Method and apparatus for CT reconstruction
AssigneeGE Medical Systems Global Technology Company, LLC
InventorGuy M. Besson
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Abstract
In one embodiment, the present invention is a method for reconstructing a scanned CT image that includes steps of: acquiring projection data of an object utilizing a flat-panel detector; and filtering and backprojecting the projection data, without radially interpolating, to reconstruct a three-dimensional image of the object. This embodiment provides direct fan-parallel, three-dimensional reconstruction of computed tomographic images without loss of resolution associated with radial interpolation, while retaining imaging quality and backprojection speed gains associated with parallel reconstruction.
Claims16
A method for reconstructing a scanned CT image comprising the steps of:
- acquiring projection data of an object utilizing a flat-panel detector having a plurality of detector cells;
- and
- filtering and backprojecting the projection data, without radially interpolating, to reconstruct a three-dimensional image of the object.
A CT imaging system having a flat panel radiation detector and a radiation source, the flat panel radiation detector having a plurality of detector cells, and said imaging system being configured to:
- acquire projection data of an object utilizing the flat-panel detector;
- and
- filter and backproject the projection data, without radially interpolating, to reconstruct a three-dimensional image of the object.
Dependencies are inferred from the claim text.