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The performance of MRI with diffusion-weighted imaging (DWI) and perfusion-weighted imaging (PWI) sequences in patients with acute ischemic stroke has greatly evolved over the past decade.1 The larger question remains: can these imaging techniques help to identify patients with meaningful amounts of salvageable brain tissue and will performing these imaging tests be worth it, both in terms of financial costs and the delay in institution of revascularization therapies?
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- © 2013 American Academy of Neurology
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