X-ray imaging apparatus

Details X-ray imaging apparatus X-ray imaging apparatus

2007-01-23

2009-11-17

Kiknadze, Irakli (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S019000, C378S098120

Reexamination Certificate

active

07620141

ABSTRACT:
The present invention relates to an X-ray imaging apparatus using a technique for preventing artifacts appearing in 3D X-ray images. The technique involves subtraction images obtained by an energy subtraction unit serving as the basis for a 3D reconstruction process for acquiring a 3D X-ray image selectively showing a site of interest in a patient. The technique also involves an image subtraction process carried out by the energy subtraction unit according to weights set by a weight setter which selects only the site of interest in the patient, and eliminates soft tissue forming a background around the site of interest. As a result, even if body motion occurs with the soft tissue forming the background around the site of interest of the patient while subtraction images are acquired one after another by the energy subtraction unit, the body motion in the soft tissue of the patient never appears as artifacts on the subtraction images, or on a 3D X-ray image acquired on the basis of the subtraction images.

REFERENCES:
patent: 6421419 (2002-07-01), Sakaida
patent: 6754398 (2004-06-01), Yamada
patent: 2004/0022359 (2004-02-01), Acharya et al.
patent: 2004/0101089 (2004-05-01), Karau et al.
patent: 2004/0102688 (2004-05-01), Walker et al.
patent: 06-022219 (1994-01-01), None
patent: 11-188024 (1999-07-01), None
patent: 2004-065975 (2004-03-01), None
patent: 2004-174260 (2004-06-01), None
patent: 2004-188187 (2004-07-01), None
patent: 2005-058309 (2005-03-01), None
patent: 2007-021184 (2007-02-01), None
International Search Report for the Application No. PCT/JP2007/050975 mailed May 1, 2007.

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