Abstract
I read with interest the ultrasound and CT angiographic (CTA) findings of carotid web.1 This entity is recognized more often, probably due to improved resolution of various diagnostic modalities. Duplex ultrasonography and CTA can identify large webs, especially when associated with secondary mild calcification or a superimposed thrombus. Presence of larger amount of calcium interferes with the spatial resolution of CTA.2 These limitations may be overcome by high-resolution MRI (HR-MRI) of the carotid wall. HR-MRI enables visualization of the webs that are small, thin, membranous, filamentous, or diaphragm-like.3,4 A recent large acute stroke trial reported carotid web on the symptomatic side in 2.5% of patients.5 In an ongoing prospective study of HR-MRI in patients with >50% symptomatic carotid stenosis, we observed carotid webs of various morphologies in about 22%. Various protocols may help with in-depth evaluation of carotid web morphology, composition, as well as associated hemodynamic alterations. Whether carotid webs play an etiopathogenic role in cryptogenic stroke remains unknown. This important question can be answered only by larger prospective studies with uniform imaging protocols.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
