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Embolic stroke: CT perfusion color parameter maps

Color-coded transverse perfusion maps from computed tomography perfusion of cerebral blood flow (CBF), time to drain (TTD), and time to peak (TTP) show a large territorial perfusion delay in the right middle cerebral artery territory. A color-coded map of cerebral blood volume shows reductions of cerebral blood volume in a much smaller area containing the head of the right caudate nucleus and lentiform nucleus. (Contributed by Kristine Ann Blackham MD.)

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