X-ray CT scanner

Details X-ray CT scanner X-ray CT scanner

1994-06-24

1995-03-28

Porta, David P.

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

378 8, 378205, A61B 600

Patent

active

054024625

ABSTRACT:
An X-ray CT scanner, favorable to mass screening, has a gantry in which an X-ray tube radiates an X-ray beam for a patient carrying through an opening for scanning formed therein. The X-ray tube rotates inside the gantry under scanning. The scanner has also an element for reconstructing computed tomography images with using data of the X-ray beam received through the patient. The scanner comprises a couch having a tabletop on which the patient lies down, the tabletop being movable along a longitudinal direction of the couch. Also provided are an element for carrying the tabletop from an initial position through the opening and an element for recognizing a predetermined longitudinal scan range while the tabletop is being carried. Further provided is an element for working the reconstruction element when the scan range is recognized.

REFERENCES:
patent: 3783863 (1974-01-01), Kliever
patent: 4570264 (1986-02-01), Liebetruth
patent: 4624007 (1986-11-01), Muranushi
patent: 4789929 (1988-12-01), Nishimura et al.

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