Frequency-selective quadrupolar MRI contrast
Frequency-selective quadrupolar MRI contrast
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DOI：
10.1016/j.ssnmr.2005.09.012
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发表时间：
2006-02-01
影响因子：
3.2
通讯作者：
Jerschow, A
中科院分区：
文献类型：
--
作者：
Ling, W;Jerschow, A
提出了一种在各向异性环境中选择性检测四极核的方法。通过使用扫频脉冲，可以将图像对比度调整到样品的各向异性程度。这些方法在钠核磁共振领域特别有用，来自局部有序环境的钠信号提供诊断信息。在固态MRI中，这些方法可用于探测样品中的结构缺陷。我们在这里展示了一维图像，其中像素对比度表明在一定频率范围内存在或不存在四极耦合。(c) 2005爱思唯尔公司版权所有。
A method for the selective detection of quadrupolar nuclei located in anisotropic environments is presented. The image contrast can be tuned to the degree of anisotropy in the sample by using frequency-swept pulsed. These methods are particularly useful in the field of sodium-MRI, where sodium signals from locally-ordered environments provide diagnostic information. In solid-state MRI, these methods could be useful for probing structural defects within the sample. We demonstrate here one-dimensional images, in which the pixel contrast indicates the presence or absence of quadrupolar coupling within a certain frequency range. (c) 2005 Elsevier Inc. All rights reserved.