Patent ID: 8280137

Claim:
A computed tomography (CT) system comprising: a rotatable gantry having an opening for receiving an object to be scanned; an x-ray source coupled to the gantry and configured to project x-rays through the opening; a generator configured to energize the x-ray source to generate the x-rays; a detector having pixels therein, the detector attached to the gantry and positioned to receive the x-rays; and a computer programmed to: acquire CT data representative of an object; determine a first subset of the CT data; determine a second subset of the CT data; determine a difference between the first and second subsets of the CT data to identify a region in the object, wherein the region represents motion within the object during acquisition of the CT data; update image data reconstructed from a first portion of the first subset of the CT data and corresponding to the region; and reconstruct an image based on the updated image data and non-updated image data, wherein the non-updated image data is reconstructed from a second portion of the first subset of the CT data.