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ABSTRACT


12 septiembre 2013

AMERICAN JOURNAL OF NEURORADIOLOGY. Frequency of Discordance between Facet Joint Activity on Technetium Tc99m Methylene Diphosphonate SPECT/CT and Selection for Percutaneous Treatment at a Large Multispecialty Institution

V.T. Lehman, R.C. Murphy, T.J. Kaufmann, F.E. Diehn, N.S. Murthy, J.T. Wald, K.R. Thielen, K.K. Amrami, J.M. Morris and T.P. Maus

Background and Purpose: The clinical impact of facet joint bone scan activity is not fully understood. The hypothesis of this study is that facet joints targeted for percutaneous treatment in clinical practice differ from those with reported activity on technetium Tc99m methylene diphosphonate SPECT/CT.

22 agosto 2013

AMERICAN JOURNAL OF NEURORADIOLOGY. Long Insular Artery Infarction: Characteristics of a Previously Unrecognized Entity

A. Tamura, T. Kasai, K. Akazawa, Y. Nagakane, T. Yoshida, Y. Fujiwara, N. Kuriyama, K. Yamada, T. Mizuno and M. Nakagawa

Background and Purpose: The infarctions arising in the long insular arteries of the M2 segment have been poorly described in the past. The purpose of this study was to investigate the incidence, clinical characteristics, and pathogenesis of long insular artery infarcts.

05 diciembre 2013

AMERICAN JOURNAL OF NEURORADIOLOGY. Pretreatment Advanced Imaging in Patients with Stroke Treated with IV Thrombolysis: Evaluation of a Multihospital Data Base

J.S. McDonald, J. Fan, D.F. Kallmes and H.J. Cloft

Background and Purpose: CT angiography, CT perfusion, and MR imaging have all been advocated as potentially useful in treatment planning for patients with acute ischemic stroke. We evaluated a large multihospital data base to determine how the use of advanced imaging is evolving in patients treated with intravenous thrombolysis.

01 noviembre 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. Treatment of Acute Vertebrobasilar Occlusion Using Thrombectomy with Stent Retrievers: Initial Experience with 18 Patients

M. Espinosa de Rueda, G. Parrilla, J. Zamarro, B. García-Villalba, F. Hernández and A. Moreno

Background and Purpose: Acute vertebrobasilar occlusion is an ominous disease with few proved effective treatments. Experience with stent retrievers is scarce and limited to combined therapies (stent retrievers associated with previous intravenous fibrinolysis, intra-arterial thrombolysis, or other mechanical devices). We present our experience with 18 patients treated with direct thrombectomy by using stent retrievers.

20 diciembre 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. Recanalization with Stent-Retriever Devices in Patients with Wake-Up Stroke

S. Stampfl, P.A. Ringleb, S. Haehnel, A. Rocco, C. Herweh, C. Hametner, M. Pham, M. Moehlenbruch, M. Bendszus and S. Rohde

Background and Purpose: Stent-retriever devices play an increasing role in the interventional treatment of acute stroke patients, because fast recanalization can be achieved. The purpose of this study was to evaluate the feasibility of stent-retriever recanalization in patients with wake-up stroke in the anterior circulation.

25 octubre 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. Interobserver Variability in Retreatment Decisions of Recurrent and Residual Aneurysms

J.S. McDonald, R.E. Carter, K.F. Layton, J. Mocco, J.B. Madigan, R.G. Tawk, R.A. Hanel, S.S. Roy, H.J. Cloft, A.M. Klunder, S.H. Suh and D.F. Kallmes

Background and Purpose: The degree of variation in retreatment decisions for residual or recurrent aneurysms among endovascular therapists remains poorly defined. We performed a multireader study to determine what reader and patient variables contribute to this variation.

