Emergency radiology
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CT angiography (CTA) has become a valuable tool in the assessment of suspected arterial injury in patients with penetrating lower extremity trauma. However, expensive imaging such as CTA should be judiciously utilized to ensure value-based care. We therefore assessed the yield of CTA in this setting at a level-1 trauma unit and correlated it with the clinical history provided. ⋯ There is poor correlation between clinical details provided and the presence of arterial injury at our institution. In this context, CTA serves a pivotal role in the definitive identification of arterial injury.