Method and apparatus for employing multiple axial-sources

Details Method and apparatus for employing multiple axial-sources Method and apparatus for employing multiple axial-sources

2003-12-23

2009-12-29

Ho, Allen C. (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S124000, C378S134000

Reexamination Certificate

active

07639774

ABSTRACT:
A technique is provided for improving z-axis coverage and/or reducing cone beam artifacts during CT imaging. Multiple X-ray emission points are provided along the z-axis. Some or all of the emission points may be concurrently active. X-rays from concurrently active emission points are collimated so that X-rays from two or more emission points do not overlap on the detector. In addition, different groups of concurrently activated emission points may be sequentially or alternately activated, in conjunction with collimation, to prevent the overlap of X-rays from different emission points on the detector. In this manner, The X-rays may be timed and collimated such that the respective streams of radiation become adjacent at different locations, such as at the detector, the isocenter, or edge of the field of view.

REFERENCES:
patent: 2340500 (1944-02-01), Zunick et al.
patent: 3752989 (1973-08-01), Motz et al.
patent: 4057725 (1977-11-01), Wagner
patent: 4196352 (1980-04-01), Berninger et al.
patent: 4274005 (1981-06-01), Yamamura et al.
patent: 4284896 (1981-08-01), Stonestrom
patent: 4384359 (1983-05-01), Franke
patent: 4547892 (1985-10-01), Richey et al.
patent: 4947412 (1990-08-01), Mattson
patent: 4965726 (1990-10-01), Heuscher et al.
patent: 4991190 (1991-02-01), Mori
patent: 5166961 (1992-11-01), Brunnett
patent: 5175754 (1992-12-01), Casey et al.
patent: 5228070 (1993-07-01), Mattson
patent: 5259012 (1993-11-01), Baker et al.
patent: 5262946 (1993-11-01), Heuscher
patent: 5276614 (1994-01-01), Heuscher
patent: 5305363 (1994-04-01), Burke et al.
patent: 5377249 (1994-12-01), Wiesent et al.
patent: 5383231 (1995-01-01), Yamagishi
patent: 5396418 (1995-03-01), Heuscher
patent: 5412562 (1995-05-01), Nambu et al.
patent: 5438605 (1995-08-01), Burke et al.
patent: 5485493 (1996-01-01), Heuscher et al.
patent: 5491734 (1996-02-01), Boyd et al.
patent: 5544212 (1996-08-01), Heuscher
patent: 5570403 (1996-10-01), Yamazaki et al.
patent: 5633906 (1997-05-01), Hell et al.
patent: 5654995 (1997-08-01), Flohr
patent: 5719914 (1998-02-01), Rand et al.
patent: 5764721 (1998-06-01), Light et al.
patent: 5848117 (1998-12-01), Urchuk et al.
patent: 5966422 (1999-10-01), Dafni et al.
patent: 6002738 (1999-12-01), Cabral et al.
patent: 6047040 (2000-04-01), Hu et al.
patent: 6125167 (2000-09-01), Morgan
patent: 6130929 (2000-10-01), Saha
patent: 6183139 (2001-02-01), Solomon et al.
patent: 6208711 (2001-03-01), Rand et al.
patent: 6229870 (2001-05-01), Morgan
patent: 6233308 (2001-05-01), Hsieh
patent: 6236705 (2001-05-01), Stergiopoulos et al.
patent: 6236709 (2001-05-01), Perry et al.
patent: 6252924 (2001-06-01), Davantes et al.
patent: 6259765 (2001-07-01), Baptist
patent: 6272200 (2001-08-01), Pan et al.
patent: 6333968 (2001-12-01), Whitlock et al.
patent: 6353653 (2002-03-01), Edic
patent: 6363134 (2002-03-01), Suzuki
patent: 6385282 (2002-05-01), Francke et al.
patent: 6421412 (2002-07-01), Hsieh et al.
patent: 6453003 (2002-09-01), Springer et al.
patent: 6459755 (2002-10-01), Li
patent: 6466640 (2002-10-01), Taguchi
patent: 6522712 (2003-02-01), Yavuz et al.
patent: 6529574 (2003-03-01), Hsiech
patent: 6535570 (2003-03-01), Stergiopoulos et al.
patent: 6674837 (2004-01-01), Taskar et al.
patent: 6731716 (2004-05-01), Mihara et al.
patent: 6754300 (2004-06-01), Hsieh et al.
patent: 6760399 (2004-07-01), Malamud
patent: 6795521 (2004-09-01), Hsu et al.
patent: 6807248 (2004-10-01), Mihara et al.
patent: 6914959 (2005-07-01), Bailey et al.
patent: 6922457 (2005-07-01), Nagata et al.
patent: 6934357 (2005-08-01), Boyd et al.
patent: 6947522 (2005-09-01), Wilson et al.
patent: 6975703 (2005-12-01), Wilson et al.
patent: 7042975 (2006-05-01), Heuscher
patent: 2002/0025017 (2002-02-01), Stergiopoulos et al.
patent: 2002/0074929 (2002-06-01), Taskar et al.
patent: 2002/0085674 (2002-07-01), Price et al.
patent: 2002/0094064 (2002-07-01), Zhou et al.
patent: 2003/0043957 (2003-03-01), Pelc
patent: 2003/0118155 (2003-06-01), Ueno et al.
patent: 2004/0114710 (2004-06-01), Ozaki
patent: 2004/0136490 (2004-07-01), Edic et al.
patent: 2004/0213378 (2004-10-01), Zhou et al.
patent: 2005/0089134 (2005-04-01), Bruder et al.
patent: 2005/0100126 (2005-05-01), Mistretta et al.
patent: 2005/0135550 (2005-06-01), De Man et al.
patent: 2005/0175143 (2005-08-01), Miyazaki et al.
patent: 2006/0002506 (2006-01-01), Pelc
B. D. Cullity and S. R. Stock. Elements of X-Ray Diffraction, third edition (NJ: Prentice Hall, 2001), p. 4-11.
Lalush, David C., Feasibility of Transmission Micro-CT with Two Fan-Beam Sources, IEEE, pp. 1283-1286, Sep. 1-5, 2004, vol. 4, San Francisco, California.

Affiliated with

Also associated with

Rating

Method and apparatus for employing multiple axial-sources does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for employing multiple axial-sources, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for employing multiple axial-sources will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4148716