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Abstract #1291

14T Dual-tuned RF Probes for 13C/1H MRI Using Common-Mode Differential-Mode (CMDM) Method

Hong Shang 1 , Xiaoliang Zhang 1,2 , Yiran Chen 1 , Subramaniam Sukumar 1 , Peder Larson 1 , Daniel B Vigneron 1,2 , and Duan Xu 1,2

1 Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, United States, 2 UC Berkeley/UCSF Joint Bioengineering Program, San Francisco, CA, United States

Double-tuned radiofrequency (RF) coils are critical for multinuclear MR applications, with advantage of image co-registration of proton anatomic images and multinuclear metabolic images, and B0 shimming using proton channel for low natural abundance heteronuclear MRSI. In this work, a 14T double-tuned surface coil was built based on the CMDM method, which has been proposed for designing double-tuned RF coils with better decoupling between channels and was demonstrated to provide excellent performance and easy implementation at 7T. Bench tests and phantom imaging were performed and demonstrated excellent decoupling between the two channels, efficient impedance match, and independent tuning.

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