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Abstract #2783

Dual-Tuned Strip-Line Loop Array H1 / Birdcage Na23 RF Coil for 3T MRI

Seunghoon Ha1, Harry Friel2, Marijn Kruiskamp3, Orhan Nalcioglu1, 4

1Tu & Yuen Center for Functional Onco-Imaging, University of California Irvine, Irvine, CA, United States; 2Philips Healthcare, Highland Heights, OH, United States; 3Philips Healthcare, Best, Netherlands; 4Department of Cogno-Mechatronics Engineering, Pusan National University, Pusan, Korea

The common scheme of using trap circuits for dual-tuned operation results in increased coil losses as well as problems in obtaining optimal tuning and matching at both frequencies. Against these reserved problems, the duel tuned RF coil combined with strip-line coils array and a birdcage coil has proven their performance at 7T. However, a loop coil generates more uniformed B1- field and has better coil sensitivity than a strip-line coil at 3T. In the study, we construct the dual coil combined with a H1 loop coils array and a Na23 birdcage coil as well as evaluate decoupling methods to solve inter loop coupling.

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Keywords

abundant acquisition adding adjacent although animals another application array best bias birdcage blue capacitance capacitor caused circuit circuits class coil coils combination combined combining components configuration configurations connected construct constructed construction containing copper core coupling critical decoupling defined design driven drop dual education efficiently eight element engineering evaluated experimental fast feasible field fixed foundation frequencies frequency functional funded generated generates grant harry heights humans hydrogen identical improved in vivo inductive inductors inter interaction investigated isolation isolations issues legs living locations loop loops matrix minimizing ministry mutual national neighboring nuclei nucleus observable onto optimized optimum original outputs patent phantom phantoms phys position positioned positioning produced program propose proposed prototype quadrature receive recorded rectangular reduced reducing relatively republic resistance resolution resolve response rings science sensitive sensitivity separate shaped side since slice sodium soldered solid spectrum spin strip successfully suffer suffers sufficient superior supported surface systems transmit trap tuned tuning uniform variance widely window windows world