| US 7,551,708 B2 | ||
| Method of iterative reconstruction for energy discriminating computed tomography systems | ||
| Samit Kumar Basu, Niskayuna, N.Y. (US); and Bruno Kristiaan Bernard DeMan, Clifton Park, N.Y. (US) | ||
| Assigned to General Electric Company, Schenectady, N.Y. (US) | ||
| Filed on Feb. 07, 2007, as Appl. No. 11/672,137. | ||
| Prior Publication US 2008/0187091 A1, Aug. 07, 2008 | ||
| Int. Cl. A61B 6/00 (2006.01) | ||
| U.S. Cl. 378—5 | 8 Claims |
| 1. A method of iterative reconstruction, the method comprising:
decomposing an energy-discriminating computed tomography (“EDCT”) image onto a fixed set of basis components to produce a
set of images; and
performing a sequence of iterations on the set of images, wherein the sequence of iterations includes
fixing all but one image pixel at an estimated scalar pixel value;
varying at least one component value of the one image pixel, wherein a number of component values depends on a number of images
in the set of images;
solving a system of linear equations to obtain at least one updated component value of the one image pixel; and
replacing the at least one component value of the one image pixel with the at least one updated component value.
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