Assessment of Decoupling between MRI Array Elements at 300MHz

摘要：

　　We numerically assessed the decoupling between magnetic resonance imaging(MRI)array elements at 300 MHz.The array was loaded by a typical human head model.A fine-tuning strategy,which mimics commonly used optimization during fabrication,was applied to arrays with inductive decoupling networks between adjacent elements.Element matching(Sxx)could also be optimized for an array lacking such decoupling networks.However,a single-resonance Sxx spectrum does not provide reliable evidence of low level array element coupling.It is not easy to define the lowest limit for element coupling that does not affect array performance.For a given array configuration and a given set of excitation modes,the power reflected by the entire array provides an excellent figure-of-merit for net array decoupling and circuit-level transmit performance.

作者: M.Kozlov R.Turner

作者单位: Max Planck Institute for Human Cognitive and Brain Sciences,Leipzig,Germany

会议类型: 国际会议

会议名称: Progress in Electromagnetics Research Symposium 2013(2013年电磁学研究新进展学术研讨会)

会议地点: 台北

会议语种:英文

页码: 1020-1024

在线出版日期: 2013-03-01（万方平台首次上网日期，不代表论文的发表时间）