DAMO iAorta, Built with Zhejiang University's First Affiliated Hospital, Enters China's Special Review for Non-Contrast CT Aortic Syndrome Triage

China's National Medical Products Administration admitted DAMO iAorta, a non-contrast CT image-assisted triage software for acute aortic syndrome (AAS), to its innovative medical device special review procedure, according to a 2026 No. 8 announcement reported by Medvalley on 2 June 2026. The article says the paper in Nature Medicine shows sensitivity of 95.5% and specificity of 99.4%, and that the software can lower the missed-diagnosis rate from 48.8% to 4.8% and shorten average time to diagnosis from 4.3 hours to 1.7 hours. These are figures reported by the article, which attributes them to the paper. AAS is a group of fast-onset, highly lethal cardiovascular emergencies that includes acute aortic dissection, intramural hematoma and penetrating ulcer. Mortality can reach 30% if it is not confirmed and treated within 24 hours, and the article cites domestic and international studies in which about 15% to 43% of patients are misdiagnosed at first assessment. Fast, accurate triage is described as a major medical difficulty. DAMO built iAorta on its non-contrast CT plus AI technology, working with The First Affiliated Hospital, Zhejiang University School of Medicine for more than three years. The model is designed to help doctors triage AAS from the ordinary non-contrast CT commonly used in outpatient and emergency care. The article adds that the software was earlier shortlisted among entrants to the 2025 AI medical device innovation task organised by the Ministry of Industry and Information Technology and the National Medical Products Administration, and that it has been put into use in more than ten hospitals nationwide.