Abstract #1260

A novel interchangeable, double-tuned, twin head coil array design for 1H/23Na MR imaging and 1H/31P MR spectroscopy at 7 T

Chang-Hoon Choi¹, Airat Galiamov¹, Suk-Min Hong¹, Jörg Felder¹, Wieland A. Worthoff¹, and N. Jon Shah^1,2,3,4

¹INM-4, Forschungszentrum Juelich, Juelich, Germany, ²INM-11, Forschungszentrum Juelich, Juelich, Germany, ³JARA-BRAIN-Translational Medicine, Aachen, Germany, ⁴Department of Neurology, RWTH Aachen University, Aachen, Germany

X-nuclei MR offers unique access to important metabolic information in tissues. Multi-tuned coils are required for the X-nuclei measurements, but designing a well-performing coil is challenging. In this study, we present our novel design and performance evaluation of an interchangeable, twin, double-tuned, head coil array for ¹H/²³Na MR imaging and ¹H/³¹P MR spectroscopy at 7 T. The outer proton array was built using an alternatingly positioned 4-channel dipole antenna and a 4-channel microstrip transmission line array to improve decoupling. The inner 8-channel X-nuclei loop arrays, orthogonal to the ¹H, were designed identically to enable conventionally switching between ²³Na and ³¹P.

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