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Abstract #3907

B1 and B0 Mapping of a Micro Helix Coil at 9.4T

Mohammad Mohammadzadeh1, Hans Weber1, Nicoleta Baxan1, Vlad Badilita2, Julian Maclaren1, Jurgen Hennig1, Dominik v. Elverfeldt1

1Dept. of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, Freiburg, Germany; 2Dept. of Microsystems Engineering-IMTEK, University of Freiburg, Freiburg, Germany

In this study the performance of a five turns micro helix coil wound on an SU8 cylinder, was evaluated by mapping its 2D B1 and B0 field’s distribution. These tests are done inside doped water phantom, on a 9.4T using 3D GE sequences. B1 maps are acquired using multi flip angle MFA method and B0 mapping are performed by measuring frequency deviation inside a doped water phantom. In General, Results show that coil has enough SNR and provides minimum frequency deviation and maximum B1 uniformity across the sample and particularly at the coil center.