De Zanche Nicola, Massner Jurek A, Leussler Christoph, Pruessmann Klaas P
Institute for Biomedical Engineering, ETH Zurich and University of Zurich, Zurich, Switzerland.
NMR Biomed. 2008 Jul;21(6):644-54. doi: 10.1002/nbm.1237.
We describe a modular and hence flexible system for connecting MR surface coils to create a receiver array. Up to 16 individual coils of different size and shape depending on the application are plugged into a connector box that houses the control electronics. Preamplification, matching and detuning circuitry are housed on a circuit board directly attached to each coil loop. Electrical adjustments for tuning or decoupling for each coil configuration are not needed thanks to effective preamplifier decoupling provided through a Pi matching network. Radio-frequency safety and electrically stable cabling are ensured by multiple radio-frequency traps. Array modules for 1.5 and 3 T have been simulated, constructed, tested, and used for imaging experiments.
我们描述了一种模块化且因此灵活的系统，用于连接磁共振（MR）表面线圈以创建接收阵列。根据应用需求，多达16个不同尺寸和形状的单个线圈被插入一个容纳控制电子设备的连接器盒中。前置放大、匹配和解谐电路位于直接连接到每个线圈环的电路板上。由于通过π匹配网络提供了有效的前置放大器去耦，因此无需对每个线圈配置进行调谐或去耦的电气调整。多个射频陷波器确保了射频安全性和电气稳定的布线。已对用于1.5 T和3 T的阵列模块进行了模拟、构建、测试，并用于成像实验。
