The Department of Nuclear Medicine is a specialty that utilizes nuclear science and technology and means to diagnose and treat diseases, which belongs to the medical technology department in hospitals and is an important part of modern medicine. The Department of Nuclear Medicine diagnoses and treats diseases through professional equipment such as PET-CT, ECT, SPECT, including tumor census, tumor diffusion and metastasis, staging of tumors, immune markers of tumors, scope of lesions in organs or tissues, hemodynamics or urodynamics detection, and the scope of inflammatory diseases, which provide important value for the diagnosis and treatment of diseases. Nuclear Medicine Department can also provide special treatment for certain diseases, such as iodine¹³¹ radiation therapy for thyroid diseases, particle implantation for malignant tumors, etc., which is of great value for the treatment of diseases. Nuclear medicine is an important part of modern medicine and has irreplaceable significance.