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Abstract #3124

Three-channel flexible phased array using circular coils with annex structure for decoupling

Jhy-Neng Tasso Yeh 1 and Fa-Hsuan Lin 1

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

For the multi-channels phased-array coils, overlapping is commonly-used as a decoupling technique for loop-type RF coils, but it not only imposes a new spatial criterion but also limit the flexibility degree on flexible application. Here we propose the idea of annex-overlapping instead of traditional loop-overlapping, apply the concept of Koch first-order fractal-shape to deform the simple circular loop with additional outstretching annexes. The MRI image results of our prototypes of three-elements PA coils on a flexible plastic sheet all demonstrated the ability of simultaneous decoupling and flexibility against deformation, provided the potential for mechanically adjustable applications.

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