METHOD AND MAGNETIC RESONANCE APPARATUS TO ACQUIRE MAGNETIC RESONANCE DATA OF TARGET REGION INCLUDING METAL OBJECT

摘要

PROBLEM TO BE SOLVED: To reduce an artifact caused by interaction between a metal object and radio-frequency excitation.SOLUTION: The method includes acquiring magnetic resonance data of a target region (1) that includes a metal object (2) by a magnetic resonance (MR) apparatus using an MR sequence that includes at least one radio-frequency excitation to be emitted via a radio-frequency coil arrangement (3'). A radio-frequency coil arrangement (3') having multiple coil elements that can be controlled independently with different amplitude and/or phase is used. The amplitudes and/or phases of the coil elements that describe the polarization of the radio-frequency field are selected to at least partially reduce artifacts arising in the metal object (2) due to the radio-frequency excitation, with reference to a homogeneous, circular polarization of the radio-frequency field in the target region (1).