PMC4508701_01
a: The right ICA angiography revealed stenosis of M1 and distal ICA with prominent collateral arteries. b: The left ICA angiography exhibited stenosis of the left middle cerebral artery and the ophthalmic segment of the left ICA. ICA: internal carotid artery.
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F1
Left ICA angiography also showed middle cerebral artery (MCA) stenosis (Fig. 1).
a, b: Progressive stenosis of the left ICA in the cerebral angiography performed at an interval of 7 weeks. c: Cerebral angiography performed after stent placement showed no residual stenosis in the ophthalmic segment of the left ICA. ICA: internal carotid artery.
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F2
The left ICA stenosis had been only 30% at the angiograms several months before (Fig. 2a, b). Abbott, Illinois, USA), a DES (Xience 2.75 x 15 mm; Abbott) was deployed successfully by balloon inflation (Fig. 2c). All procedures were performed without any problem.
The 18-month follow-up cerebral angiography demonstrated progressive stenosis just distal to the previous stenting lesion. However, there was no in-stent stenosis.
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F3
Angiography demonstrated no restenosis at the stenting site but stenosis of the ICA more distal to the stenting segment and collateral vessels (Fig. 3).