Abstract #4285

A 3He/1H Switched Frequency High-Pass Birdcage Coil for Hyperpolarized 3He Imaging in Neonates at 1.5 T

Ronald G Pratt¹, Randy O Giaquinto¹, Christopher M Ireland^1,2, Barret Daniels³, Wolfgang Loew¹, Nara S Higano^4,5, Robert Thomen⁶, Jason C Woods^4,7, and Charles L Dumoulin¹

¹Imaging Research Center/Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States, ²Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH, United States, ³CanonUSA, Cambridge, MA, United States, ⁴Pulmonary Imaging Research Center/Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States, ⁵Department of Physics, Washington University in St. Louis, St. Louis, MO, United States, ⁶Departments of Radiology and BioEngineering, University of Missouri-Columbia, Columbia, MO, United States, ⁷Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States

We report details on the fabrication and performance of a transmit/receive ³He/¹H switched frequency 16 rung high-pass birdcage coil for neonatal imaging at 1.5 Tesla. The coil enables collection of ³He images of neonatal lungs inflated with hyperpolarized ³He gas and ultra-short echo time (UTE) ¹H images. Rotation of a shaft in the coil housing shifts the coil between ³He and ¹H operating modes. ³He and UTE ¹H images of explanted lungs inflated with hyperpolarized ³He gas collected using the coil demonstrate the excellent image quality achieved with the coil.

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