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. 2021 Apr;11(2):e199–e201. doi: 10.1212/CPJ.0000000000000884

Figure. CT Angiography and Perfusion, and Conventional Angiography in a Patient With COVID-19.

Figure

CT angiography showing thrombus and occlusion of the right middle cerebral artery (A) and filling defect in the left carotid bulb (B) suggesting a floating thrombus. CT perfusion showing a mismatch between cerebral blood volume (C) and mean transit time (D) suggesting ischemic penumbra in the territory of the right middle cerebral artery. Conventional angiography of the right common carotid artery (E) showing complete occlusion in the right internal carotid artery followed by complete reperfusion (F) after mechanical thrombectomy. Left carotid angiogram (G) confirms a large floating thrombus in the left carotid bulb.