This course uses a process participatory and disease-centered teaching method. The content includes: the principle of image selection; the basic principle of image; the basic training on the theoretical and operating skills of conventional radiology, CT, magnetic resonance, ultrasonography, DSA and nuclear medicine imaging; and the selection of various imaging examinations. Through this course, students can master the basic theory and operating skills of various technologies in the category of medical imaging; have the ability to use various imaging diagnostic technologies for disease diagnosis of common diseases; and understand the theoretical frontiers and development trends of various professional branches of medical imaging.