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Abstract #1174

An Anatomically Shaped 16-channel Receive Array Coil for UHF Shoulder Imaging at 7T

Markus W. May1,2, Luca Wessing 1,2,3, Oliver Kraff2, and Harald H. Quick1,2
1High-Field and Hybrid MR Imaging, University Hospital Essen, Essen, Germany, 2Erwin L. Hahn Institute for MRI, University of Duisburg-Essen, Essen, Germany, 3Institute of Measuring Technology, Ruhr West University of Applied Sciences, Mühlheim an der Ruhr, Germany

Synopsis

Keywords: RF Arrays & Systems, RF Arrays & Systems, Physics & Engineering, RF Arrays & Systems, Shoulder, Ultra-High‐Field MRI

Motivation: To improve the SNR and receive performance of 7T shoulder MRI with a 16ch densely populated loop array.

Goal(s): Demonstrate prototyping approach for developing an anatomically shaped and geometrically decoupled 16ch receive loop array on a planar plane and then transform it on an anatomical body model. Show improvements in receive performance inside an 8ch meander stripline transceiver array.

Approach: A total of 16-elements were constructed and arranged in a 3D-printed housing. The receive performance was compared with 8-channel TX/RX array in phantom and in-vivo measurements.

Results: The 16-channel receive array demonstrated benefits in receive performance compared to meander stripline transceiver elements.

Impact: The prototyping approach simplifies the geometrical decoupling and rendered a receive array with superior efficiency over the transceiver coil alone. Increases in SNR and g-factor performance are expected to improve clinically oriented UHF shoulder MRI at 7T.

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