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Abstract #3320

The Multi-Loop Pile-Up Array: Concept and First Validation Experiments

Bastian Rapp1, Veronika Cap1, Andreas Reich-Rohrwig1, Elmar Laistler1, Clément Thibault2, Jean-Christophe Ginefri2, and Roberta Frass-Kriegl1
1High Field MR Center, Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria, 2Laboratoire d'imagerie biomédicale Multimodale Paris-Saclay (BioMaps), Université Paris-Saclay, Paris, France

Synopsis

Keywords: RF Arrays & Systems, RF Arrays & Systems

Motivation: Multiloop coils have been shown to provide higher superficial SNR for a larger FOV than conventional coils. However, an inhomogeneous sensitivity distribution limits their relevance for biomedical applications like skin imaging.

Goal(s): Our goal is to overcome this limitation and use the multiloop concept to develop a coil design suited for the needs of high resolution skin imaging.

Approach: Three multiloop elements are stacked with partial overlap to form a so-called pile-up array, which is compared to a single-loop reference coil in phantom MR experiments.

Results: The multiloop pile-up array shows higher SNR and facilitates parallel imaging in comparison to the reference coil.

Impact: A novel RF array concept - the multiloop pile-up array - is introduced. First validation experiments demonstrate high potential for superficial anatomical targets like the skin and subcutaneous vasculature.

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