Streamlined construction of a six-channel mouse array coil with 3D printing

Mechanical stability is crucial in geometric decoupling, especially for small-form-factor wire array coils because the dimensional tolerance is less forgiving. To this end, we incorporated 3D printing to streamline the development of our mouse array coil when solid wire was used. When the solid wire and the PCB were embedded inside of the 3D printed former, we were also able to not only place the array coil as close to the specimen as possible, but also able to maintain the geometric decoupling overtime. Because no glue was used, we could replace any coil components easily. SNR of phantom images acquired by the proposed mouse array coil and by a commercial Varian quadrature mouse birdcage coil were compared. We also quantitatively compared the consistency of the coil sensitivity of each array coil element.

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