X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Reexamination Certificate
2006-01-17
2006-01-17
Glick, Edward J. (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
C378S108000
Reexamination Certificate
active
06987828
ABSTRACT:
An object of the present invention is to acquire transmitted X-ray data by irradiating X-rays of appropriate doses determined for the portions of a section containing the major axis and the portions thereof containing the minor axis respectively. An X-ray irradiating/detecting device consists mainly of an X-ray irradiator that includes an X-ray tube and irradiates a fan-shaped X-ray beam, and an X-ray detector that has a plurality of X-ray detecting elements arrayed in a direction in which the fan-shaped X-ray beam spreads and that is opposed to the X-ray irradiator with an object of imaging between them. The X-ray irradiating/detecting device is rotated about the object in order to acquire transmission X-ray data stemming from a plurality of views. At this time, the dose of the X-ray beam is differentiated between predetermined angular ranges of a section of the object shaped like an oval, which extend with the minor axis of the oval section as a centerline, and the other angular ranges.
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International Search Report, dated Oct. 16, 2003, Application No. EP 03 25 1939, 3 pages.
Armstrong Teasdale LLP
GE Medical Systems Global Technology Company LLC
Glick Edward J.
Horton Esq. Carl B.
Keaney Elizabeth
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