Commercially available guidewires for X-ray-guided interventions are built from metal wires, usually coated by a polymer jacket. In MRI the metal parts heat up and conduct electricity. This leads to injury to the patient and the physician. Therefore, conventional guidewires are MR unsafe and must not be used in MRI.
The MaRVis platform technology integrates good material properties and concomittant elimination of their critical electrical features in MRI by using non-metallic fiber-composite materials. This proprietary technology by de novo design of medical devices obviates the use of metal cores and provides for a high degree of flexibility in their mechanical and visualization properties.