MRI Safety information for:

MEDTRONIC, INC.

Lumboperitoneal shunt

The Strata NSC lumboperitoneal valve is considered Magnetic Resonance Conditional in accordance with ASTM F2503. MRI systems up to 3.0 Tesla may be used any time after implantation and will not damage the valve mechanism, but can change the performance level setting. The performance level setting should always be checked before and after MRI exposure using the StrataVarius system. The results of the tests performed to assess magnetic field interactions, artifacts and heating indicated the presence of the valve should present no substantial risk to a patient undergoing an MRI procedure using the following conditions: