1. A CT imaging system comprising: a rotatable gantry having an opening therein to receive a subject to be scanned; an x-ray source disposed within the rotatable gantry and configured to project a fan beam of x-rays at a subject during CT data acquisition; and a computer programmed to: acquire CT data from an object using a plurality of detector elements; identify the CT data in each of the detector elements as one of normal data, noisy data, and saturated data; correct the saturated data using an iterative technique; and determine whether the iterative technique has converged to render a corrected image.