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ABSTRACT


01 agosto 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. Comparison of Carotid Atherosclerotic Plaque Characteristics by High-Resolution Black-Blood MR Imaging between Patients with First-Time and Recurrent Acute Ischemic Stroke

X.S. Liu, H.L. Zhao, Y. Cao, Q. Lu and J.R. Xu

BACKGROUND AND PURPOSE: It has been shown that patients with a first ischemic stroke are at high risk of developing recurrent stroke due to carotid atherosclerotic plaque rupture. However, no one has defined the difference in plaques between initial and recurrent stroke. This study sought to investigate the characteristics of carotid plaque between patients with first-time and recurrent acute ischemic stroke by using MR imaging.

01 agosto 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. Unprotected Carotid Artery Stenting in Symptomatic Patients with High-Grade Stenosis: Results and Long-Term Follow-Up in a Single-Center Experience

R. Oteros, E. Jimenez-Gomez, F. Bravo-Rodriguez, J.J. Ochoa, R. Guerrero and F. Delgado

BACKGROUND AND PURPOSE: The use of cerebral protection during CAS is an extended practice. Paradoxically it is open to question because it can lead to potential embolic complications. The aim of this study was to evaluate the safety and efficacy of CASWPD in patients with severe symptomatic carotid artery stenosis.

01 agosto 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. Reperfusion Rates Following Intra-Arterial Thrombolysis for Acute Ischemic Stroke: The Influence of the Method for Alteplase Delivery

G.A. Christoforidis, A. Slivka, Y. Mohammad, C. Karakasis, M. Kontzialis and M. Khadir

BACKGROUND AND PURPOSE: Because alteplase does not penetrate thrombus effectively, this study examined whether a method thought to maximize surface distribution of alteplase on the offending thrombus during IATT would result in greater reperfusion rates in acute ischemic stroke.

01 agosto 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. Use of Onyx for Transarterial Balloon-Assisted Embolization of Traumatic Carotid Cavernous Fistulas: A Report of 23 Cases

Y. Yua, Q. Huanga, Y. Xu, B. Hong, W. Zhao, B. Deng, Y. Zhang and J. Liu

BACKGROUND AND PURPOSE: TCCFs are a common complication following craniofacial trauma and are usually treated by coils or detachable balloons. The use of the liquid embolic agent Onyx as the sole agent for the treatment of TCCFs has been rarely reported. Herein, we summarized the preliminary experience and effectiveness of treating TCCFs with Onyx in 23 patients.

01 agosto 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. A Comparison of 2 Stroke Devices: The New Aperio Clot-Removal Device and the Solitaire AB/FR

C. Roth, D. Junk, P. Papanagiotou, A. Keuler, H. Körner, M. Schumacher and W. Reith

BACKGROUND AND PURPOSE: Several studies have shown promising results for the use of self-expandable intracranial stents for the treatment of acute ischemic stroke. This new technique combines immediate flow restoration after stent deployment with high recanalization rates. In the present study, the safety and efficacy of the new Aperio clot-removal device was tested in comparison with the Solitaire AB device.

01 junio 2013

NEURORADIOLOGY. Selective transarterial embolization with n-butyl-2-cyanoacrylate for the treatment of arterial hemorrhage after third molar extraction

Yoshiko Sagara, Hiro Kiyosue, Shuichi Tanoue, Ryuichi Shimada, Norio Hongo, Tatsuyuki Kohno, Kenji Kawano, Hiromu Mori

Introduction: Comprehensive reports concerning selective embolization for arterial bleeding from third molar removal have not been published. We analyzed cases of arterial bleeding from third molar extraction that required transarterial embolization, and we demonstrate representative cases.

01 junio 2013

CIRCULATION. Impact of Onset-to-Reperfusion Time on Stroke Mortality. A Collaborative Pooled Analysis

Mikael Mazighi, MD, PhD; Saqib A. Chaudhry, MD; Marc Ribo, MD; Pooja Khatri, MD, MSc; David Skoloudik, MD; Maxim Mokin, MD; Julien Labreuche, BST; Elena Meseguer, MD; Sharon D. Yeatts, PhD; Adnan H. Siddiqui, MD; Joseph Broderick, MD; Carlos A. Molina, MD; Adnan I. Qureshi, MD; Pierre Amarenco, MD

Background—Onset-to-reperfusion time has been reported to be associated with clinical prognosis. However, its impact on mortality remained to be assessed. Using a collaborative pooled analysis, we examined whether early mortality after successful endovascular treatment is time dependent.

01 junio 2013

AMERICAN JOURNAL OF ROENTGENOLOGY. Improved Image Quality and Detection of Small Cerebral Infarctions With Diffusion-Tensor Trace Imaging

Keith A. Cauley, Senthur Thangasamy and Sathish K. Dundamadappa

OBJECTIVE. The purpose of this study was to test a hypothesis that routinely performed diffusion-tensor trace imaging is of sufficient image quality and sensitivity for infarct detection to safely and routinely replace standard diffusion-weighted imaging (DWI) in the clinical setting.

