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Abstract #1708

A 12-Channel Degenerate Birdcage Body Transmit Array Coil for 1.5T MRI Scanners

Ehsan Kazemivalipour1,2, Alireza Sadeghi Tarakameh1,2, Ugur Yilmaz2, Volkan Acikel3, Bulent Sen3, and Ergin Atalar1,2

1Electrical and Electronics Engineering, Bilkent University, Ankara, Turkey, 2National Magnetic Resonance Research Center (UMRAM), Bilkent University, Ankara, Turkey, 3Aselsan, REHIS Power Amplifier Technologies, Ankara, Turkey

In this work, we designed and manufacture a 12-channel body birdcage degenerate transmit array coil. After determining the size of the coil, the trace thickness for each of the conductors and the location of the capacitors, an EM solver is used to find the equivalent circuit model of the coil. The capacitor values are tuned by solving the circuit model and recalculating the EM model iteratively. After reaching the minimum total reflection of 14%, we constructed the 12-channel body degenerate birdcage transmit array coil. The strongest coupling was observed between adjacent channels measuring as -15.7 dB.

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