1. The patient before entering the examination room, the body must remove all metal objects, such as watches, keys, pens, coins, glasses and a variety of magnetic cards.

2. For young children, irritability and depression phobia patients given the right amount of sedatives.

3. The best fasting abdominal examination, gastrointestinal contrast agents can be served, but also can not. Available cummerbund wrapped bundle abdomen to reduce artifacts caused by respiratory motion.