X-ray or gamma ray systems or devices – Electronic circuit – With display or signaling
Patent
1994-01-26
1996-01-16
Hannaher, Constantine
X-ray or gamma ray systems or devices
Electronic circuit
With display or signaling
378 9812, 378 988, 378146, G21K 510
Patent
active
054855004
ABSTRACT:
A digital X-ray imaging system having an X-ray generator, an X-ray generator controller for controlling the X-ray generator, an X-ray detecting unit for detecting an X-ray transmitted through a subject, the X-ray detecting unit having an X-ray grid for shielding a scattered X-ray, a signal processor for acquiring a signal from the X-ray detecting unit and processing the signal to obtain a digital X-ray image of the subject, and a display device for displaying an image of the subject obtained by the signal processor. The system is provided with a position changing unit for changing a relative position between the X-ray detecting unit and the subject, a position change controller for controlling the position changing unit, and an imaging-sequence controller for controlling the position change controller and the X-ray generator controller. The imaging controller controls setting of each of a plurality of target imaging regions of the subject to generally a central area of an X-ray detecting plane of the X-ray detector, the X-ray detecting plane being an incident plane of the transmitted X-ray, and to set at least one imaging view field to contain an intermediate region between target imaging regions. The whole or part of a plurality of obtained digital X-ray images is used to join a single or a plurality of digital X-ray images for display.
REFERENCES:
patent: 4613983 (1986-09-01), Yedid et al.
patent: 4829552 (1989-05-01), Rossi et al.
patent: 5349625 (1994-09-01), Born et al.
Electromedica vol. 60 (1992) No. 1 pp. 2-5.
Radiology vol. 171, No. (May 1989), pp. 297-307.
Baba Rika
Onodera Yoichi
Tsuneoka Masayuki
Ueda Ken
Umetani Keiji
Hannaher Constantine
Hitachi Medical Corporation
Wong Don
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