Variable speed three-dimensional imaging system

X-ray or gamma ray systems or devices – Specific application – Computerized tomography

Reexamination Certificate

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C378S193000

Reexamination Certificate

active

07817773

ABSTRACT:
A method and apparatus for imaging an object including the steps of projecting radiation from a radiation source through an object and moving the radiation source through multiple imaging positions relative to the object without stopping movement of the radiation source. Movement is accomplished while projecting radiation at more than one of the imagining positions with the source having a source velocity for at least one imaging position that is different from a source velocity for a second imaging position. Radiation transmitted through the object is also detected. Radiation may be projected while moving the radiation source through the multiple imaging positions. In addition, the velocity at which the radiation source is moved through a select imaging position may be related to a resolution desired for data collection at the select imaging position. The velocity of the radiation source may be varied within a select imaging position. Furthermore, the motion of the radiation source may be stopped at one or more of the imaging positions.

REFERENCES:
patent: 4052619 (1977-10-01), Hounsfield
patent: 4303860 (1981-12-01), Bjorkhom et al.
patent: 4323925 (1982-04-01), Abell et al.
patent: 4445117 (1984-04-01), Gaalema et al.
patent: 4852137 (1989-07-01), Mackay
patent: 4930147 (1990-05-01), Dieterlen et al.
patent: 4942597 (1990-07-01), Van Acker et al.
patent: 4970398 (1990-11-01), Scheid
patent: 4998270 (1991-03-01), Scheid et al.
patent: 5072591 (1991-12-01), Grange et al.
patent: 5142557 (1992-08-01), Toker et al.
patent: 5197294 (1993-03-01), Galvan et al.
patent: 5216250 (1993-06-01), Pellegrino et al.
patent: 5235184 (1993-08-01), Paulson
patent: 5519221 (1996-05-01), Weinberg
patent: 5533087 (1996-07-01), Snoeren
patent: 5550380 (1996-08-01), Sugawara et al.
patent: 5550386 (1996-08-01), Kojima et al.
patent: 5551244 (1996-09-01), Bailey
patent: 5596200 (1997-01-01), Sharma et al.
patent: 5604781 (1997-02-01), Suzuki et al.
patent: 5617461 (1997-04-01), Schreiner
patent: 5693948 (1997-12-01), Sayed et al.
patent: 5852646 (1998-12-01), Klotz et al.
patent: 5872828 (1999-02-01), Niklason et al.
patent: 5891959 (1999-04-01), Kunz
patent: 5896437 (1999-04-01), Ploetz
patent: 5999587 (1999-12-01), Ning et al.
patent: 6069933 (2000-05-01), Schultz
patent: 6173033 (2001-01-01), Klingenbeck-Regn et al.
patent: 6222902 (2001-04-01), Lin et al.
patent: 6236708 (2001-05-01), Lin et al.
patent: 6263041 (2001-07-01), Van Der Ende
patent: 6265736 (2001-07-01), Dillen et al.
patent: 6292530 (2001-09-01), Yavus et al.
patent: 6373917 (2002-04-01), Roder
patent: 6583420 (2003-06-01), Nelson et al.
patent: 6611575 (2003-08-01), Alyassin et al.
patent: 6618468 (2003-09-01), Klotz et al.
patent: 6744848 (2004-06-01), Stanton
patent: 6751285 (2004-06-01), Eberhard et al.
patent: 6882700 (2005-04-01), Wang et al.
patent: 6940943 (2005-09-01), Claus
patent: 6999553 (2006-02-01), Livingston
patent: 7319735 (2008-01-01), Defreitas et al.
patent: 7412026 (2008-08-01), Liu et al.
patent: 2003/0095624 (2003-05-01), Eberhard et al.
patent: 2003/0194050 (2003-10-01), Eberhard et al.
patent: 2005/0105679 (2005-05-01), Wu
patent: 2005/0129172 (2005-06-01), Mertelmeier
Hudson and Larkin (1994) “Accelerated Image Reconstruction Using Ordered Subsets of Projection Data” IEEE Transactions on Medical Imaging, 13(4):601-609.
Kamphuis and Beekman (1998) “Accelerated Iterative Transmission CT Reconstructions Using an Ordered Subsets Convex Algorithm” IEEE Transactions on Medical Imaging, 17(6):1101-1105.
Lange and Carson (1984) “EM Reconstruction Algorithms for Emission and Transmission Tomography” Journal of Computer Assisted Tomography, 8(2):306-316.
Lange and Fessler (1995) “Globally Convergent Algorithms for Maximum a Posteriori Transmission Tomography” IEEE Transactions on Image Processing, vol. 4, No. 10.
Lyon, et al. (1997) “A Maximum Entropy Method with a Priori Maximum Likelihood Constraints” The Astrophysical Journal, 478:658-662.
Manglos, et al. (1995) “Transmission Maximum-Likelihood Reconstruction with Ordered Subsets for Cone Beam CT” Physics Medicine and Biology, 40:1225-1241n.
Niklason, et al. (1998) “Digital Breast Tomosynthesis: Potentially a New Method for Breast Cancer Screening”, Digital Mammography by Nijmegen, Kluwer Academic Publishers, pp. 51-56.
Shepp and Vardi (1982) “Maximum Likelihood Reconstruction for Emission Tomography” IEEE Transactions on Medical Imaging, Mi-1(2):113-121.
Skilling and Bryan (1984) “Maximum Entropy Image Reconstruction: General Algorithm” Monthly Notices of the Royal Astronomical Society, 211:111-124.
Wu (1997) “The Maximum Entropy Method” Springer Series in Information Sciences, VII:1-327.
International Search Report prepared by the U.S. Patent and Trademark Office as International Searching Authority, for PCT Application No. PCT/US2007/082137, Jun. 9, 2008, 4 pages.

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