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The comparability of our results with those reported in the literature regarding the CC and NASCET methods provides further evidence of the reproducibility of methods measuring anatomic features that can be visualized on an angiogram.Disease of the internal carotid artery is one of the important causes of ischemic symptoms.Measuring the narrowest portion of the internal artery relative to the normal portion of the same artery,well beyond the bulb,is a logical method.Moreover,benefits of carotid endarterectomy for patients with 70%to 99%stenosis as determined by the NASCET method have been well established in a clinical trial. Converting from the NASCET method to the CC method,given that the CC method is neither superior nor easier to calculate,is not recommended. |
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