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Abstract #1550

Flexible multi-turn multi-gap coaxial RF coils: enabling a large range of coil sizes

Raphaela Czerny1, Lena Nohava1,2, Roberta Frass-Kriegl1, Jacques Felblinger3, Jean-Christophe Ginefri2, and Elmar Laistler1

1Division MR Physics, Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria, 2IR4M (Imagerie par Résonance Magnétique et Multi-Modalités), Université Paris-Sud, CNRS, Université Paris-Saclay, Orsay, France, 3Université de Lorraine, Inserm, IADI, Nancy, France

Flexible single-turn coaxial RF coils with one gap in the outer and one gap in the inner conductor are restricted to a specific geometry, determined by the target resonance frequency and the specifications of the cable used. In this work we demonstrate by numerical simulations that, by combining the concept of coaxial coils with that of multiple turns and gaps transmission line resonators (MTMG TLRs) and the additional degree of freedom offered by varying the cable parameters, a large diameter range can be achieved to design 1H RF coaxial coils for most common B0 field strengths.

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