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Abstract #4032

Flexible torso array coil for Fast Field-Cycling MRI at 8.5 MHz

Robert S Stormont1,2, Broche M Lionel1, P. James Ross1, Gareth R. Davies1, and David J. Lurie1
1School of Medical Sciences, Aberdeen Biomedical Imaging Centre, University of Aberdeen, Aberdeen, United Kingdom, 2Magnetic Resonance Imaging, GE Healthcare, Waukesha, WI, United States

An array coil for 0.2 T reception has been developed for colon and heart studies in a FFC-MRI system. The array consists of 3 element posterior/anterior sections, with 16cm loops arranged in a “venn” pattern.

Minimizing conductor losses and noise figure over varying loading is particularly important in a low field system.

A two-turn litz arrangement was chosen offering good flexibility and Qu/Ql ratios. Interfacing electronics component topologies were simplified losses keping losses to a minimum. Matching, blocking, decoupling, and preamplification reside at element. Packaging is flexible textiles and substrates.

The resulting array conforms and retains performance with varying anatomy.

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