RF coil considerations for short-T2 MRI.
RF coil considerations for short-T2 MRI.
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DOI：
10.1002/mrm.22558
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发表时间：
2010-12
影响因子：
3.3
通讯作者：
Does, Mark D.
中科院分区：
文献类型：
--
作者：
Horch, R. Adam;Wilkens, Ken;Gochberg, Daniel F.;Does, Mark D.
随着硬件和脉冲序列的不断进步，现代MRI在实际实验条件下对短T2 1H物质的信号越来越敏感。然而，传统的MRI线圈通常不是为这种类型的应用而设计的，它们通常包含富含质子的构造材料，这可能在短T2测量期间造成1H背景信号的混淆。这里示出了这样的一个示例。单独地，使用环隙式线圈来比较不同线圈构造材料和配置相对于在小动物成像系统中观察到的1H背景信号大小。在许多不同的线圈配置中，对背景信号源进行空间识别和量化。有人发现，环隙谐振器周围的结构线圈材料的类型和位置，以及线圈的屏蔽配置，是线圈的背景信号大小的关键决定因素。虽然本研究采用了环隙谐振器设计，但这些发现与MRI常用的标准体积线圈直接相关。
With continuing hardware and pulse sequence advancements, modern MRI is gaining sensitivity to signals from short-T2 1H species under practical experimental conditions. However, conventional MRI coils are typically not designed for this type of application they often contain proton-rich construction materials which may contribute confounding 1H background signal during short-T2 measurements. An example of this is shown herein. Separately, a loop-gap style coil was used to compare different coil construction materials and configurations with respect to observed 1H background signal sizes in a small animal imaging system. Background signal sources were spatially identified and quantified in a number of different coil configurations. It was found that the type and placement of structural coil materials around the loop-gap resonator, as well as the coil’s shielding configuration, are critical determinants of the coil’s background signal size. Although this study employed a loop-gap resonator design, these findings are directly relevant to standard volume coils commonly used for MRI.
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影响因子：
2.2
作者：
Idiyatullin, Djaudat;Corum, Curt;Garwood, Michael
通讯作者：
Garwood, Michael
影响因子：
3.3
作者：
Wu, Yaotang;Dai, Guangping;Chesler, David A.
通讯作者：
Chesler, David A.
影响因子：
2.5
作者：
Du, Jiang;Bydder, Mark;Chung, Christine B.
通讯作者：
Chung, Christine B.
DOI：
10.1139/cjc-76-11-1753
发表时间：
1998-11-01
期刊：
CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE
影响因子：
--
作者：
Kennedy, CB;Balcom, BJ;Mastikhin, IV
通讯作者：
Mastikhin, IV
影响因子：
3.3
作者：
Wu, YT;Ackerman, JL;Glimcher, MJ
通讯作者：
Glimcher, MJ