Abstract #1805

Development of an add-on 23Na MRI platform for an existing 1H MRI scanner using a crossband repeater: Proof-of-concept

Michiru Kajiwara¹, Tomoyuki Haishi^2,3, and Yasuhiko Terada¹

¹Institute of Applied Physics, University of Tsukuba, Tsukuba, Japan, ²Department of Radiological Sciences, School of Health Sciences at Narita, International University of Health and Welfar, Narita, Japan, ³MRTechnology Inc., Tsukuba, Japan

²³Na MRI provides novel information on energy metabolism, and there are growing expectations for its application in clinical MRI. However, implementation of ²³Na MRI for existing ¹H MRI systems requires expensive dedicated transceivers and RF coils for sodium imaging. Here, we have developed an add-on crossband repeater system that can acquire ²³Na MRI signals simply by inserting it into the magnet’s bore of an existing ¹H MRI, and proved this concept by phantom and in vivo mouse experiments. This add-on platform is applicable to other ¹H MRI systems and will enhance the feasibility of ²³Na MRI in clinical practice.

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