Method for speeding up the scattered radiation correction in a computed tomography system
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United States of America Patent
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Sep 21, 2010
Grant Date -
May 10, 2007
app pub date -
Nov 9, 2006
filing date -
Nov 9, 2005
priority date (Note) -
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Abstract
The invention relates to a method for speeding up the scattered radiation correction in a computed tomography system with a radiation source and a detector constructed in large-area format with a number of rows of detectors, by which an object is scanned from numerous projection angles, uses the measured values for the attenuation of the radiation in generating projection data which is postprocessed for the purpose of reconstructing tomographic views, in doing which a beam hardening correction is applied directly to the projection data, whereby according to the invention the scattered radiation correction is also applied directly to the projection data.
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