01 noviembre 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. Age-Related Trends in the Treatment and Outcomes of Ruptured Cerebral Aneurysms: A Study of the Nationwide Inpatient Sample 2001–2009

W. Brinjikji, G. Lanzino, A.A. Rabinstein, D.F. Kallmes and H.J. Cloft

Background and Purpose: Patient age substantially influences treatment decisions for ruptured cerebral aneurysms. It would be useful to understand national age-related trends of treatment techniques and outcomes in patients treated for ruptured cerebral aneurysm in the United States.

01 mayo 2013

THE LANCET NEUROLOGY. Safety and efficacy of uric acid in patients with acute stroke (URICO-ICTUS): a randomised, double-blind phase 2b/3 trial

Dr Ángel Chamorro MD a e , Sergio Amaro MD a e, Mar Castellanos MD f, Tomás Segura MD g, Juan Arenillas MD h, Joan Martí-Fábregas MD i, Jaime Gállego MD j, Jurek Krupinski MD k, Meritxell Gomis MD l, David Cánovas MD m, Xavier Carné MD b e, Ramón Deulofeu PhD c, Luis San Román MD d, Laura Oleaga MD d e, Ferran Torres MD e n, Anna M Planas PhD e o, for the URICO-ICTUS Investigators†

Introduction: Uric acid is an antioxidant with neuroprotective effects in experimental models of stroke. We assessed whether uric acid therapy would improve functional outcomes at 90 days in patients with acute ischaemic stroke.

03 abril 2014

STROKE. Clinical Sciences. Evaluation of Carotid Angioplasty and Stenting for Radiation-Induced Carotid Stenosis

Simon C.H. Yu, MD; Winnie X.Y. Zou, PhD; Yannie O.Y. Soo, MD; Lily Wang, MD; Joyce Wai Yi Hui, FRCR; Anne Y.Y. Chan, MD; Kwok Tung Lee, MSc; Vincent H.L. Ip, MD; Florence S.Y. Fan, MD; Annie L.C. Chan, MSc; Lawrence K.S. Wong, MD; Thomas W. Leung, MD

Background and Purpose: We aimed to evaluate the procedural safety, clinical, and angiographic outcome of carotid angioplasty and stenting for high-grade (≥70%) radiation-induced carotid stenosis (RIS) using atherosclerotic stenosis (AS) as a control.

03 abril 2014

STROKE. Clinical Sciences. Comparison of Magnetic Resonance Imaging Mismatch Criteria to Select Patients for Endovascular Stroke Therapy

Nishant K. Mishra, MBBS, PhD, FESO; Gregory W. Albers, MD; Søren Christensen, PhD; Michael Marks, MD; Scott Hamilton, PhD; Matus Straka, PhD; John T.P. Liggins, MSc; Stephanie Kemp, BS; Michael Mlynash, MD, MS; Roland Bammer, PhD; Maarten G. Lansberg, MD, PhD; for Diffusion and Perfusion Imaging Evaluation for Understanding Stroke Evolution 2 Investigators

Background and Purpose: The Diffusion and Perfusion Imaging Evaluation for Understanding Stroke Evolution 2 (DEFUSE 2) study has shown that clinical response to endovascular reperfusion differs between patients with and without perfusion–diffusion (perfusion-weighted imaging–diffusion-weighted imaging, PWI–DWI) mismatch: patients with mismatch have a favorable clinical response to reperfusion, whereas patients without mismatch do not. This study examined whether alternative mismatch criteria can also differentiate patients according to their response to reperfusion.

20 marzo 2014

STROKE. Clinical Sciences. Difference in Aneurysm Characteristics Between Ruptured and Unruptured Aneurysms in Patients With Multiple Intracranial Aneurysms

Daan Backes, MD; Mervyn D.I. Vergouwen, MD, PhD; Birgitta K. Velthuis, MD, PhD; Irene C. van der Schaaf, MD, PhD; A. Stijntje E. Bor, MD; Ale Algra, MD, PhD; Gabriel J.E. Rinkel, MD, FRCPE

Background and Purpose: Prediction of the risk of rupture of unruptured intracranial aneurysms is mainly based on aneurysm size and location. Previous studies identified features of aneurysm shape and flow angles as additional risk factors for aneurysm rupture, but these studies were at risk for confounding by patient-specific risk factors such as hypertension and age. In this study, we avoided this risk by comparing characteristics of ruptured and unruptured aneurysms in patients with both aneurysmal subarachnoid hemorrhage and multiple intracranial aneurysms.

