OBJECTIVE. CT angiography (CTA) is a noninvasive imaging technique used to evaluate cerebral vascular structures. Digital subtraction angiography (DSA), although invasive, is the gold standard for diagnosing intracranial aneurysms. The purpose of this study was to evaluate the effectiveness of CTA in the detection of intracranial aneurysms for patients with nontraumatic subarachnoid hemorrhage (SAH) in a level 1 trauma center.
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Colen et al. (2007) studied this question.
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