| 摘要 |
<p>Methods and apparatus for reducing motion-induced artifacts in CT imaging are described. The imaging system scans a patient's heart to obtain a plurality of projection views (52), a differential projection (54) is determined from the projection views, a weighting function (56) is applied to the differential projection to minimize motion artifacts, and an inconsistency index (58) is determined from the differential projection, and the inconsistency index is used to locate an image reconstruction location (60). This method directly measures the mechanics of the heart, rather than an electrical signal and utilizes projection data to select the best locations to minimize image artifact. <IMAGE> <IMAGE></p> |
