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METHOD AND MAGNETIC RESONANCE APPARATUS TO REDUCE MOVEMENT ARTIFACTS IN MAGNETIC RESONANCE IMAGES

机译:减少磁共振图像中运动伪像的方法和磁共振装置

摘要

In a method and apparatus to reduce movement artifacts in magnetic resonance images an essentially unmoving area of a region to be imaged is located in a region of high sensitivity of a first group of individual local antennas, and a moving area is located in the region of high sensitivity of a second group of local antennas. Spatially coded magnetic resonance signals are received by a first group of the local antennas and are individually processed further. Spatially coded nuclear magnetic resonance signals are received by the second group of local antennas and are combined with a weighting, using weighting factors. The weighting factors are determined so as to reduce gradient of the weighted, combined, spatially dependent sensitivity of the local antennas of the second group.
机译:在减少磁共振图像中的运动伪像的方法和设备中,要成像的区域的基本静止区域位于第一组单个局部天线的高灵敏度区域中,并且运动区域位于第一区域的局部天线中。第二组本地天线的高灵敏度。空间编码的磁共振信号由第一组本地天线接收,并分别进行进一步处理。空间编码的核磁共振信号由第二组本地天线接收,并使用加权因子与加权合并。确定加权因子以减小第二组本地天线的加权的,组合的,空间相关的灵敏度的梯度。

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