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Figure 3: A 61-year-old male with left middle cerebral artery territory stroke. (a) Computed tomography brain shows hypoattenuation in the left basal ganglia. (b) Reconstructed computed tomography angiogram showing left middle cerebral artery occlusion. (c) Diffusion-weighted imaging after 24 h shows infarct corresponding to the ischemic core. (d) Rapid processing of perfusion and diffusion images showing a small core and large penumbra

Figure 3: A 61-year-old male with left middle cerebral artery territory stroke. (a) Computed tomography brain shows hypoattenuation in the left basal ganglia. (b) Reconstructed computed tomography angiogram showing left middle cerebral artery occlusion. (c) Diffusion-weighted imaging after 24 h shows infarct corresponding to the ischemic core. (d) Rapid processing of perfusion and diffusion images showing a small core and large penumbra