National Research Center for Magnetic Resonance (UMRAM), Bilkent University, Ankara, Turkey.
Magn Reson Med. 2012 Feb;67(2):446-56. doi: 10.1002/mrm.23030. Epub 2011 Jun 7.
In this study, the reverse polarization method is implemented using transmit and receive arrays to improve the visibility of the interventional devices. Linearly polarized signal sources--inductively and receptively coupled radiofrequency coils--are used in the experimental setups to demonstrate the ability of the method to separate these sources from a forward polarized anatomy signal. Two different applications of the reverse polarization method are presented here: (a) catheter tracking and (b) fiducial marker visualization, in both of which transmit and receive arrays are used. The performance of the reverse polarization method was further tested with phantom and volunteer studies, and the results proved the feasibility of this method with transmit and receive arrays.
在这项研究中，采用发射和接收阵列实现反向极化方法，以提高介入设备的可视性。实验设置中使用了线极化信号源——感应和接收射频线圈——以证明该方法能够将这些源与正向极化解剖信号区分开来。这里介绍了反向极化方法的两种不同应用：(a) 导管跟踪和 (b) 基准标记可视化，两者都使用了发射和接收阵列。通过对体模和志愿者研究的进一步测试，证明了发射和接收阵列的反向极化方法的可行性。
