Since the incidence of pancreatic cancer is still on the rise worldwide, 3/4 of pancreatic cancer patients have a survival period of less than 6 months after diagnosis, which is known as the “king of cancers”. However, the prognosis of pancreatic cancer can be significantly improved if it is detected early and treated with surgery at an early stage. CT and MRI techniques for pancreatic cancer: 1. CT and MRI perfusion imaging techniques: they can quantitatively measure the blood perfusion value of tissues, and can detect the difference in blood perfusion between normal and diseased tissues, so that the pathological characteristics of the lesion can be diagnosed before the morphological changes of the tumor occur. 2.Magnetic resonance diffusion-weighted imaging (DWI): It is an imaging method to observe the microscopic diffusion motion of water molecules in living tissues by using the special sequence of MRI, which can deepen the study of tissues and pathology to a more microscopic level. DWI has shown broad application prospects in the diagnosis and differential diagnosis of focal lesions in the pancreas, liver and other organs. 3.The development and application of new contrast agents: It has greatly improved the detection and characterization ability of dynamic CT and MRI enhancement scans for tumors. 4. Molecular imaging research of tumor: It is also a trend and hot spot for future development, such as nuclear imaging, MRI technology of gene expression imaging and near-infrared fluorescence imaging can study the growth of tumor at the molecular level.