Image analysis – Applications – Biomedical applications
Reexamination Certificate
2006-12-19
2010-12-21
Johns, Andrew W (Department: 2624)
Image analysis
Applications
Biomedical applications
C382S275000, C378S098400
Reexamination Certificate
active
07856133
ABSTRACT:
The present invention provides an X-ray attenuation correction method, image generating apparatus, X-ray CT apparatus, and image generating method for correcting for the attenuation of X-ray beam at the boundary where the X-ray absorption rate of a subject is changing. Boundary information comprised of the boundary position where the X-ray absorption rate is changing and the magnitude of change is extracted from the projection information of the subject, then the boundary information is used to multiply the amount of scattered X-ray by the amount corresponding to the magnitude of change at the boundary position, to correct for the attenuation of X-ray at the boundary position. The attenuation of X-ray at the boundary position may be corrected for along with the scattered X-ray correction of the projection information, allowing alleviating artifacts developed in a tomographic image.
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Armstrong Teasdale LLP
GE Medical Systems Global Technology Company LLC
Johns Andrew W
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