Automatic correction method of couch-bending in sequence CBCT reconstruction
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United States of America Patent
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Mar 17, 2015
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May 9, 2013
app pub date -
Nov 9, 2011
filing date -
Nov 9, 2011
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Abstract
A method for correcting a volumetric image to address error due to deflection of a patient support is provided. The method includes obtaining a first set of projection data and a second set of projection data. The first and second sets of projection data are generated when the patient is at a first position and a second position, respectively, and are usable to reconstruct a first volumetric image and a second volumetric image, respectively. A corrected volumetric image is then determined based on the first and second sets of projection data.
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