Whether you can undergo an MRI after having a vascular stent implanted mainly depends on the metal material of the stent. Generally, legitimate manufacturers of affordable products will indicate in the instructions whether the stent is MRI-safe, MRI-uncertain, or MRI-unsafe. You can determine if an MRI is possible based on the instructions. Taking the most clinically used coronary stents as an example, out of the hundreds of thousands of coronary stents implanted annually in China, 70% are domestically produced, while 30% are imported. Imported stents are made from alloys such as platinum-cobalt, cobalt-nickel, or cobalt-chromium. The product manuals for these alloy stents clearly state that they are safe for MRI scans. Domestic stents, on the other hand, are made using stainless steel or alloy processes. Current research shows that stainless steel stents can safely undergo MRI scans 8 weeks after implantation. For stents made from alloy materials, MRI scans can be performed immediately after the procedure without safety concerns.