Magnetic resonance tomograph for carrying out a biopsy or for therapy comprises a motor consisting of non-magnetic parts which do not produce a magnetic field during motor operation

摘要

Magnetic resonance tomograph (1) comprises a motor (8) consisting of non-magnetic parts which do not produce a magnetic field during motor operation. An independent claim is also included for a method for displaying an insertion site or marking on a body for a biopsy or therapy using the above tomography. Preferred Features: The motor has piezoelectric ceramic actuators for producing ultrasound oscillations. A spindle displaces ultrasound oscillations into a rotary movement and/or translatory movement. A positioning device (6) is arranged above a patient table (5) in the region of the magnetic center of the tomograph.