Abstract
While performing carotid angiography in a 76-year-old man, we found that the right internal carotid artery repeatedly opened and closed during the examination. The patient experienced no related neurologic events. The explanation, confirmed at surgery, was that a flap associated with an atherosclerotic plaque had acted as a ball valve.
MeSH terms
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Aged
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Carotid Artery, Internal / diagnostic imaging
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Carotid Artery, Internal / surgery
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Carotid Stenosis / diagnostic imaging*
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Carotid Stenosis / surgery
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Cerebral Angiography*
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Diagnosis, Differential
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Endarterectomy, Carotid
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Humans
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Intracranial Arteriosclerosis / diagnostic imaging*
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Intracranial Arteriosclerosis / surgery
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Ischemic Attack, Transient / diagnostic imaging*
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Ischemic Attack, Transient / surgery
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Male