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MAGNETIC RESONANCE METHOD AND APPARATUS FOR ARTIFACT PREVENTION IN FAST 3D SPIN ECHO SEQUENCES
MAGNETIC RESONANCE METHOD AND APPARATUS FOR ARTIFACT PREVENTION IN FAST 3D SPIN ECHO SEQUENCES
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机译:快速3D自旋回波序列伪影的磁共振方法和装置
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摘要
In a method and magnetic resonance (MR) apparatus for creating an MR 3D image dataset, spin echo sequences are used to acquire two raw datasets that are each undersampled, wherein the excitation pulses or the refocusing pulses radiated in the data acquisitions have an opposite phase for the two raw datasets. These two raw datasets are combined into a combined 3D raw dataset that is not undersampled, and a weighting matrix is calculated for use in calculating the raw data points that were not acquired in the first raw dataset and the raw data points not acquired in the second raw dataset. A first complete raw dataset and second complete raw dataset are thereby calculated, which are then combined. The MR 3D data is then reconstructed from tis combined raw dataset.
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