Convolution reconstruction algorithm for multi-slice CT

Details Convolution reconstruction algorithm for multi-slice CT Convolution reconstruction algorithm for multi-slice CT

2005-03-29

2005-03-29

Bruce, David V. (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S015000, C378S901000

Reexamination Certificate

active

06873676

ABSTRACT:
A multi-slice computed tomography imaging system (10) is provided including a source (18) generating a x-ray beam (32). A detector array (20) receives the x-ray beam (32) and generates projection data. A translating table (22) having an object (12) thereon is operable to translate in relation to the source (18) and the detector array (20). The source (18) and the detector array (20) rotate about the translating table (22) as to helically scan the object (12). An image reconstructor (44) is electrically coupled to the detector array (20). The reconstructor (44) determines a set of conjugate samples from the projection data and reconstructs an image by interpolating a set of projections corresponding to at least one plane of reconstruction in response to the set of conjugate samples, using convolutional scaling to produce a set of final weights. A method of reconstructing an image of an object for the imaging system (10) is also provided.

REFERENCES:
patent: 6028908 (2000-02-01), Taguchi
patent: 6028909 (2000-02-01), Zmora
patent: 6185271 (2001-02-01), Kinsinger
patent: 6275562 (2001-08-01), He et al.
patent: 6381297 (2002-04-01), Hsieh
patent: 6385279 (2002-05-01), Toth et al.
patent: 6452996 (2002-09-01), Hsieh
patent: 6529576 (2003-03-01), Hsieh et al.

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