title: CT quality control.
abstract: A daily quality control (QC) protocol for a GE 9800 computed tomography (CT) scanner is described which quantitatively assesses system noise, an index of high contrast resolution, and the reproducibility of CT numbers for four phantom materials. The mean values and variation for each QC parameter under normal operating conditions have been determined, and their use in assessing CT scanner performance is discussed.
mesh_terms: D011786:Quality Control; D014057:Tomography, X-Ray Computed / Q000295:instrumentation* / Q000592:standards