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Abstract

An MR imaging method and device in which an object to be examined is displaced at a defined speed relative to an examination zone and a plurality of sequences act on the examination zone in the presence of a steady, uniform magnetic field, each of the sequences including at least one RF pulse and possibly a phase encoding gradient, and a MR signal arising in the examination zone, after transposition to another frequency range by means of an oscillator signal, is used to produce an MR image. The method aims to enhance the quality of the MR image produced by preventing movement artefacts. This is achieved in that from one sequence to another, one or more of the frequency of the RF pulses, the frequency of the oscillator signal, and the phase position of the oscillator signal is adjusted in conformity with the position of the object to be examined relative to the examination zone so that a part of the object which is imaged in the MR image moves relative to the examination zone in synchronism with the object.

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First Claim