1 results about "Scout Scan" patented technology

An apparatus for performing X-ray exposure control in a computed tomography (CT) imaging system including an X-ray source is provided. The apparatus includes processing circuitry configured to acquire scout scan data from a scout scan performed on an imaging object, in a slice-by-slice manner, generate a plurality of view-group-based noise images for slices of the CT imaging system, based on the acquired scout scan data, identify an ROI with respect to which the X-ray exposure control is to be performed, determine a target noise SD to be achieved by performing the X-ray exposure control, generate a tube current modulation curve with respect to the identified ROI, based on the generated plurality of view-group-based noise images and the determined target noise SD, and perform an imaging scan on the imaging object, with a tube current applied to the X-ray source being modulated based on the generated tube current modulation curve.