X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Reexamination Certificate
2011-05-24
2011-05-24
Glick, Edward J (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
C378S004000, C378S016000
Reexamination Certificate
active
07949088
ABSTRACT:
An X-ray CT apparatus includes an X-ray irradiation unit for applying X-rays based on a first X-ray tube voltage and X-rays based on a second X-ray tube voltage to a subject by being switched every one view, a projection data acquisition unit for acquiring projection data by which X-ray tube voltage information about the applied X-rays are identified, and an image reconstruction unit for identifying first energy projection data based on the first X-ray tube voltage, second energy projection data based on the second X-ray tube voltage, and transient energy projection data acquired upon switching between the first and second X-ray tube voltages based on the X-ray tube voltage information, the image reconstruction unit including a conversion processor that converts the transient energy projection data to another data using the transient energy projection data and performs image reconstruction using the data subsequent to the conversion process.
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Gohno Makoto
Nishide Akihiko
Armstrong Teasdale LLP
Corbett John M
GE Medical Systems Global Technology Company LLC
Glick Edward J
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