X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Reexamination Certificate
2007-10-09
2010-10-12
Ho, Allen C. (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
C378S098900
Reexamination Certificate
active
07813474
ABSTRACT:
A CT system includes a rotatable gantry having an opening for receiving a subject to be scanned, a rotatable gantry having an opening for receiving a subject to be scanned, an x-ray source configured to project x-rays having multiple energies toward the subject, and a generator configured to energize the x-ray source to a first voltage and configured to energize the x-ray source to a second voltage, the first voltage distinct from the second voltage. The system further includes a controller configured to cause the generator to energize the x-ray source to the first voltage for a first duration, acquire imaging data for at least one view during at least the first duration, after the first duration, cause the generator to energize the x-ray source to the second voltage for a second duration, and acquire imaging data for two or more views during at least the second duration.
REFERENCES:
patent: 5661774 (1997-08-01), Gordon et al.
patent: 6072851 (2000-06-01), Sivers
patent: 6922462 (2005-07-01), Acharya et al.
patent: 7209537 (2007-04-01), Popescu
LeBlanc James W.
Myers Thomas John
Sainath Paavana
Shaughnessy Charles Hugh
Wiedmann Uwe
Asmus Scott J.
General Electric Company
Ho Allen C.
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