Decoupling method for parallel transmission RF coils and workbench test.

Galante A., Fantasia M., Sebastiani P., Sotgiu A., Alecci M.

V - Biofisica e fisica medica
GSSI Ex ISEF - Aula B - Mercoledì 25 h 16:30 - 19:00
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Parallel Transmission (PTx), a technique that permits a fine control of the MRI exciting field $B_{1}^{+}$, needs a plurality of RF coils engineered so as to reduce mutual coupling, by geometrical or electrical methods, at a negligible level. We present a novel approach to PTx RF coils design based on a simple geometrical design and an analytical decoupling procedure for an 8-channels TEM array suitable for pre-clinical scanner (mice/rat application) at 2.35 T. Numerical simulations and workbench measurements demonstrate the practical feasibility of this approach and its stability was tested against load presence and small variations of the lumped elements values.

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