Diagnostic perfusion imaging using CT or MRI has been available for several years. One of its applications is
acute stroke diagnosis. Interventional perfusion imaging using C-arm CT is a novel eld of research. It could provide perfusion
information during catheter-guided stroke treatment in order to optimize patient management. In this survey article,
the clinical and technical background of this topic are described and rst results from in-vivo measurements are presented.
Keywords: C-arm CT, Interventional imaging, Perfusion, Stroke, Survey.
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