Of the following medical exposures, the one with the highest effective dose to staff is interventional.

In the following medical irradiation, the most effective dose to the staff is interventional therapy. According to the query related platform information: interventional therapy is digital subtraction angiography, CT, ultrasound and magnetic *** vibration and other imaging equipment under the guidance and monitoring, the use of puncture needles, catheters and other interventional equipment, through the body's natural orifices or a small incision will be the specific device into the human body lesion part of the minimally invasive treatment of a series of technology in general. Interventional therapy is mainly able to treat oncological diseases such as vascular lesions. Oncological diseases include malignant tumors such as liver cancer, lung cancer, kidney cancer, pancreatic cancer, and stomach cancer.