Patent ID: 7411398

Claim:
A magnetic resonance apparatus comprising: a magnetic resonance scanner comprising a radio frequency transmission and reception coil system, and a gradient coil system that generates a gradient field that is periodic in one spatial direction; a patient bed adapted in order to receive a patient thereon and in order to move said patient within said magnetic resonance scanner; said radio frequency transmission and reception coil system comprising a plurality of individually activatable coil arrays; and a control unit connected to said magnetic resonance scanner and to said patient bed that operates said magnetic resonance scanner in order to execute a magnetic resonance data acquisition sequence comprising multiple data acquisition repetition cycles, in which said control unit operates said gradient coil system in order to generate a gradient field that periodically changes with a periodicity in one spatial direction within each of said repetitions, and that operates one of said patient bed and said gradient coil system in order to produce a relative displacement in position between a patient on the patient bed and the gradient field along a spatial direction of the periodicity of the gradient field, and that individually activates said coil arrays in order to substantially avoid ambiguities in said magnetic resonance data acquired in the respective repetitions resulting from the gradient field being periodic.