Interventional instrument with an adjustable visibility to the MRI image

摘要

(57) [Abstract] Magnetic resonance imaging (MRI) system includes an interventional device with a (5) an indicator element that affects the magnetic resonance image, for example, disturbing locally. Position of the interventional instrument in the patient to be examined is obtained from the local disturbance in the image caused by the interventional device. The degree of influence on the magnetic resonance image can be adjusted by rotating the direction of the static magnetic field of a magnetic resonance imaging system the interventional instrument having the indicator elements in particular. For example, the indicator element is a paramagnetic element, which may include several segments of different magnetic susceptibility.