X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Reexamination Certificate
2011-02-22
2011-02-22
Glick, Edward J (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
C382S128000
Reexamination Certificate
active
07894569
ABSTRACT:
The invention relates to a medical X-ray examination apparatus (1) for performing K-edge imaging. The medical X-ray examination apparatus (1) comprises an imaging unit (21), which is configured to spectrally decompose an X-ray absorption spectrum to image the X-ray absorption spectrum as a conventional X-ray absorption image (23a) and a K-edge absorption image (23b). The conventional X-ray absorption image (23a) includes data elements representing the anatomical background of an object of interest. The K-edge absorption image (23b) includes data elements representing quantitative information of local densities of material showing K-edge absorption within the object of interest. The imaging unit (21) comprises a spatial resolution reducer for reducing the spatial resolution of the K-edge absorption image, so that with a medical X-ray examination apparatus according to the invention an increased sensitivity of the selective imaging of a K-edge absorption image is achieved as compared to the sensitivity of the selective imaging of a K-edge absorption image of a known medical X-ray examination apparatus.
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Glick Edward J
Koninklijke Philips Electronics , N.V.
Taningco Alexander H
LandOfFree
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