CORONARY CALCIFICATION DETECTION USING RETROSPECTIVE CARDIAC GATING OF IMAGING SYSTEM

摘要

A method for generating an image of an object using data collected in a computed tomography imaging system, said system comprising an x-ray source, an x-ray detector aligned with said x-ray 1096 י" ב בסיון התשס" ד - June 1, 2004 source, and a display for displaying image reconstructed from data collected by said detector, said method comprising the steps of: determining a defined condition of the object; scanning the object with the computed tomography imaging system to obtain projection data of the object; selecting a portion of the projection data obtained while the object is in the defined condition; weighting projection data in accordance with a halfscan weighting function; and generating image data for the defined condition from the weighted data, and wherein selecting a portion of the projection data obtained while the object is in the defined condition comprises the steps of: determining an end of data point; determining a minimum data duration; and determining a begin data point utilizing the determined end of data point and the determined minimum data duration.