MR device and MR method for localizing and/or visualizing a medical instrument provided with a passive magnet device

摘要

The invention relates to an MR device with apparatus for localizing and/or visualizing a medical instrument inserted into an object to be examined. In order to construct such a device in a more economical and more reliable manner, according to the invention, the medical instrument is provided with a magnet device which is controllable by a control unit in such a manner that information concerning the position of the magnet device in MR data sets can be specifically changed. The invention also relates to a corresponding MR method.