X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Reexamination Certificate
2006-08-01
2009-12-08
Glick, Edward J (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
C378S004000
Reexamination Certificate
active
07630472
ABSTRACT:
An X-ray computed tomography apparatus includes an X-ray tube which generates X-rays, an X-ray detector which detects X-rays transmitted through a subject to be examined, a mechanism which continuously rotates the X-ray tube and the X-ray detector, a storage unit which stores projection data detected by the X-ray detector, a read unit which reads out projection data sets of parts of a pair spaced apart from each other by 360° from the storage unit, an index generating unit which generates a plurality of indices indicating movement of a heart on the basis of a difference between the projection data sets of the parts of the pair, a cardiac phase determination unit which determines a cardiac phase on the basis of the indices, and a reconstruction unit which reconstructs an image on the basis of a full projection data set corresponding to the determined cardiac phase.
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Oota Takamasa
Tsuyuki Masaharu
Glick Edward J
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Taningco Alexander H
Toshiba Medical Systems Corporation
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