What are the methods of applying medical imaging technology to assist in the diagnosis of surgical diseases?

The other answer is basically spot on. Add a little more.

Almost all imaging techniques can be used to assist in the diagnosis of surgical diseases, not only diagnosis, some of them are directly involved in the process of treatment of surgical diseases.

Mammography of the breast, various surgical tests and procedures under DSA, such as ERCP, vascular interventions. Interventional procedures under ultrasound or X, CT, such as percutaneous nephroscopy, percutaneous bile duct puncture drainage and stenting.

Currently in foreign countries have hybridization operating room, basically is the integration of imaging equipment and operating room, the establishment of a new operating room mode and surgical methods, at present, there are several special hospitals in China has established the type of operating room, the function of the image is to give you a pair of eyes, so that you know what is and how to go about it.