Abstract
The maintenance of a gradient of potassium and sodium ions across the cell membranes is essential for the physiological function of the mammal organism. The measurement of the spatial distribution of pathologically changing ion concentrations of 23Na and 39K with magnetic resonance imaging offers a promising approach in clinical diagnostics to measure tissue viability. Existing studies were focused mainly on 23Na imaging as well as spectroscopy with only one post-mortem study for 39K imaging. In this paper a triple resonant RF coil setup for the rat head at 9.4T is presented for imaging of both nuclei (23Na and 39K) and the acquisition of anatomical proton images in the same experiment without moving the subject or the RF coil. In vivo MR images of 39K and 23Na in the rat brain were acquired as well as anatomical proton images in the same scanning session.
Published Version
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