3. In patients with acute pancreatitis, imaging is recommended to confirm the clinical diagnosis, investigate the etiology, and grade the severity of the disease . MR had the excellent resolution of soft tissue，and it has earned an ever more important role in the diagnosis of AP. With the continuous development of MR scanning techniques, the sequence of a multi-echo gradient recalled echo (GRE) T2*-weighted imaging (T2*WI), which acquires a spin echo signal, T2* relaxation acquires a gradient echo signal, is a relatively new MRI technique. The sequence of a GRE T2*WI requires high uniformity of the magnetic field, plus it can provide the T2* value, which can indirectly reflect changes in tissue biochemical components, thus it can be used for the early diagnosis quantitative diagnosis of some diseases .