Abstract #3522

Decoupling between coils in a flexible phased-array using stacked circumferential shielding

Jhy-Neng Tasso Yeh¹ and Fa-Hsuan Lin¹

¹Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan

We propose a flexible coil array design consisting of circumferential shielding stacked on circular coils to achieve robust decoupling between coil when the array is either bended or on a flat plane. Two types of circumferential shielding were tested through numerical simulation. The results demonstrated that both types can have good decoupling on a curved surface with S₂₁ < -17.1 dB. The maximum |B₁| for the array coil with Type-II (two-parallel-ring) shielding was 63% larger than that with Type-I (single-strip) shielding. Future work will empirically construct these coils to compensate simulation inaccuracies and validate their performance In Vivo.

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