Asymptomatic carotid artery detection

Asymptomatic Carotid Artery Stenosis Detection, Risk Stratification, and Management... 

Markus H, Mac Kinnon A. Asymptomatic embolization detected by Doppler ultrasound predicts stroke risk in symptomatic carotid artery stenosis. Stroke 2005 36 971-975. 

Fig. 15.12. An asymptomatic 54-year-old patient suffering from left internal carotid artery occlusion (left) shows excellent collateralization via the posterior communicating artery and a sufficient filling of the ipsilateral middle cerebral artery (middle). As a consequence, perfusion MRI (time-to-peak) detects only a slight asymmetry and delay of contrast agent arrival in the parietal parts of the middle cerebral artery territory (right)...

Asymptomatic embolization detected by Doppler ultrasound predicts stroke risk in symptomatic carotid artery stenosis. 

Efforts directed at detection of CAS in asymptomatic patients have increased after the publication of studies demonstrating that carotid endarterectomy and carotid artery stenting can prevent stroke in these patients (5-7). The benefit of CAS detection, namely stroke prevention, depends on several factors ... 

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