X-ray CT apparatus and control method of X-ray CT apparatus

Details X-ray CT apparatus and control method of X-ray CT apparatus X-ray CT apparatus and control method of X-ray CT apparatus

2011-04-05

2011-04-05

Glick, Edward J (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S008000

Reexamination Certificate

active

07920671

ABSTRACT:
An X-ray CT apparatus has a setting unit, a generating unit, a calculation unit, and a determination unit. The setting unit sets a required width of a group of X-ray detection elements in a row direction, which is relatively insusceptible to an influence of a cone angle of a cone-beam X-ray. The generating unit generates accumulation data by accumulating first projection data, based on first X-ray detection elements within the required width included in the group, with same channel in the row direction in preference to second projection data based on second X-ray detection elements outside the required width included in the group. The calculation unit obtains a motion amount for each heartbeat phase based on the accumulation data. The determination unit determines a specific heartbeat phase based on the motion amount for the each heartbeat phase.

REFERENCES:
patent: 4656584 (1987-04-01), Katsumata
patent: 6137858 (2000-10-01), Horiuchi
patent: 6243438 (2001-06-01), Nahaliel et al.
patent: 6445761 (2002-09-01), Miyazaki et al.
patent: 6535572 (2003-03-01), Hsieh et al.
patent: 6996206 (2006-02-01), Hsieh et al.
patent: 7212602 (2007-05-01), Tsujii
patent: 7359535 (2008-04-01), Salla et al.
patent: 7522695 (2009-04-01), Nishide et al.
patent: 7532702 (2009-05-01), Hsieh et al.
patent: 2000-157535 (2000-06-01), None
patent: 2007-37782 (2007-02-01), None
patent: 2007-512936 (2007-05-01), None
patent: WO 2005/055829 (2005-06-01), None
L. A. Feldkamp, et al., “Practical cone-beam algorithm”, J. Opt. Soc. Am. A., vol. 1, No. 6, Jun. 1984, pp. 612-619.
Henrik Turbell, “Cone-Beam Reconstruction Using Filtered Backproject”, Linköping Studies in Science and Technology, Feb. 2001, 180 pages.
Ge Wang, et al., “A General Cone-Beam Reconstruction Algorithm”, IEEE Transactions on Medical Imaging, vol. 12, No. 3, Sep. 1993, pp. 486-496.
Gengsheng L. Zeng, et al., “A cone-beam tomography algorithm for orthogonal circle-and-line orbit”, Phys. Med. Biol., vol. 37, No. 3, 1992, pp. 563-577.

Affiliated with

Also associated with

Rating

X-ray CT apparatus and control method of X-ray CT apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with X-ray CT apparatus and control method of X-ray CT apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and X-ray CT apparatus and control method of X-ray CT apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2637824