PMC4508687_01
Case 1: A: Right internal carotid angiogram. B: Left internal carotid angiogram. C: Left vertebral angiogram, on postadmission Day 6. Vasospasm (arrows).
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F1
Because of severe cerebral vasospasm in 3DCTA, the patient underwent cerebral angiography and was diagnosed with the vasospasm of bilateral internal carotid arteries, bilateral middle cerebral artery, left anterior cerebral artery, and basilar artery (Fig. 1).
PMC4508687_02
Case 2: Dissection is visible on: A: the right vertebral angiogram of the posterior inferior cerebellar artery (PICA). B: The right vertebral angiogram of the vertebral artery. C: Left vertebral angiogram after embolization of the right vertebral artery.
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F2
Because cerebral angiography revealed the dissection of the right vertebral artery proximal to the site trapped previously, the patient was operated for vertebral artery embolization (Fig. 2).
PMC4508687_03
Case 3: Left internal carotid angiogram showing traumatic carotid-cavernous fistula with the steal phenomenon (upper panel). Venous reflux is visible in the left and right superior ophthalmic vein and basilar vein. Selective intravenous coil embolization of the fistula was performed. Blood flow in the left internal carotid artery improved after embolization (lower panel).
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F3
Cerebral angiography was performed on postadmission Day 8 because of basilar skull fracture and worsening of uncontrollable headache, and contrast findings were remarkable for left internal carotid-cavernous fistula accompanied by a steal phenomenon (Fig. 3).
PMC4508687_04
Case 4: A: Left internal carotid angiogram on admission. B: An aneurysm in the left posterior communicating artery.
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F4
Concurrent cerebral angiography revealed no abnormalities (Fig. 4). Although no intracranial lesions or other abnormalities were detected on head CT and 3DCTA images, subsequent cerebral angiography revealed aneurysm formation in the left posterior communicating artery (Fig. 4).
PMC4508687_05
Case 5: Extravasation in the oral cavity is visible on a left external carotid angiogram.
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F5
After emergency puncture of the airway to treat life-threatening conditions caused by bleeding and the fracture of the mandible, we performed embolization to treat the extravasation of blood into the oral cavity from the bilateral maxillary artery (Fig. 5).