Reduction of truncation caused artifacts
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United States of America Patent
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Aug 21, 1990
Grant Date -
N/A
app pub date -
May 31, 1989
filing date -
May 31, 1988
priority date (Note) -
Expired
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Abstract
The Gibb's artifact in magnetic resonance images is reduced by asymmetrically sampling acquired F.I.D. signals to obtain data, time domain filtering the obtained data with a filter that reduces overshoot, degrades resolution but increases SNR. Then obtaining symmetrical data by complex conjugating the time domain filtered data which improves the resolution, compresses the overshoot, but decreases SNR. Processing the symmetrical data to obtain images with insignificant Gibb's artifacts.
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