According to South Korea’s Central Daily News, recently, South Korea has developed an examination method to identify whether or not there is lung cancer by analyzing exhaled gases. On September 25, the research team of Professor Qian Xiangxun from the Department of Thoracic Surgery, Seoul National University Hospital, and the Dr. Li Dazhi (voice) group of the Korea Electronics and Telecommunications Research Institute (ETRI) announced that they have developed a method for the examination of lung cancer. ". Exhalation refers to the exhaled gas. The team collected gas exhaled from 37 lung cancer patients and 48 healthy adults and successfully used the "electronic nose" to identify the chemicals produced by cancer cells. The electronic nose is an electronic device that distinguishes between odor and analytical chemical composition. The human body contains a protein related to respiration - a cytochrome P450 mixed function oxidase system. If the enzyme in the patient is activated, it will decompose specific volatile organic compounds. If the electronic nose identifies this compound, it means that the person has lung cancer. The detection accuracy of the electronic nose is approximately 75%. Gas data exhaled by patients who have killed cancer cells are similar to healthy adults. The electronic nose is developed by using data extraction artificial intelligence technology after actively learning data suitable for identifying patients with lung cancer. The electronic nose identification method has not yet reached the stage for on-site diagnosis and treatment. The research team plans to further improve the accuracy of the examination, and continue to conduct clinical trials and build big data for multiple patients. Professor Qian Xiangxun said, "The current imaging examinations such as X-ray examination or computed tomography (CT) have problems such as radiation, cost and side effects of contrast agents." "This discovery has great significance and provides A new method for identifying lung cancer by analyzing respiration." Early lung cancer is difficult to diagnose. It is often difficult to perform surgery when symptoms appear. There are still many patients who have not experienced any symptoms until the late stage. In addition, there is no screening for early detection of lung cancer during physical examination. The 5-year survival rate of patients undergoing surgery in the first stage of lung cancer is 70%, but the survival rate after the third stage of lung cancer is only 30%. The study has been published in the international academic journal Sensors & Actuators; B. Chemical. Metro Energy Feedback Transformer Metro Energy Feedback Transformer,Dry-Type Power Transformer,Scb Power Transformer,Energy Feedback Transformer SANON DOTRANS Co., Ltd. , https://www.sntctransformer.com
March 22, 2023