vertebrobasilar insufficiency is the cause of cerebrovascular accidents in 20% of cases. there are few reports regarding spectral doppler indices (sdis) of vertebral arteries (vas) normal blood flow. the objective of this study was to provide basic reference data about sdis of vas normal blood flow separately and in comparison with internal carotid arteries (icas) and common carotid arteries (c...

A 50-year-old woman presented with left-sided Horner syndrome that had occurred after an extensive scuba dive 10 days before. Ultrasound of the cervical arteries showed a homogeneous, moderately echolucent, excentric thickening of the left internal carotid artery wall (the Figure, A), findings that were strongly suggestive of a several-dayold intramural carotid hematoma associated with carotid ...

Objective: Although conservative treatment is the first choice for high cervical internal carotid artery (ICA) stenosis due to spontaneous cervical ICA dissection, surgical revascularization is necessary when the disease resists conservative treatment. Although such lesions are difficult to treat by conventional carotid endarterectomy (CEA) or carotid artery stenting (CAS), they may be treated ...

Background: Neck manipulation occasionally causes stroke after trauma to the vertebral or internal carotid artery. Premanipulative tests involving cervical spine rotation or extension have been recommended to detect patients at risk of neurovascular ischemia. However, the effect of these procedures on extracranial blood flow is not well established, and their validity is thus controversial. Obj...

INTRODUCTION Branches from the cervical portion of the internal carotid artery are rare. In most cases, atherosclerotic stenosis is found at the bifurcation of the internal and external carotid arteries. However, when associated with atherosclerotic carotid artery disease, the origin of the rare branches arising from the internal carotid artery can be another site of stenosis. This report descr...

References 1. Tomsick DJ, Tomsick TA: CT demonstration of spontaneous internal carotid artery dissection. J Neurosurg 1985;63:792-793 2. Panisset M, Eidelman BH: Multiple cranial neuropathy as a feature of internal carotid artery dissection. Stroke 1990; 21:141-147 3. Lieschke GJ, Davis S, Tress BM, Ebeling P: Spontaneous internal carotid artery dissection presenting as hypoglossal nerve palsy....

Dissecting aneurysms of the vertebrobasilar system are infrequent. Most of the commonly reported cases describe iatrogenic or traumatic aneurysms of the extracranial vertebral artery. Spontaneous dissecting aneurysms of the extracranial vertebral artery are frequently associated with carotid artery lesions; however, such association is poorly documented in the literature. We describe a case of ...

BACKGROUND AND PURPOSE We hypothesized that direct cervical investigation with Power M-Mode Doppler (PMD) combined with single-gate Doppler spectral analysis (SGDSA) using a 2-MHz pulsed-wave Doppler transducer would show reasonable accuracy parameters when compared with standard color-coded carotid duplex ultrasound (CDU). METHODS We prospectively screened for cervical internal carotid arter...

OBJECTIVE The purpose of this study was to evaluate the effectiveness of contrast-enhanced ultrasound with a second-generation contrast agent in distinguishing between occlusion and pseudo-occlusion of the cervical internal carotid artery, comparing it with that of conventional Doppler ultrasound and the gold standard, computed tomography angiography. METHOD Between June 2006 and June 2012, w...

We present 2 cases of complicated mechanical thrombectomy involving tandem cervical internal carotid artery and middle cerebral artery occlusion using the Solitaire FR stent and simultaneous carotid stent angioplasty. During the procedures, the Solitaire stents containing the thrombus were wedged into the open-cell carotid stents, which were already deployed for proximal flow restoration. We de...