Correction of CT images for truncated or incomplete projections
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United States of America Patent
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May 23, 2006
Grant Date -
Mar 30, 2006
app pub date -
Sep 30, 2004
filing date -
Sep 30, 2004
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Abstract
A data consistency condition is derived for an array of attenuation values acquired with a fan-beam x-ray CT system. Using this data consistency condition, estimates of selected attenuation values can be calculated from the other attenuation values acquired during the scan. Such estimates reduce artifacts caused truncated data and by loss of data due to x-ray absorption.
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