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