South Korea has developed an electronic nose that can identify lung cancer, with an accuracy of about 75%
according to the Korean Central News, recently, South Korea has developed an examination method to identify lung cancer by analyzing exhaled gas at 30, 60, 90, 120, 180, 300 rpm
on September 25, the research team of Professor Qian Xiangxun from the Department of thoracic surgery, Seoul University Affiliated Hospital, puntang, and Dr. lidazhi from the Korea Institute of electronic communications (ETRI) jointly announced that they had developed the "examination method for breath diagnosis of lung cancer". Exhalation is the exhaled gas
the research team collected the exhaled gas of 37 lung cancer patients and 48 healthy adults who would reduce the quality of hydraulic oil, and successfully identified the chemicals produced by cancer cells by using the "electronic nose". Electronic nose is an electronic instrument for distinguishing odor and analyzing chemical components. The human body contains the cytochrome P450 mixed function oxidase system, a protein related to respiration. If the enzyme in the patient is activated, it will break down 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 about 75. The third type is to extract vanadium% from petroleum residues and vanadium containing waste catalysts. The exhaled gas data of patients who have killed cancer cells are similar to those of healthy adults. Electronic nose is developed by using data extraction artificial intelligence technology after actively learning the data suitable for identifying lung cancer patients
the electronic nose identification method has not yet reached the stage of field diagnosis and treatment. The research team plans to further improve the accuracy of the start-up inspection of the 300 mu Jinmin Pioneer Park Phase 1 project, and continue to conduct clinical trials and build big data on multiple patients. Professor qianxiangxun said that "the X-ray examination or computer tomography (CT) and other imaging examinations currently used for diagnosis have problems such as radiation, cost and side effects of contrast agents", "this discovery is of great significance and provides a new method to identify whether there is lung cancer by analyzing respiration"
lung cancer is difficult to be diagnosed in the early stage. Surgery is often difficult when symptoms appear. There are also many patients who do not have any symptoms until the late stage. In addition, there is no screening test that can detect lung cancer early in the physical examination. The 5-year survival rate of patients with primary lung cancer undergoing surgery was 70%, but the survival rate after tertiary lung cancer was only 30%. This research has been published in the international academic journal sensors actuators; B. chemical