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Abstract #1624

A Dual Loop T/R-Xenon Coil for Homogenous Excitation with Improved Comfort and Size

Wolfgang Loew1, Robert Thomen1, Randy Giaquinto1, Ron Pratt1, Zackary Cleveland1, Laura Walkup1, Charles Dumoulin1, and Jason Woods1

1Imaging Research Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States

Hyperpolarized gas MRI of lungs requires homogeneous RF excitation and high SNR for proper spin-density mapping with low flip angles. A dual loop T/R 129Xe coil was designed and constructed to provide flexibility for a wide range of patient sizes while maintaining high transmit/receive homogeneity for hyperpolarized 129Xe imaging and therefore provide high-quality images for identifying and quantifying functional pulmonary deficiencies. Electromagnetic field simulations were used to analyze excitation profiles.

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