Magnetic resonance imaging receiver coil decoupling using circumferential shielding structures.
We propose a flexible phased-array design using circular coils with circumferential shielding structure to achieve robust decoupling between coil elements when the array is either bended or on a flat plane. Two types of circumferential shielding were tested through numerical simulation and imaging experiment. The results demonstrated that our arrays have good decoupling between coils when they are on a curved surface with S21<; -16.72 dB. Both types perform higher SNR images than a commercially available 32-channel adult head coil array. Future work will empirically construct a multi-channel array with the number of channel matched to commercial phased array in order to validate the performance in vivo.
Jhy-Neng Tasso
JT
Yeh
Fa-Hsuan Lin
D004867:Equipment Design; D006257:Head; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000295:instrumentation* / Q000379:methods*; D019047:Phantoms, Imaging; D012984:Software