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Figure 3: Diffusion-weighted imaging and Computed tomography perfusion of a 48-year-old man with left side weakness and no neurological deterioration. Admission modified National Institutes of Health Stroke Scale was 9 (3 points for left arm, 4 for left leg, 1 each for sensory and facial droop). Patient was treated with alteplase and later started on aspirin. diffusion-weighted imaging performed 20 h from last known well showed stroke in the right corona radiata (a) without any change in time to peak on computed tomography perfusion (b and c) performed 1 h from last known well

Figure 3:  Diffusion-weighted imaging and Computed tomography perfusion of a 48-year-old man with left side weakness and no neurological deterioration. Admission modified National Institutes of Health Stroke Scale was 9 (3 points for left arm, 4 for left leg, 1 each for sensory and facial droop). Patient was treated with alteplase and later started on aspirin. diffusion-weighted imaging performed 20 h from last known well showed stroke in the right corona radiata (a) without any change in time to peak on computed tomography perfusion (b and c) performed 1 h from last known well