Due to the unique structure of radiative coil elements, traditional decoupling methods face technical challenges in reducing the electromagnetic coupling of the radiative arrays. In this study, we aim to investigate the possibility of using the recently introduced induced current elimination (ICE) decoupling technique for cylindrical shaped radiative coil array designs. To evaluate the method, an eight-channel transmit/receive monopole array with the ICE decoupling, suitable for human head imaging at 7 T, was built and comparatively investigated. In vivo human head images were acquired and geometry factor maps were measured and calculated to evaluate the performance of the ICE-decoupled monopole array. Compared with the monopole array without decoupling methods, the ICE-decoupled monopole array had a higher signal-to-noise ratio and demonstrated improved parallel imaging ability. The experimental results indicate that the ICE decoupling method is a promising solution to addressing the coupling issue of radiative array at ultrahigh fields.

中文翻译：

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使用 ICE 解耦的八通道单极阵列，用于 7 T 人头 MR 成像

由于辐射线圈元件的独特结构，传统的去耦方法在降低辐射阵列的电磁耦合方面面临技术挑战。在这项研究中，我们旨在研究将最近引入的感应电流消除 (ICE) 去耦技术用于圆柱形辐射线圈阵列设计的可能性。为了评估该方法，构建了一个具有 ICE 解耦的八通道发射/接收单极阵列，适用于 7 T 的人体头部成像，并进行了比较研究。获取体内人体头部图像并测量和计算几何因子图，以评估 ICE 解耦单极阵列的性能。与没有去耦方法的单极子阵列相比，ICE 解耦单极阵列具有更高的信噪比，并显示出改进的并行成像能力。实验结果表明，ICE解耦方法是解决超高场辐射阵列耦合问题的一种有前景的解决方案。