SummaryBackground-Although the use of magnetic resonance imaging (MRI) for the diagnosis of acute stroke is increasing, this method has not proved more effective than computed tomography (CT) in the emergency setting. We aimed to prospectively compare CT and MRI for emergency diagnosis of acute stroke.

This clinical policy from the American College of Emergency Physicians addresses key issues in the evaluation and management of adult patients with suspected venous thromboembolism. A writing subcommittee conducted a systematic review of the literature to derive evidence-

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