However, recent research has demonstrated that the overall force generated with the valve is less than that created by the heart, and thus allows the valve to be an acceptable valve in MRI exposure, even with the 3 Tesla
magnets (the stronger
magnets used today). Obviously, the MRI cannot be used to assess the valve itself, as the metal will cause a significant amount of local image interference. But, having an MRI of your head should cause no problems from a heart standpoint.