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Once a diagnosis of transient ischemic attack has been made, vessels in the head and neck may be evaluated to look for atherosclerotic lesions that may benefit from interventions such as carotid endarterectomy. The vasculature can be evaluated through the following imaging modalities: [[magnetic resonance angiography]] (MRA), [[CT angiography]] (CTA), and [[carotid ultrasonography]]/transcranial doppler ultrasonography.<ref name="Easton6" /> Carotid ultrasonography is often used to screen for carotid artery stenosis, as it is more readily available. Since these imaging methods have variable sensitivities and specificities, more than one may be needed to help confirm the diagnosis (for example: screen for the disease with ultrasonography, and confirm with CTA).<ref name="USpreventive">{{Cite web|url=https://www.uspreventiveservicestaskforce.org/Page/Document/RecommendationStatementFinal/carotid-artery-stenosis-screening|title=Final Recommendation Statement: Carotid Artery Stenosis: Screening - US Preventive Services Task Force|website=www.uspreventiveservicestaskforce.org|language=en|access-date=2017-12-13}}</ref>

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