When you go to the hospital, why do you use CT sometimes and MR sometimes, because your condition has worsened? These two seemingly similar medical imaging systems often make you “dumbfounded”? In fact, they both have their own division of labor. The following is a popular concept, CT: computerized tomography scanning technology, the use of computer technology on the object being measured tomography image reconstruction to obtain three-dimensional tomography image scanning method. MRI: A biological magnetic spin imaging technique that uses the characteristics of the spin motion of the atomic nucleus to generate a signal within an applied magnetic field after excitation by a radio frequency pulse, which is detected by a detector and input to a computer. Computer processing conversion on the screen display image. Specific duties, look at the following chart will be clear!