia as low risk. High risk lesions are generally treated with resection while low risk lesions can be closely followed up.
Raman Spectral Analysis is a technique capable of capturing molecular information associated with the cellular metabolic constituents when the tissue molecules are excited by light energy directed at the tissue.
With the technology, the system is able to help identify tissue with high probability of having gastric cancer.