Abstract:Objectives
To define helical blood flow (HBF) characteristics in hemodynamically significant atherosclerotic stenosis of the internal carotid artery (ICA) by means of duplex scanning.
Methods
Twenty‐five hemodynamically significant (65.0% [range, 63.0%–69.0%]) carotid stenoses were examined in 23 patients. The severity of the stenosis was calculated by the European Carotid Surgery Trial grading method by transverse section scanning in the B‐mode. Rotational components were estimated in color flow mapping by tr… Show more
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