Prevalence of negative CT scans in a level one trauma center

The rise of computed tomography (CT) use in trauma has become the subject of concern given the harms of CT including radiation, cost, over diagnosis and identification of incidental lesions. We developed a novel metric, the Negative CT Score, (∑CT−) which quantifies how often CT imaging identifies important injuries. Our objective was to describe the pattern of CT utilization in trauma at an urban academic level one trauma center using this...