What factor can affect the translational stability of an implant under MRI?

The translational stability of an implant during an MRI is influenced by both the mass and shape of the implant. The mass plays a critical role because heavier objects may experience stronger forces in a magnetic field, which can lead to increased translational motion. Conversely, the shape of the implant contributes to how it interacts with the magnetic field; for instance, implants that are streamlined may be less susceptible to movement compared to bulky or irregularly shaped ones.

When both factors are considered, they combine to determine how stable an implant will be in the magnetic environment of the MRI scanner. An implant with a significant mass and a specific shape may behave differently than one that is either lighter or has a different design. This interplay makes it essential to evaluate both the mass and shape collectively in assessing an implant's stability during MRI procedures.