Three-dimensional magnetic resonance image distortion correction method and system
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United States of America Patent
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Apr 9, 1991
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N/A
app pub date -
Mar 28, 1989
filing date -
Dec 16, 1986
priority date (Note) -
Expired
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Abstract
A method and system in Nuclear Magnetic Resonance (NMR) medical imaging systems corrects for three-dimensional distortions arising from the apparatus and patient specific distortions using a phantom and a helmet, both of which have fiducial markers in a three-dimensional matrix. The positions of the phantom and helmet fiducial markers are automatically detected and compared in a computer system which uses image transform algorithms to correct for the various distortions.
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