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Angioplasty and Stent Placement in Intracranial Atherosclerotic Stenoses and Dissections

Pedro Lylyka, José E. Cohena, Rosana Cerattoa, Angel Ferrarioa and Carlos Mirandaa

a From the Department of Neurosurgery and Interventional Neuroradiology, Eneri, Clinica Medica Belgrano, Buenos Aires, Argentina



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  		FIG 1. Angioplasty and stent placement in a lesion in the ICA territory.

A, Lateral angiogram of the left ICA shows a petrocavernous atherosclerotic lesion.

B, Lateral magnified radioscopic view demonstrates the distally placed guidewire, balloon marks, and implanted stent.

C, Postoperative angiogram reveals correction of the diseased segment.



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  		FIG 2. Angioplasty and stent placement in a lesion in the left VA.

A, Anteroposterior angiogram of a long stenotic lesion in the left VA. Note that the plaque is centered on the posteroinferior cerebellar artery (PICA) origin.

B, Postoperative anteroposterior view shows correction of the stenotic segment.

C, Close-up radioscopic oblique view demonstrates three telescoped stents fully deployed.



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  		FIG 3. Angioplasty and stent placement in a lesion in the basilar artery.

A, Anteroposterior angiogram of the right VA shows an atherosclerotic lesion of the basilar artery.

B, Immediate postoperative angiogram reveals re storation of the diseased segment. Note the intentional underdilation of the diseased segment.

C, Follow-up angiogram obtained after 12 months demonstrates no signs of in-stent stenosis.





Copyright © 2009 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X