Article Figures & Data
Figures
- Fig 1.
A 48-year-old male patient with an SM grade II AVM in the left cerebellar lobe. A and B, Vertebral angiogram (lateral view, arterial and late venous phase) shows arterial supply to the AVM from feeders of the left posterior inferior cerebellar artery with superficial venous drainage. C, Unobstructed image illustrates a solid Onyx cast after the embolization. D, Left vertebral angiogram (lateral view, venous phase) illustrates complete AVM occlusion after embolization through a single pedicle.
- Fig 2.
A 29-year-old female patient with an SM grade IV AVM in the right occipital lobe. A, Vertebral angiogram (lateral view) shows arterial supply from multiple feeders arising mainly from the right posterior artery with superficial venous drainage. B, Right internal carotid artery angiogram (lateral view) shows additional arterial supply to the AVM from feeders of the middle cerebral artery. C, Unobstructed image illustrates a solid Onyx cast after the embolization. D and E, Control right vertebral and carotid artery angiograms (lateral view) at 6 months after embolization illustrate persistence of complete occlusion with no evidence of recanalization. F, MR image (time-of-flight, axial) at 6 months after embolization reveals complete occlusion of the AVM without evidence of reperfusion.
- Fig 3.
A 53-year-old male patient with an SM grade I AVM in the right frontal lobe. A, Right internal carotid angiogram (lateral view) shows arterial supply to the AVM from feeders of the right pericallosal artery with superficial venous drainage. B, Right internal carotid angiogram (lateral view, early venous phase) illustrates complete AVM occlusion after embolization. C, Postembolization cerebral CT scan (axial) illustrates the Onyx cast with subtotal penetration inside the AVM nidus. D, Control right carotid artery angiogram (lateral view) at 4 months after embolization demonstrates partial recanalization of the AVM nidus with reconstitution of early venous drainage.
Tables
Characteristics No. Demographics Male 41 Female 41 Age (yr) (mean) 44.2 (15–85) Presenting symptoms Intracerebral hemorrhage 37 Seizure 18 Neurologic deficit 8 Headache 9 Incidental 10 SM scale I–II 59 III 16 IV–V 7 Note:—SM indicates Spetzler-Martin.
Location No. Frontal 10 Temporal 19 Parietal 7 Occipital 13 Frontotemporal 2 Frontoparietal 5 Temporo-occipital 2 Temporoparietal 2 Parieto-occipital 5 Intraventricular 2 Temporochoroidal 1 Basal ganglia 1 Cerebellar 13 Note:—AVMs indicates arteriovenous malformations.
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