Method and apparatus for virtual subtraction of stool from registration and shape based analysis of prone and supine scans of the colon
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United States of America Patent
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Aug 11, 2009
Grant Date -
Sep 28, 2006
app pub date -
Mar 29, 2006
filing date -
Oct 31, 2003
priority date (Note) -
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Abstract
Certain embodiments of the present invention provide a system and method for identifying stool particles in virtual dissection data for a colon. A shape classification may be determined for a segmented colon by three-dimensional filtering of a prone data set and a supine data set. The shape classification may be mapped onto a prone virtual dissection image and a supine virtual dissection image. The prone data set and the supine data set may be registered using one-dimensional registration to determine a registration. Shapes may be localized based on the shape classification and the registration for the prone virtual dissection and the supine virtual dissection. A distance metric may be applied to the localized shapes to identify stool particles. The identified stool particles may be suppressed. A prone virtual dissected image and a supine virtual dissected image may be displayed having the stool particles suppressed.
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