X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Reexamination Certificate
2006-08-01
2006-08-01
Glick, Edward J. (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
C378S004000, C378S147000
Reexamination Certificate
active
07085345
ABSTRACT:
An apparatus for reducing the influence by scatter rays and improving image quality of a tomographic image. The apparatus includes an X-ray detector and a calculation/control apparatus for generating tomographic image data for a tomographic image of the subject based on the projection data. The X-ray detector includes a plurality of detector channels for detecting the radiation, extending in a two-dimensional manner in two arrangement directions, i.e., in channel and column directions, the channel direction being contained in a plane of rotation of the X-ray source, the column direction being orthogonal to the channel direction and aligned along the axis of rotation; and collimators for confining an angle at which X-rays impinge upon the detector channels, provided at borders between the detector channels adjoining in the column direction.
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European Patent Office Search Report; 154282/10236; 04255643.1-2305-; GE Medical Systems Global Technology Company LLC; 3 pgs.
Endo Masahiro et al; “Effect of Scattered Radiation on Image Noise in Cone Beam CT”; Med. Phys. 28 (4), Apr. 2001; pp. 469-474.
Armstrong Teasdale LLP
GE Medical Systems Global Technology Company LLC
Glick Edward J.
Horton Esq. Carl B.
Kiknadze Irakli
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