13 marzo 2014

STROKE. Basic Sciences. Extravascular Optical Coherence Tomography. Evaluation of Carotid Atherosclerosis and Pravastatin Therapy

Robert T. Wicks, MD*; Yong Huang, PhD*; Kang Zhang, PhD; Mingtao Zhao, PhD; Betty M. Tyler, BA; Ian Suk, CMI; Lee Hwang, MD; Jacob Ruzevick, BS; George Jallo, MD; Henry Brem, MD; Gustavo Pradilla, MD; Jin U. Kang, PhD

Background and Purpose: Extravascular optical coherence tomography (OCT), as a noninvasive imaging methodology with micrometer resolution, was evaluated in a murine model of carotid atherosclerosis by way of assessing the efficacy of pravastatin therapy.

04 marzo 2014

STROKE. Clinical Sciences. Outcomes of a Contemporary Cohort of 536 Consecutive Patients With Acute Ischemic Stroke Treated With Endovascular Therapy

Sònia Abilleira, MD, PhD; Pere Cardona, MD; Marc Ribó, MD, PhD; Mònica Millán, MD, PhD; Víctor Obach, MD, PhD; Jaume Roquer, MD, PhD; David Cánovas, MD; Joan Martí-Fàbregas, MD, PhD; Francisco Rubio, MD, PhD; José Álvarez-Sabín, MD, PhD; Antoni Dávalos, MD, PhD; Ángel Chamorro, MD, PhD; Maria Angeles de Miquel, MD, PhD; Alejandro Tomasello, MD, PhD; Carlos Castaño, MD, PhD; Juan M. Macho, MD, PhD; Aida Ribera, BSc, PhD; Miquel Gallofré, MD, PhD; on behalf of the Catalan Stroke Code and Reperfusion Consortium

Background and Purpose: We sought to assess outcomes after endovascular treatment/therapy of acute ischemic stroke, overall and by subgroups, and looked for predictors of outcome.

25 febrero 2014

STROKE. Clinical Sciences. Effect of Collateral Blood Flow on Patients Undergoing Endovascular Therapy for Acute Ischemic Stroke

Michael P. Marks, MD; Maarten G. Lansberg, MD; Michael Mlynash, MD; Jean-Marc Olivot, MD; Matus Straka, PhD; Stephanie Kemp, BS; Ryan McTaggart, MD; Manabu Inoue, MD; Greg Zaharchuk, MD, PhD; Roland Bammer, PhD; Gregory W. Albers, MD; for Diffusion and Perfusion Imaging Evaluation for Understanding Stroke Evolution 2 (DEFUSE 2) Investigators

Background and Purpose: Our aim was to determine the relationships between angiographic collaterals and diffusion/perfusion findings, subsequent infarct growth, and clinical outcome in patients undergoing endovascular therapy for ischemic stroke.

20 febrero 2014

STROKE. Clinical Sciences. Early Diffusion-Weighted Imaging Reversal After Endovascular Reperfusion Is Typically Transient in Patients Imaged 3 to 6 Hours After Onset

Manabu Inoue, MD, PhD; Michael Mlynash, MD, MS; Soren Christensen, PhD; Hayley M. Wheeler, BS; Matus Straka, PhD; Aaryani Tipirneni, MS; Stephanie M. Kemp, BS; Greg Zaharchuk, MD, PhD; Jean-Marc Olivot, MD, PhD; Roland Bammer, PhD; Maarten G. Lansberg, MD, PhD; Gregory W. Albers, MD; for the DEFUSE 2 Investigators

Background and Purpose: The aim of this study was to assess the frequency and extent of early diffusion-weighted imaging (DWI) lesion reversal after endovascular therapy and to determine whether early reversal is sustained or transient.

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