01 junio 2013

JOURNAL OF ENDOVASCULAR THERAPY. Intracranial Hemodynamic Stabilization Patterns After Stenting of Severe Stenosis in the Proximal Internal Carotid Artery

Jong Wook Shin , MD; Hye Seon Jeong , MD; Hee-Jung Song , MD, PhD; Jae-Hwan Lee , MD, PhD; Si Wan Choi , MD, PhD; Suk Hoon Lee , PhD; Jieun Shin , PhD; and Jei Kim , MD

Purpose: To evaluate intracranial hemodynamic stabilization patterns after carotid artery stenting (CAS) in patients having variable collateral developments before CAS.

01 junio 2013

RADIOLOGY. Pipeline for Uncoilable or Failed Aneurysms: Results from a Multicenter Clinical Trial

Tibor Becske, MD, David F. Kallmes, MD, Isil Saatci, MD, Cameron G. McDougall, MD, István Szikora, MD, PhD, Giuseppe Lanzino, MD, Christopher J. Moran, MD, Henry H. Woo, MD, Demetrius K. Lopes, MD, Aaron L. Berez, MD, Daniel J. Cher, MD, Adnan H. Siddiqui, MD, PhD, Elad I. Levy, MD, Felipe C. Albuquerque, MD, David J. Fiorella, MD, PhD, Zsolt Berentei, MD, Miklós Marősfoi, MD, Saruhan H. Cekirge, MD and Peter K. Nelson, MD

Purpose: To evaluate the safety and effectiveness of the Pipeline Embolization Device (PED; ev3/Covidien, Irvine, Calif) in the treatment of complex intracranial aneurysms.

01 junio 2013

JOURNAL OF VASCULAR AND INTERVENTIONAL RADIOLOGY. Changes of Cine Cerebrospinal Fluid Dynamics in Patients with Multiple Sclerosis Treated with Percutaneous Transluminal Angioplasty: A Case-control Study

Robert Zivadinov, MD, PhD , Christopher Magnano, MS , Roberto Galeotti, MD , Claudiu Schirda, PhD , Erica Menegatti, PhD , Bianca Weinstock-Guttman, MD , Karen Marr, RVT, RDMS , Ilaria Bartolomei, MD , Jesper Hagemeier, MS , Anna Maria Malagoni, MD, PhD , David Hojnacki, MD , Cheryl Kennedy, LMSW, MPH , Ellen Carl, PhD , Clive Beggs, PhD , Fabrizio Salvi, MD , Paolo Zamboni, MD

Purpose: To investigate characteristics of cine phase contrast-calculated cerebrospinal fluid (CSF) flow and velocity measures in patients with relapsing-remitting (RR) multiple sclerosis (MS) receiving standard medical treatment who had been diagnosed with chronic cerebrospinal venous insufficiency (CCSVI) and underwent percutaneous transluminal angioplasty (PTA).

01 junio 2013

JOURNAL OF VASCULAR SURGERY. The effect of postoperative stroke and myocardial infarction on long-term survival after carotid revascularization

Jessica P. Simons, MD, MPH , Philip P. Goodney, MD, MS , Donald T. Baril, MD , Brian W. Nolan, MD, MS , Nathanael D. Hevelone, MPH , Jack L. Cronenwett, MD , Louis M. Messina, MD , Andres Schanzer, MD , Vascular Study Group of New England

Introduction: The largest randomized controlled trial that compared the efficacy of carotid endarterectomy (CEA) with carotid artery stenting (CAS) showed equivalent outcomes for the composite end point of postoperative stroke, myocardial infarction (MI), or death. However, CAS had a higher risk of postoperative stroke, and CEA had a higher risk of MI. We hypothesize that there is a differential association of postoperative stroke, compared with that of postoperative MI, with reduced long-term survival after carotid revascularization when compared with neither complication.

01 junio 2013

CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY. Does Mechanical Thrombectomy in Acute Embolic Stroke Have Long-term Side Effects on Intracranial Vessels? An Angiographic Follow-up Study

Wiebke Kurre, Marta Aguilar Pérez, Diana Horvath, Elisabeth Schmid, Hansjörg Bäzner, Hans Henkes

Purpose: Mechanical thrombectomy (mTE) proved to be effective treating acute vessel occlusions with an acceptable rate of procedural complications. Potential long-term side effects of the vessel wall trauma caused by mechanical irritation of the endothelium are unknown up to now.

01 junio 2013

LANCET. Targeted use of heparin, heparinoids, or low-molecular-weight heparin to improve outcome after acute ischaemic stroke: an individual patient data meta-analysis of randomised controlled trials

Dr William N Whiteley PhD , Harold P Adams MD , Philip MW Bath FRCP , Eivind Berge MD , Per Morten Sandset MD , Martin Dennis MD , Gordon D Murray PhD , Ka-Sing Lawrence Wong MD , Peter AG Sandercock MD

Background: Many international guidelines on the prevention of venous thromboembolism recommend targeting heparin treatment at patients with stroke who have a high risk of venous thrombotic events or a low risk of haemorrhagic events. We sought to identify reliable methods to target anticoagulant treatment and so improve the chance of avoiding death or dependence after stroke.

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