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Abstract #3104

Changes in neighbor and next-nearest-neighbor coupling of transmit/receive arrays in the presence of close-fitting high permittivity materials

Gillian G Haemer 1,2 , Manushka V Vaidya 1,2 , Christopher M Collins 1,2 , and Graham C Wiggins 1

1 The Center for Advanced Imaging Innovation and Research, and the Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, NY, United States, 2 The Sackler Institute of Graduate Biomedical Sciences, New York University School of Medicine, New York, NY, United States

The use of high permittivity materials (HPMs) can improve coil performance at ultra high field. Much recent experimental work performed with HPMs has been done with prefabricated coils and/or standardized clinical coils, built without the use of dielectric materials in mind. However, close-fitting transmit arrays are at risk of interacting closely with the HPM, and therefore having their performance in the presence of the HPM affected. Here we explore how HPMs proximal to a set of three geometrically decoupled coils affect their performance and decoupling.

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