16-CHANNEL TRANSMIT/RECEIVE TRANSMISSION LINE ARRAY FOR IMPROVED RF AT 7 TESLA

这个子项目是许多研究子项目中利用 资源由NIH/NCRR资助的中心拨款提供。子项目和 调查员(PI)可能从NIH的另一个来源获得了主要资金， 并因此可以在其他清晰的条目中表示。列出的机构是 该中心不一定是调查人员的机构。 一种新型的几何可调的收发信机阵列系统， 呈上了。几何可调阵列的一个关键特征 是引入了去耦合电容器，允许 电容的自动变化依赖于相邻电容 共振元件距离。16元组磁头阵列版本 这样一种基于传输线技术的可调线圈 与固定几何的传输线阵列进行了比较 (TLAS)在7T时具有各种大小。这一比较的重点是 关于并行成像性能、RF传输效率和 信噪比(SNR)。并行成像方面的显著进步 观察了新线圈的性能和信噪比 归因于它的可调性和个体的设计 具有三边地平面的元素。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. A novel geometrically adjustable transceiver array system is presented. A key feature of the geometrically adjustable array was the introduction of decoupling capacitors that allow for automatic change in capacitance dependent on neighboring resonant element distance. The 16-element head array version of such an adjustable coil based on transmission line technology was compared to fixed geometry transmission line arrays (TLAs) of various sizes at 7T. The focus of this comparison was on parallel imaging performance, RF transmit efficiency, and signal-to-noise ratio (SNR). Significant gains in parallel imaging performance and SNR were observed for the new coil and attributed to its adjustability and to the design of the individual elements with a three-sided ground plane.