Rapid development of application-specific flexible MRI receive coils.
Rapid development of application-specific flexible MRI receive coils.
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快速开发特定应用的灵活 MRI 接收线圈。
DOI：
10.1088/1361-6560/abaffb
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发表时间：
2020-09-24
影响因子：
3.5
通讯作者：
McMillan AB
中科院分区：
文献类型：
--
作者：
Collick BD;Behzadnezhad B;Hurley SA;Mathew NK;Behdad N;Lindsay SA;Robb F;Stormont RS;McMillan AB
在过去的30年里，相控阵线圈技术发生了巨大的变化，导致通道密度和并行成像功能不断增加。当前的接收器阵列线圈是刚性的，并且通常与患者的尺寸不匹配。最近出现了柔性线圈技术的趋势，该技术更符合人体解剖结构。尽管所谓的柔性表面线圈阵列取得了进步，但这些线圈仍然相对刚性并且在设计一致性方面受到限制，损害了信噪比（SNR）的灵活性，并且没有被设计用于最佳并行成像性能。本研究的目的是报告15通道柔性足部和脚踝线圈的开发和表征，该线圈使用高度去耦的RF线圈元件快速设计和构造。通过执行SNR比和g因子测量来评价线圈性能。使用15通道线圈和市售8通道足线圈在健康志愿者中进行体内测试。该设计中使用的高度去耦元件允许针对不同患者体型（成人与儿童）的特定应用线圈的极其快速的开发和原型设计，而线圈重叠和几何形状方面的额外设计考虑最少。图像质量与市售射频线圈相当。
Over the last 30 years, there have been dramatic changes in phased array coil technology leading to increasing channel density and parallel imaging functionality. Current receiver array coils are rigid and often mismatched to patient’s size. Recently there has been a move towards flexible coil technology, which is more conformal to the human anatomy. Despite the advances of so-called flexible surface coil arrays, these coils are still relatively rigid and limited in terms of design conformability, compromising signal-to-noise (SNR) for flexibility, and are not designed for optimum parallel imaging performance. The purpose of this study is to report on the development and characterization of a 15-channel flexible foot and ankle coil, rapidly designed and constructed using highly decoupled RF coil elements. Coil performance was evaluated by performing SNR ratio and g-factor measurements. In vivo testing was performed in a healthy volunteer using both the 15-channel coil and a commercially available 8-channel foot coil. The highly decoupled elements used in this design allow for extremely rapid development and prototyping of application-specific coils for different patient sizes (adult vs child) with minimal additional design consideration in terms of coil overlap and geometry. Image quality was comparable to a commercially available RF coil.
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影响因子：
3.3
作者：
Nordmeyer-Massner, J. A.;De Zanche, N.;Pruessmann, K. P.
通讯作者：
Pruessmann, K. P.
影响因子：
16.6
作者：
Corea JR;Flynn AM;Lechêne B;Scott G;Reed GD;Shin PJ;Lustig M;Arias AC
通讯作者：
Arias AC
DOI：
10.1016/j.jmr.2018.02.013
发表时间：
2018-04
期刊：
Journal of magnetic resonance (San Diego, Calif. : 1997)
影响因子：
--
作者：
Behzadnezhad B;Collick BD;Behdad N;McMillan AB
通讯作者：
McMillan AB
DOI：
10.2463/mrms.6.29
发表时间：
2007-01-01
期刊：
Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine
影响因子：
--
作者：
Fujita, Hiroyuki
通讯作者：
Fujita, Hiroyuki
影响因子：
3.3
作者：
ROEMER, PB;EDELSTEIN, WA;MUELLER, OM
通讯作者：
MUELLER, OM