Subtle dynamic helical scan for uniform z-resolution and noise

Details Subtle dynamic helical scan for uniform z-resolution and noise Subtle dynamic helical scan for uniform z-resolution and noise

2006-01-13

2008-08-26

Yun, Jurie (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S004000

Reexamination Certificate

active

07418075

ABSTRACT:
A computed tomography apparatus, including: an X-ray helical scanning device including an X-ray generator and an X-ray detector arranged in a gantry, the helical scanning device configured to provide a continuous scan and to obtain projection data of a scanned object arranged on a platform; and control unit configured to control at least one of the X-ray helical scanning device and the platform so as to generate the continuous scan with a helical pitch that is based on a height of a detector row of the X-ray detector projected onto an iso-center of the gantry.

REFERENCES:
patent: 5390112 (1995-02-01), Tam
patent: 7046758 (2006-05-01), Tsuji
patent: 2003/0097076 (2003-05-01), Nambu et al.
patent: 2004/0086075 (2004-05-01), Hein et al.
Chisato Kondo, et al., Real-Time Volumetric Imaging of Human Heart Without Electrocardiographic Gating by 256—Dectector Row Computed Tomography, Comput. Assist. Tomogr. vol. 29, No. 5, Sep./Oct. 2005, pp. 694-698.
Shinichiro Mori, et al., Clinical Potentials for Dynamic Contrast-Enhanced Hepatic Volumetric Cine Imaging with the Prototype 256—MDCT Scanner, AJR:185, Jul. 2005, pp. 253-256.
Shinichiro Mori, et al., Volumetric Cine Imaging for Cardiovascular Circulation Using Prototype 256—Detector Row Computed Tomography Scanner (4-Dimensional Computed Tomography), A Preliminary Study with a Porcine Model, Comput. Assist. Tomogr., vol. 29, No. 1, Jan./Feb. 2005, pp. 26-30.
Ying Liu, et al., Half-scan cone-beam CT fluoroscopy with multiple x-ray sources, 2001 Am. Assoc. Phys. Med., Medical Physics, vol. 28, No. 7, Jul. 2001, pp. 1466-1471.
Ge Wang, et al., A General Cone-Bream Reconstruction Algorithm, IEEE Transactions on Medical Imaging, vol. 12, No. 3, Sep. 1993, pp. 486-496.
Katsuyuki Taguchi, Temporal resolution and the evaluation of candidate algorithms for four-dimensional CT, Medical Physics, vol. 30, No. 4, Apr. 2003, 2003 Am. Assoc. Phys. Med., pp. 640-650.
Hiroyuki Kudo, et al., Helical-Scan Computed Tomography Using Cone-Beam Projections, Nuclear Science Symposium and Medical Imaging Conference, 1991, Conference Record of the 1991 IEEE, pp. 1958-1962.
L. A. Feldkamp, et al., Practical cone-beam algorithm, 1984 Optical Society of America, J. Opt. Soc. Am. A/vol. 1, No. 6/Jun. 1984, pp. 612-619.

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