Abstract #3550

Imaging with a high-channel matrix gradient coil

Kelvin Layton¹, Huijun Yu¹, Stefan Kroboth¹, Sebastian Littin¹, Feng Jia¹, and Maxim Zaitsev¹

¹Department of Radiology, Medical Physics, University Medical Center Freiburg, Freiburg, Germany

Matrix gradient coils consist of many elements that can be combined to produce a wide variety of magnetic fields for spatial encoding and shimming applications. In this work, first imaging results are presented using a newly constructed 84-channel actively shielded matrix gradient coil. The coil elements are combined in groups and driven by 12 additional gradient power amplifiers to produce approximately linear gradient fields. Images are of comparable quality to the standard clinical system with relatively little calibration of the matrix coil. The integrated system is extremely flexible and enables new research into novel encoding techniques.

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