Mingdong Fan1, Sugandima Nishadi Weragoda1, Benjamin Cheung1, Michael Martens1, Labros Petropoulos2, Xiaoyu Yang2, Shinya Handa2, Noah Deetz2, Hiroyuki Fujita2, and Robert Brown1
1Case Western Reserve University, Cleveland, OH, United States, 2Quality Electrodynamics, Mayfield, OH, United States
1Case Western Reserve University, Cleveland, OH, United States, 2Quality Electrodynamics, Mayfield, OH, United States
The human body produces changes in the main magnetic field in MRI that can lead to image defects. A "shim" coil for cancelling these changes in the knee has been built and tested in an in vivo imaging experiment.
Figure 3: The pattern shown in Fig.2 is transformed in the
wiring shown over the prototype half-cylinder shim surface.
Figure 4: The volunteer imaged in a Canon Galan 3T machine for
a knee-bending demonstration, emphasizing the artifact under the knee.
