Background and Purpose—Improved methods are required to identify the subgroup of patients with asymptomatic carotid stenosis who will have stroke develop. It has been suggested that impaired cerebral reactivity (CVR) may predict high risk, but no multicenter studies have examined this. Stroke. 2011; 42: 1550-1555 Published online before print April 28, 2011. Copyright © 2011 American Heart Association, Inc. All rights reserved. Print ISSN: 0039-2499. Online ISSN: 1524-4628.
BACKGROUND AND PURPOSE: A new curative embolization technique with Onyx for selected small and medium-sized superficially located brain AVMs was developed, which consists of obliteration of the nidus, including incremental occlusion of the draining veins. We report our first clinical results. Published online before print March 1, 2012, doi: 10.3174/ajnr.A2947. Copyright © 2012 American Society of Neuroradiology
BACKGROUND: Stenting for symptomatic intracranial atherosclerotic disease is a therapeutic option in patients in whom medical therapy fails. OBJECTIVE: To determine the periprocedural complication rates and mid-term restenosis rates in patients treated with balloon-expandable stents (BESs) compared with self-expanding stents (SESs). Neurosurgery: January 2012 - Volume 70 - Issue 1 - p 25–31 doi: 10.1227/NEU.0b013e31822d274d. Copyright © by the Congress of Neurological Surgeons
Objective: To report our experience with Onyx HD-500® (Micro Therapeutics, Inc., Irvine, CA, USA) in the endovascular treatment of complex intracranial aneurysms as an alternative to treatment with platinum coils.
Chronic cerebrospinal venous insufficiency (CCSVI) is a putative new theory that has been suggested by some to have a direct causative relation with the symptomatology associated with multiple sclerosis (MS) [1]. The core foundation of this theory is that there is abnormal venous drainage from the brain due to outflow obstruction in the draining jugular vein and/or azygos veins. This abnormal venous drainage, which is characterised by special ultrasound criteria, called the “venous hemodynamic insufficiency severity score” (VHISS), is said to cause intracerebral flow disturbance or outflow problems that lead to periventricular deposits [2]. Cardiovasc Intervent Radiol (2011) 34:1–2. Copiryght © The Authors
Object: The authors conducted a study to review their experience with tentorial dural arteriovenous fistulas (DAVFs) treated with transarterial endovascular embolization in which Onyx was used. Neurosurgical Focus. May 2012 / Vol. 32 / No. 5 / Page E4. DOI: 10.3171/2011.12.FOCUS11323.
This study was designed to compare the clinical and angiographic outcomes of patients with symptomatic atherosclerotic middle cerebral artery stenosis treated with balloon-mounted stents (BMS) and self-expandable Wingspan system (SES). We reviewed the 69 consecutive stent placement procedures for symptomatic atherosclerotic stenosis (≥70) in M1 segment of middle cerebral artery in 67 patients in 3 years. According to the stent types, the patients were classed as BMS and SES groups. The demographic characteristics, conventional risk factors of ischemic stroke, degree of stenosis, periprocedural complications, stent types, and clinical and angiographic outcomes were analyzed. CardioVascular and Interventional Radiology Volume 34, Number 1 (2011), 54-60, DOI: 10.1007/s00270-010-9885-z. Copiryght © Springer Science+Business Media, LLC and the Cardiovascular and Interventional Radiological Society of Europe (CIRSE) 2010
Background and Purpose—The objective of this study was to characterize demographics, treatments, and outcomes in the management of unruptured cerebral aneurysms in the United States using a national healthcare database. Stroke. 2011; 42: 1730-1735 Published online before print April 14, 2011. Copyright © 2011 American Heart Association, Inc. All rights reserved. Print ISSN: 0039-2499. Online ISSN: 1524-4628.
BACKGROUND AND PURPOSE: Serial in vivo imaging of atherosclerosis is important for understanding plaque progression and is potentially useful in predicting cardiovascular events and monitoring treatment efficacy. This prospective study aims to quantify temporal changes in carotid atherosclerotic plaque volume and plaque composition using MDCTA. Published online before print February 16, 2012, doi: 10.3174/ajnr.A2970. Copyright © 2012 American Society of Neuroradiology
BACKGROUND AND PURPOSE: The Y-stent technique, including crossing-Y and kissing-Y, is a promising therapeutic option for some complex bifurcation aneurysms. Here, its efficacy and safety are evaluated on the basis of 11 bifurcation aneurysms. Published online before print April 19, 2012, doi: 10.3174/ajnr.A2961. Copyright © 2012 American Society of Neuroradiology
Purpose: To report an updated, systematic review of medical literature from January 2003 to July 2008, on endovascular treatment (EVT) of intracranial unruptured aneurysms (UAs) (a) to Materials and Methods: assess the morbidity and case fatality rate of EVT of UAs, (b) to understand how bias can affect results, and (c) to estimate the effi cacy of EVT by using reported digital subtraction angiographic (DSA) results and clinical follow-up events. Radiology: Volume 256: Number 3—September 2010. Copiryght © RSNA, 2010
SUMMARY: Intracranial DAVFs are pathologic dural-based shunts and account for 10%–15% of all intracranial arteriovenous malformations. These malformations derive their arterial supply primarily from meningeal vessels, and the venous drainage is either via dural venous sinuses or through the cortical veins. DAVFs have a reported association with dural sinus thrombosis, venous hypertension, previous craniotomy, and trauma, though many lesions are idiopathic. The diagnosis is dependent on a high level of clinical suspicion and high-resolution imaging. Cross-sectional imaging techniques by using CT and MR imaging aid in the diagnosis, but conventional angiography remains the most accurate method for complete characterization and classification of DAVFs. The pattern of venous drainage observed on dynamic vascular imaging determines the type of DAVF and correlates with the severity of symptoms and the risk of hemorrhage. Published online before print January 12, 2012, doi: 10.3174/ajnr.A2798. Copyright © 2012 American Society of Neuroradiology
Background and Purpose—To evaluate the hemorrhage rates of cerebral arteriovenous malformations (AVM) and the risk factors of hemorrhage before and after Gamma Knife radiosurgery (GKS). Stroke. 2011; 42: 1691-1696 Published online before print April 21, 2011. Copyright © 2011 American Heart Association, Inc. All rights reserved. Print ISSN: 0039-2499. Online ISSN: 1524-4628
SUMMARY: Angiographic recurrence following endovascular therapy is an indirect measure of the potential for hemorrhage. Because patients and physicians consider recurrence to be a suboptimal outcome with some chance of future hemorrhage, much effort has been expended to reduce the incidence of recurrence. The literature regarding aneurysm recurrence following endovascular therapy, spanning 2 decades, is extensive. We will review and summarize the effort to reduce recurrence following endovascular treatment of cerebral aneurysms. Published online before print March 15, 2012, doi: 10.3174/ajnr.A3032. Copyright © 2012 American Society of Neuroradiology
SUMMARY: Cerebral aneurysms are treated to prevent hemorrhage or rehemorrhage. Angiographic recurrences following endovascular therapy have been a problem since the advent of this treatment technique, even though posttreatment hemorrhage remains rare. Notwithstanding its unclear clinical significance, angiographic recurrence remains not only a prime focus in the literature but also frequently leads to potentially risky retreatments. The literature regarding aneurysm recurrence following endovascular therapy, spanning 2 decades, is immense and immensely confusing. We review the topic of recurrence following endovascular treatment of cerebral aneurysms in an effort to distill it down to fundamental material relevant to clinical practice. Published online before print March 15, 2012, doi: 10.3174/ajnr.A2958. Copyright © 2012 American Society of Neuroradiology
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