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Computed tomography angiography (CTA) shows signals of intracranial circulatory arrest. (A) Axial-view CTA image of the arterial phase. Severe brain edema is shown. Both superficial temporal arteries are visualized. (B) Axial-view CTA image of the venous phase. In both frames, there is no enhancement of the middle cerebral arteries or the basilar artery.
