Stroke Research and Treatment / 2012 / Article / Fig 1

Review Article

Asymptomatic and Symptomatic Carotid Stenosis: An Obsolete Classification?

Figure 1

ASCO classification of stroke etiologies. The ASCO classification for “A” (atherothrombosis), “S” (small vessel disease), and “C” (cardioembolic). The “O” (other causes) group was omitted because only 4 patients received a grade other than “0.” As all patients had Duplex/Doppler imaging and carotid stenosis, no patient had “A0” or “A9,” so these groups were omitted. The figure visualizes competing/coexisting etiologies.

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