Improvement of spiral MRI with the measured k-space trajectory
Improvement of spiral MRI with the measured k-space trajectory
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DOI：
10.1002/jmri.1880070525
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发表时间：
1997-09-01
期刊：
影响因子：
--
通讯作者：
Masaryk, T
中科院分区：
文献类型：
--
作者：
Ding, XP;Tkach, J;Masaryk, T
用自编码技术测量螺旋成像序列的k空间轨迹，用测量的k空间轨迹重建图像，图像质量明显提高。在梯度系统线性假设下，用导出的k空间轨迹重建的图像存在大量伪影。结果表明梯度系统的非线性和校正技术的有效性。
The k-space trajectory of a spiral imaging sequence was measured with a self-encoding technique, The image quality improved dramatically when reconstructed with the measured k-space trajectory, There were substantial artifacts in images reconstructed with the derived k-space trajectory under the assumption of gradient system linearity. The results indicated the nonlinearity of the gradient system and the effectiveness of the correction technique.