scholarly journals Diagnostic Accuracy of Magnetic Resonance Angiography for Internal Carotid Artery Disease

Stroke ◽  
2008 ◽  
Vol 39 (8) ◽  
pp. 2237-2248 ◽  
Author(s):  
Sarah M. Debrey ◽  
Hua Yu ◽  
John K. Lynch ◽  
Karl-Olof Lövblad ◽  
Violet L. Wright ◽  
...  
2020 ◽  
Vol 19 (4) ◽  
pp. 56-64
Author(s):  
L. Herasym ◽  
I. Tsumanets

Carotid artery disease leads to stroke in 30% of cases. The total frequency of carotid artery deformations varies from 10 to 40% depending on the results of angiographic and pathological examinations. Coiling of the internal carotid artery is associated with embryological pathology, and elongation and inflection are the result of fibromuscular dysplasia or changes that are accompanied by atherosclerotic damage to the arteries. Kinking – an artery bend at an acute angle. It can be congenital, when from early childhood there is a violation of cerebral circulation and develops over time from an elongated carotid artery. The formation of inflections contributes to hypertension, the progression of atherosclerosis. Coiling – the formation of a loop of an artery. Despite the smooth running of the loop, the changes in bleeding in it are significant. The nature of bends in coiling can vary depending on body position, blood pressure. The most common is the elongation of the internal carotid or spinal artery, which leads to the formation of smooth curves along the vessel. Elongation of the arteries is usually detected in random studies. The main etiological causes of pathological tortuosity of the internal carotid artery include: congenital deformation of the vascular wall, hypertension, osteochondrosis of the cervical vertebrae, compression of the bracheocephalic arteries, cranial nerves. The review article deals with anatomy and topography of the major vascular-nervous bundle components of the neck on the stages of early ontogenesis from the point of view of surgical correction of departures from their normal development in newborns and children of an early age. However, literary data are controversial and fragmentary concerning anatomical peculiarities of the carotid arteries, internal jugular vein, and vagus. The facts concerning synoptic correlation of the major vascular-nervous bundle components of the neck in fetuses and newborns are not systematized. Carotid artery disease leads to stroke in 30% of cases. The total frequency of carotid artery deformations varies from 10 to 40% depending on the results of angiographic and pathological examinations. 


2005 ◽  
Vol 57 (suppl_4) ◽  
pp. ONS-E400-ONS-E400 ◽  
Author(s):  
Kaya Kılıç ◽  
Metin Orakdöğen ◽  
Aram Bakırcı ◽  
Zafer Berkman

Abstract OBJECTIVE AND IMPORTANCE: The present case report is the first one to report a bilateral anastomotic artery between the internal carotid artery and the anterior communicating artery in the presence of a bilateral A1 segment, fenestrated anterior communicating artery (AComA), and associated aneurysm of the AComA, which was discovered by magnetic resonance angiography and treated surgically. CLINICAL PRESENTATION: A 38-year-old man who was previously in good health experienced a sudden onset of nuchal headache, vomiting, and confusion. Computed tomography revealed a subarachnoid hemorrhage. Magnetic resonance angiography and four-vessel angiography documented an aneurysm of the AComA and two anastomotic vessels of common origin with the ophthalmic artery, between the internal carotid artery and AComA. INTERVENTION: A fenestrated clip, introduced by a left pterional craniotomy, leaving in its loop the left A1 segment, sparing the perforating and hypothalamic arteries, excluded the aneurysm. CONCLUSION: The postoperative course was uneventful, with complete recovery. Follow-up angiograms documented the successful exclusion of the aneurysm. Defining this particular internal carotid-anterior cerebral artery anastomosis as an infraoptic anterior cerebral artery is not appropriate because there is already an A1 segment in its habitual localization. Therefore, it is also thought that, embryologically, this anomaly is not a misplaced A1 segment but the persistence of an embryological vessel such as the variation of the primitive prechiasmatic arterial anastomosis. The favorable outcome for our patient suggests that surgical treatment may be appropriate for many patients with this anomaly because it provides a complete and definitive occlusion of the aneurysm.


Neurosurgery ◽  
2014 ◽  
Vol 74 (suppl_1) ◽  
pp. S83-S91 ◽  
Author(s):  
Robert E. Harbaugh ◽  
Akshal Patel

Abstract Carotid endarterectomy is a commonly performed operation to prevent stroke in patients who have asymptomatic or symptomatic internal carotid artery atherosclerotic stenosis. Carotid angioplasty and stenting has also been advocated for treatment of these patients. In this article, we address a number of questions for which a review of available data will advance our understanding of the role of carotid endarterectomy in stroke prevention. These include the following: Are carotid endarterectomy and carotid angioplasty and stenting equivalent procedures for the treatment of carotid artery disease? Which patients should be deemed at high risk for carotid endarterectomy? Should carotid endarterectomy be an urgent procedure in symptomatic patients with severe internal carotid artery stenosis? Finally, what is the role of carotid endarterectomy in asymptomatic patients? We also review the senior author's personal experience with >2000 consecutive carotid endarterectomies, with special attention to his present approach to this operation. We believe that carotid endarterectomy, in experienced hands, is a minimally invasive operation that remains the procedure of choice for most patients with carotid artery disease who will benefit from invasive treatment.


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