X-ray computed tomographic apparatus, image processing...

Details X-ray computed tomographic apparatus, image processing... X-ray computed tomographic apparatus, image processing...

2007-11-20

2007-11-20

Song, Hoon (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S015000

Reexamination Certificate

active

11367461

ABSTRACT:
An X-ray computed tomographic apparatus includes a gantry unit having a detector having X-ray detection element rows along a slice direction and an X-ray tube and acquiring projection data from a subject by helical scanning, an extraction unit extracting first and second projection data sets corresponding to first and second heartbeat periods from the acquired projection data, each of the first and second projection data sets covering an angle range required for the reconstruction of one frame image, a processing unit weighting each of the extracted first and second projection data sets with a weight corresponding to a data acquisition position and generating a third data set by combining the weighted first and second projection data sets, and a reconstruction processing unit reconstructing one frame image data set on the basis of the generated third data set.

REFERENCES:
patent: 6466640 (2002-10-01), Taguchi
patent: 6526117 (2003-02-01), Okerlund et al.
patent: 7127025 (2006-10-01), Bruder et al.
patent: 2003/0002616 (2003-01-01), Cesmeli
patent: 2006/0198491 (2006-09-01), Taguchi
patent: 2001-149365 (2001-06-01), None

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