Evaluation of edge-induced streaking artifacts in CT scanners.
A phantom is presented which permits the evaluation of streaking artifacts produced in CT reconstructions by abrupt edges. Its application is demonstrated by results obtained from nine CT scanners. It is observed that even in regions where streaking is not readily apparent, edge-induced artifacts can significantly increase the variance in the reconstruction.
D005069:Evaluation Studies as Topic; D008961:Models, Structural; D013679:Technology, Radiologic; D014057:Tomography, X-Ray Computed / Q000295:instrumentation*