Thomas O'Reilly1, Danny de Gans2, Lars Leenheer2, and Andrew Webb1
1C.J. Gorter Center for High Field MRI, Leiden University Medical Center, Leiden, Netherlands, 2DEMO, Delft University of Technology, Delft, Netherlands
1C.J. Gorter Center for High Field MRI, Leiden University Medical Center, Leiden, Netherlands, 2DEMO, Delft University of Technology, Delft, Netherlands
Low field MRI systems are becoming increasingly popular as a way of providing MRI in remote regions. The electronics that are used for such a system should be low power, portable and easy to repair. In this work we present a three axis, battery powered gradient amplifier for low field MRI.
Figure 1: Photograph of the completed amplifier, including current monitors
and power supply voltage readouts on the front panel.
Figure 5: In-vivo image of the lower leg acquired on a 50 mT MRI scanner using
the described gradient amplifier to drive the gradient coils. The image is
reconstructed from a 3D TSE acquisition and has a resolution of 1x1x4mm.