This requires specific analysis of the problem, depending on the material of the implant, if it is stainless steel, it can not be done, if the implant is titanium material, 1.5T MRI can be done. However, in general, hospital radiologists, will ask the patient to consult the original surgeon to see if the implant material is compatible with MRI. Nowadays, the packaging of cardiac stents will indicate whether they are MRI-compatible, and if they are MRI-compatible, they can be done. The material of artificial joint prosthesis is usually cobalt-chromium-molybdenum alloy, which is also stable for implantation, so MRI is also possible, and fracture internal fixation plates are mostly made of titanium alloy, which is also MRI-compatible.