Clusters of Microembolic Signals: A New Form of Cerebral Microembolism Presentation in a Patient With Middle Cerebral Artery Stenosis

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Abstract

Background

Middle cerebral artery (MCA) stenosis is a rare occlusive disease in western populations, with a high risk of stroke recurrence. An artery-to-artery embolic mechanism has been argued. We report the detection of a new pattern of microembolic signals (MES) in the MCA poststenotic segment in a patient with multiple recurrent transient ischemic attacks.

Conclusions

We describe a new presentation of MES, ie, grouped in clusters of signals, that may be associated with a high risk of stroke recurrence. (Stroke. 1998;29:722-724.)

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