Evaluation of traditional lung cancerdetection modalities and research and application of biomarkers in the early detection of lung cancer

Abstract. At present, the cancer that kills people the fastest worldwide is lung cancer, and many lung cancer patients are found or detected at the late stage of lung cancer, which is very bad for the prognosis of the disease, and makes the mortality rate of the patients increase greatly. Therefore, the development of techniques for the early diagnosis and detection of lung cancer is imperative. At the moment, lung cancer can be detected early due to biomarkers. This review primarily outlines the many kinds of biomarkers and the conventional techniques for detecting and diagnosing lung cancer. In addition, bodily fluids potential application as biomarker carriers in the detecting of cancer development and progression is mentioned in this review, the feasibility of non-invasive cancer diagnostic methods is analyzed, and the current status of the development of such diagnostic methods is summarized.