In order to strengthen the training, promotion and application of standardized diagnosis and treatment of primary liver cancer, and improve the standardized level of diagnosis and treatment of primary liver cancer. Let the liver cancer diagnosis and treatment demonstration center give full play to the demonstration effect, drive and influence the development of standardized diagnosis and treatment of liver cancer in medical institutions around the demonstration base in various forms, such as demonstration teaching, academic discussion, and network communication, optimize medical resources, and improve the diagnosis and treatment service ability of medical staff as a whole, so as to improve the standardized level of diagnosis and treatment of primary liver cancer, provide patients with standardized diagnosis and treatment services, and ensure the efficacy and safety of treatment. According to the research, the "three early" of tumor imaging in Longyuan for liver cancer, jointly sponsored by Chengdu High-tech Medical Association and the Radiologist Branch of Gansu Medical Association, will be held online and offline on March 6, 2022. At that time, famous medical experts from both inside and outside the province will be invited to give special academic lectures and expert discussions, providing an opportunity for the vast number of medical imaging practitioners to learn and exchange