RT Journal Article
SR Electronic
T1 Stenting from the Vertebral Artery to the Posterior Inferior Cerebellar Artery
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 348
OP 352
DO 10.3174/ajnr.A2741
VO 33
IS 2
A1 M.J. Kim
A1 J. Chung
A1 S.L. Kim
A1 H.G. Roh
A1 B.J. Kwon
A1 B.-s. Kim
A1 T.H. Kim
A1 B.M. Kim
A1 Y.S. Shin
YR 2012
UL http://www.ajnr.org/content/33/2/348.abstract
AB BACKGROUND AND PURPOSE: There are only a few reports on the feasibility and safety of stents used in the PICA, and clinical and angiographic follow-up results have not been fully addressed. We report our experiences of treating PICA origin or vertebral artery−PICA lesions by using self-expanding stents as adjuvant or rescue therapy with angiographic and clinical follow-up results. MATERIALS AND METHODS: Six patients were treated with self-expanding stent placements from the vertebral artery to the PICA. Two patients had a vertebral artery dissecting aneurysm involving the PICA origin, 3 had vertebral artery−PICA aneurysms, and 1 had segmental stenosis of the vertebral artery harboring the origin of the PICA. The safety, feasibility, and follow-up angiographic results were retrospectively evaluated. RESULTS: All procedures were successfully performed without any procedure-related complications. None of the patients showed PICA territorial infarction on DWI posttreatment. All patients were neurologically intact during the clinical follow-up of 3–24 months following the procedure. Follow-up angiography was performed at between 6 and 12 months in 5 of the 6 patients and was scheduled for the sixth patient but was not performed. The PICA showed good patency without in-stent stenosis in all 5 patients. CONCLUSIONS: In patients with lesions of the PICA origin or vertebral artery−PICA lesions, vertebral artery-to-PICA stent placement may be an option for preserving PICA patency in selected cases. EVTendovascular treatmentPCAposterior cerebral artery