X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Reexamination Certificate
2006-11-28
2006-11-28
Ho, Allen C. (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
C378S108000, C378S109000, C378S110000
Reexamination Certificate
active
07142630
ABSTRACT:
An X-ray computed tomography apparatus includes an X-ray tube, a high voltage generator which generates a high voltage to be applied to the X-ray tube, an X-ray detector having a plurality of X-ray detection element lines, a scanogram generating unit which generates a scanogram on the basis of an output from the X-ray detector, a reconstructing unit which reconstructs an image on the basis of an output from the X-ray detector, a tube current determining unit which determines a tube current value on the basis of the pixel values of a plurality of pixels included in a two-dimensional partial region of the scanogram, and a control unit which controls the high voltage generator on the basis of the determined tube current value.
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Ho Allen C.
Kabushiki Kaisha Toshiba
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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