Computerized tomographic imaging method and system for acquiring

Details Computerized tomographic imaging method and system for acquiring Computerized tomographic imaging method and system for acquiring

1993-04-02

1995-05-02

Hayes, Gail O.

Boots, shoes, and leggings

36441317, 378 10, 128678, G06F 1500, G01N 2300, A61B 502

Patent

active

054125626

ABSTRACT:
In a helical dyamic scanning X-ray CT imaging system, an X-ray source is continuously moved on the same orbit during plural helical scanning operations by controlling a projection direction and a translation of a biological body that is to be examined medically. The helical dynamic scanning X-ray CT imaging system includes a system for helically scanning the biological body as the body is translated along a Z-axis to obtain projection image data of the body along the helically scanned path. Radiation is projected from a radiation source to the biological body being translated along the Z-direction as the radiation source simultaneously moves around the translated biological body. The helical scanning process is carried out during at least first and second helical scanning operations while detecting a radiation angle of the radiation source being detected. The helical scanning process is controlled in such a manner that a first projection angle of the radiation source at a first starting position of the first helical scanning operation is coincident with a second projection angle of the radiation source at a second starting position of the second helical scanning operation.

REFERENCES:
patent: 4630202 (1986-12-01), Mori
patent: 4994965 (1991-02-01), Crawford et al.
patent: 5073911 (1991-12-01), Ozaki et al.
patent: 5262946 (1993-11-01), Heuscher

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