Abstract #1447

An electronically tunable X-nuclei surface coil with high impedance broadband LNA

Andreas Horneff¹, Michael Eder¹, Erich Hell², Johannes Ulrici³, Benedikt Schlecker⁴, Jens Anders⁴, and Volker Rasche¹

¹Experimental Cardiovascular MRI, Ulm University Medical Center, Ulm, Germany, ²GM, Sirona Dental Systems, Bensheim, Germany, ³GME, Sirona Dental Systems, Bensheim, Germany, ⁴Institute of Smart Sensors, University of Stuttgart, Stuttgart, Germany

In this approach, we present an electronically tunable surface coil in combination with a high impedance broadband LNA for X-nuclei MRI experiments with a bandwidth between 34MHz and 104MHz. The performance of the approach was evaluated by comparison with a state of the art LNA / surface coil reference setup for hydrogen and fluorine imaging. The resulting SNR reduction was less than 4% and a mean value and standard deviation of the relative error of the sensitivity map between the reference setup and the proposed setup of µ=0.4% and σ=1.4% was observed.

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