SOLUTIONS OF 2 PARAMAGNETIC-IONS FOR USE IN NUCLEAR MAGNETIC-RESONANCE PHANTOMS
SOLUTIONS OF 2 PARAMAGNETIC-IONS FOR USE IN NUCLEAR MAGNETIC-RESONANCE PHANTOMS
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DOI：
10.1118/1.596155
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发表时间：
1988-01-01
期刊：
影响因子：
3.8
通讯作者：
SCHNEIDERS, NJ
中科院分区：
文献类型：
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作者：
SCHNEIDERS, NJ
引入顺磁性离子来影响弛豫时间已被用于各种核磁共振 (NMR) 应用。迄今为止，核磁共振模型中使用的所有此类弛豫剂均由单一顺磁离子组成。这样做的缺点是只能根据需要调整一个弛豫时间，T1 或 T2。这项研究表明，通过正确选择两个顺磁离子，可以在很宽的值范围内独立调整 T1 和 T2。具体来说，制备了 MnCl2 和 NiCl2 溶液，同时将目标 T1 和 T2 值匹配到大约 6% 以内。
The introduction of paramagnetic ions to affect relaxation times has been used in a variety of nuclear magnetic resonance (NMR) applications. All such relaxants used in NMR phantoms to date have consisted of a single paramagnetic ion. The disadvantage of this is that only one relaxation time can be adjusted as desired, either T1 or T2. This study demonstrates that, by properly choosing two paramagnetic ions, it is possible to adjust both T1 and T2 independently over a wide range of values. Specifically, solutions of MnCl2 and NiCl2 were prepared that simultaneously matched target T1 and T2 values to within approximately 6%.