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METHOD TO ACQUIRE MAGNETIC RESONANCE DATA OF A TARGET REGION INCLUDING A METAL OBJECT AND MAGNETIC RESONANCE DEVICE
METHOD TO ACQUIRE MAGNETIC RESONANCE DATA OF A TARGET REGION INCLUDING A METAL OBJECT AND MAGNETIC RESONANCE DEVICE
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机译:包含金属物体和磁共振装置的目标区域的磁共振数据的获取方法
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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).;COPYRIGHT: (C)2015,JPO&INPIT
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