Helical CT Evaluation of Internal Carotid Artery Stenoses

Helical CT for the follow-up of cervical internal carotid artery dissections.

PURPOSE The aim of this study was to assess the changes over time of internal carotid artery (ICA) dissections by using helical CT. METHODS Twenty-seven patients with 30 angiographically proved ICA dissections were followed up with helical CT at 7 to 62 months (median, 24 months) after conventional angiography. CT scans, analyzed independently by two radiologists in a blinded fashion, were ev...

A Penetrating Pellet Jeopardizing Internal Carotid Artery

CT perfusion of the neck: internal carotid artery versus external carotid artery as the reference artery.

Arterial selection for reference time-enhancement curve generation in deconvolution-based perfusion CT (PCT) studies of the head and neck is under-evaluated. This study of 11 patients with confirmed head and neck squamous cell carcinoma demonstrates significant correlation (range, r = 0.85-0.95) between perfusion parameter values derived with internal carotid artery (ICA) as compared to an exte...

Internal Carotid Artery Web: Doppler Ultrasound with CT Angiography correlation.

We present a case of an internal carotid web, detected on duplex ultrasound and confirmed by CT angiography. To our knowledge, this is only the third reported ultrasound case in the imaging literature. This vascular abnormality can cause a clinically significant carotid stenosis and is a risk factor for recurrent embolic cerebrovascular events. Due to small size and poor awareness among radiolo...

[Internal carotid artery revascularization].

Carotid endarterectomy remains the standard revascularization technique for the prevention of ischemic stroke resulting from severe carotid stenosis. Surgery is highly beneficial in patients with a symptomatic stenosis of 70% or greater that is not a total or near-total occlusion. The benefit becomes more diluted in patients with a symptomatic 50-69% stenosis, and surgery has no effect, or even...