Off-resonance correction of MR images
Off-resonance correction of MR images
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DOI：
10.1109/42.781014
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发表时间：
1999-06-01
影响因子：
10.6
通讯作者：
Schomberg, H
中科院分区：
文献类型：
--
作者：
Schomberg, H
在磁共振成像（MRI）中，静态磁场的空间不均匀性会导致图像退化，如果重建是基于反向傅里叶变换。本文提出并讨论了一系列快速重建算法，这些算法试图通过考虑场的非均匀性来避免这种退化。其中一些算法是新算法，另一些是对已知算法的修改版本。所有这些算法的速度和准确性都用螺旋MRI进行了验证。
In magnetic resonance imaging (MRI), the spatial inhomogeneity of the static magnetic field can cause degraded images if the reconstruction is based on in verse Fourier transformation. This paper presents and discusses a range of fast reconstruction algorithms that attempt to avoid such degradation by taking the field inhomogeneity into account. Some of these algorithms are ne cv, others are modified versions of known algorithms. Speed and accuracy of all these algorithms are demonstrated using spiral MRI.