Computed tomography with resolution recovery

Details Computed tomography with resolution recovery Computed tomography with resolution recovery

2008-10-31

2010-12-14

Glick, Edward J (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S062000, C378S901000

Reexamination Certificate

active

07852980

ABSTRACT:
A system and method for recovering resolution in an x-ray computed tomography system. The system includes an x-ray source, a two-dimensional sensing array, and a controller. The x-ray source projects an x-ray beam towards subject. The x-ray source includes an anode and a cathode, where the anode has a target for directing the x-ray beam. A two-dimensional sensing array receives an x-ray beam through the subject to generate an image. The target of the anode causes a shift variant blur of the x-ray beam received by the sensing array due to the angle between the target and the sensing array. The controller is in communication with the sensing array to control acquisition and processing of the image. The controller is configured to adjust for the shift variant blur of the x-ray beam.

REFERENCES:
patent: 4549265 (1985-10-01), Deckers et al.
patent: 4791934 (1988-12-01), Brunnett
patent: 4991189 (1991-02-01), Boomgaarden et al.
patent: 5131021 (1992-07-01), Gard et al.
patent: 5265142 (1993-11-01), Hsieh
patent: 5430783 (1995-07-01), Hu et al.
patent: 5469429 (1995-11-01), Yamazaki et al.
patent: 5473656 (1995-12-01), Hsieh et al.
patent: 5818896 (1998-10-01), Hsieh
patent: 5864598 (1999-01-01), Hsieh et al.
patent: 5907593 (1999-05-01), Hsieh et al.
patent: 5933471 (1999-08-01), Kalvin
patent: 5999587 (1999-12-01), Ning et al.
patent: 6014420 (2000-01-01), Ooi
patent: 6094469 (2000-07-01), Dobbs et al.
patent: 6256404 (2001-07-01), Gordon et al.
patent: 6411670 (2002-06-01), Besson
Kamm, Julie et al., Kronecker Product and SVD Approximations for Separable Spatially Variant Blurs, Apr. 1998, Dept. of Mathematics, Southern Methodist University, pp. 1-13.
J. Stayman, J. Alspaugh, M. Goodsitt, E. Christodoulou, “xCAT: A dedicated, portable, head and neck volume CT scanner,”49thAnnual AAPM Meeting, Jul. 22-26, 2007.
G. Zeng, G. Gullberg, B. Tsui et al., “Three-dimensional iterative reconstruction algorithms with attenuation and geometric point response correction,”IEEE Trans Nuc Sci.38:693:702, 1991.
Z. Liang, T. Turkington, D. Guilland et al., “Simultaneous compensation for attenuation, scatter, and detector response for SPECT reconstruction in three dimensions,”Phys. Med. Biol.vol. 37, pp. 587-603, 1992.
H. Erdogan, J. Fessler, “Ordered subsets algorithms for transmission tomography,”Phys. Med. Biol.44(11):2835-51, Nov. 1999.

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