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Revision 8 for 'Carotid artery stenosis'

Carotid artery stenosis

 A ≥70% ICA stenosis but less than near occlusion of the ICA is diagnosed when the ICA PSV is greater than 230 cm/sec and visible plaque and luminal narrowing are seen at gray-scale and color Doppler US. Additional criteria include ICA/CCA PSV ratio > 4 and ICA EDV > 100 cm/sec. The higher the Doppler parameter lies above the threshold of 230 cm/sec, the greater the likelihood of severe disease1.

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