in a patient with mechanical aortic valve prosthesis.

We report a patient with unusual MRI abnormalities that had the physical characteristics of ferromagnetic artifact. We believe that the MRI artifacts were due to microscopic embolic metal fragments, most likely from a mechanical heart valve prosthesis. Potential sources of metal emboli should be considered in patients with MRI abnormalities compatible with ferromagnetic artifact.

01/09/1999 · Prosthetic heart valve evaluation by magnetic resonance imaging ..

My husband has a St Jude # 25 aortic valve replacement. Is there any way to have an MRI to assess the damage in his left knee ? What kind of MRI? Thank you. Best Regards.


bileaflet heart valve prosthesis.

MRI becomes safer for patients with heart-valve prosthesis

They are the most long-lasting type of replacement valve, and most of these manufactured valves will last throughout the remainder of the patients’ lifetime.Patients who receive a manufactured valve will nearly always require a blood thinning medication throughout the remainder of their lives. The blood thinner will keep clots from forming, which is critical for the person with a mechanical valve because clots can lodge in the valve flaps or hinges and cause a malfunction. Clots can also break off and form into an embolism (traveling clot), which may move through the bloodstream and lodge into a vessel where it may eventually lead to problems like or .Donor Valve ImplantationA human donor valve is the least common choice and it’s most often used for someone who is suffering from an illness that affects the valve, such as . A donor valve can be expected to last 10-20 years.Tissue Valve (sometimes called ‘bioprosthetic’ valves)Tissue valves are created from animal donors’ valves or other animal tissue that's strong and flexible.