An MRI examination of a site takes about 15-30 minutes because the process of MRI scanning is complicated, going through pre-scanning, positioning settings, sequence settings, gradient settings, RF transmitting signals, coils receiving reflected signals, and transmitting them back to the workstation for post-processing in order to produce the final scanning signals. Moreover, there are many MRI scanning sequences, and each part of the body needs to be scanned in several sequences. Therefore, patients and their families need to be psychologically prepared before the scanning, and the body should not move around after the scanning starts, so as not to affect the quality of the image, and then consult the department to be examined for the specific operation procedures.