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Evaluation of gradient inhomogeneity in the optimal design of gradient coils
1Department of Radiology, University of Utah Health Sciences Center, Salt Lake City 84132, USA.
Magnetic Resonance Imaging
|January 1, 1996
Abstract:
The image distortion caused by gradient inhomogeneity was derived from the image equation of Fourier MR imaging. A measurement of gradient inhomogeneity was proposed based on the amount of image distortion. Using the proposed measurement of gradient inhomogeneity in the optimal design of a z-gradient coil reduced image distortion by 39-45% compared to a previously used figure of merit in gradient coil design.