Miniature and integrable balun for light-weight and flexible MRI RF coils

项目摘要/摘要 本课题旨在研制一种微型巴伦，以满足磁共振成像中新兴的柔性射频线圈的需要。柔性线圈 改善患者舒适度，并可形成所需的形状，以匹配感兴趣的人体解剖。 因此，与传统的刚性线圈相比，它们表现出更好的填充因子和信噪比， 尤其是在对颈髓、骨盆和手等弯曲解剖结构进行成像时。尽管 通过上述多种方法解决了制造柔性线圈中的挑战，在实践中， 制造完全柔性线圈仍然是一个悬而未决的问题，因为与线圈相关的巴伦或电缆陷阱电路 仍然僵硬而笨重。本项目的第一个目标是对微型LC巴伦进行理论分析、建造和测试。 具有一种新的拓扑结构，即LCCC巴伦。该项目的第二个目标是将LCCC巴伦与 灵活的只接收线圈和3T和7T发射/接收线圈。组件的理论分析、脚本 价值计算、电路仿真模型和印刷电路板设计将被分发，以供开放访问。这个微缩模型 LCCC巴伦可以很容易地转换为其他射频线圈设计，对整个社区都有好处。

Project Summary/Abstract This proposal is to develop a miniature balun to meet the emerging meet in flexible RF coils in MRI. Flexible coils improve patient comfort and can be formed into desired shapes to match the human anatomy of interest. Therefore, compared to conventional rigid coils, they exhibit improved filling factor and signal-to-noise ratio, especially when imaging curved anatomies such as cervical spinal cord, pelvis, and hands. Although the challenges in building flexible coils have been solved with the numerous methods mentioned above, in practice, it is still an open question to make fully flexible coils since the balun or cable trap circuits associated with coils are still rigid and bulky. The first goal of this project is to theoretically analyze, build and test a miniature LC balun with a novel topology, namely LCCC balun. The second goal of this project is to integrate the LCCC balun with flexible receive-only coils and transmit/receive coils at 3T and 7T. The theoretical analysis, script for component value calculation, circuit simulation models, and PCB designs, will be distributed for open access. This miniature LCCC balun can be easily transferred to other RF coil designs, with benefits for the entire community.