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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