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ABSTRACT


01 marzo 2016

SPRINGER. Safety, efficacy, and short-term follow-up of the use of Pipeline™ Embolization Device in small (<2.5mm) cerebral vessels for aneurysm treatment: single institution experience

Ajit S. Puri, Francesco Massari, Takumi Asai, Miklos Marosfoi, Peter Kan, Samuel Y. Hou, Mary Howk, Mary Perras, Christopher Brooks, Frederic Clarencon, Matthew J. Gounis, Ajay K. Wakhloo

Introduction: Flow diversion is being increasingly used to treat cerebral aneurysms. We present our experience using these stents to treat aneurysms distal to the circle of Willis with parent arteries smaller than 2.5 mm.

01 marzo 2016

SPRINGER. Endovascular treatment of intracranial infectious aneurysms

Asim Esenkaya, Fatih Duzgun, Celal Cinar, Halil Bozkaya, Cenk Eraslan, Erkin Ozgiray, Ismail Oran

Introduction: Intracranial infectious aneurysm (IIA) accounts for less than 5 % of all intracranial aneurysms. The aim of this study was to evaluate the role of endovascular treatment for IIA.

01 marzo 2016

SPRINGER. Ruptured basilar artery perforator aneurysms—treatment regimen and long-term follow-up in eight cases

Robert Forbrig, Bernd Eckert, Lorenz Ertl, Maximilian Patzig, Christian Brem, Christian Vollmar, Joachim Röther, Niklas Thon, Hartmut Brückmann, Gunther Fesl

Introduction: Basilar artery (BA) perforator aneurysms may lead to severe subarachnoid hemorrhage (SAH). The acute management is uncertain. The anatomic approach is challenging both for coiling and clipping, and flow diverter stenting may be dangerous due to the required antiplatelet therapy. We report on our experiences in eight patients.

01 abril 2016

SPRINGER. Testing flow diversion in animal models: a systematic review

Robert Fahed, Jean Raymond , Célina Ducroux, Jean-Christophe Gentric, Igor Salazkin, Daniela Ziegler, Guylaine Gevry, Tim E. Darsaut

Introduction: Flow diversion (FD) is increasingly used to treat intracranial aneurysms. We sought to systematically review published studies to assess the quality of reporting and summarize the results of FD in various animal models.

01 abril 2016

SPRINGER. Woven Endobridge (WEB) device for endovascular treatment of complex unruptured aneurysms—a single center experience

Stephanie Lescher , Richard du Mesnil de Rochemont, Joachim Berkefeld

Introduction: The introduction of the Woven Endobridge (WEB) device increases the feasibility of endovascular treatment of wide-neck bifurcation aneurysms with limitations given by currently available sizes and shapes of the device. Parallel to other studies, we used the new device for selected patients who were no optimal candidates for established techniques like neurosurgical clipping or endovascular coiling. We aimed to report the angiographic and clinical results of WEB implantations or combinations between WEB and coiling or intracranial stents.

11 abril 2016

SPRINGER. Duplex-assisted carotid artery stenting without administration of contrast medium for patients with chronic kidney disease or allergic reaction

Takashi Mizowaki, Atsushi Fujita, Taichiro Imahori, Atsushi Uyama, Satoshi Inoue, Masaaki Kohta, Hirotoshi Hamaguchi, Takashi Sasayama, Kohkichi Hosoda, Eiji Kohmura

Introduction: We aimed to investigate the safety and feasibility of duplex-assisted carotid artery stenting (CAS) without administration of contrast medium for the prevention of adverse reactions.

01 mayo 2016

SPRINGER. Alberta Stroke Program Early CT Score applied to CT angiography source images is a strong predictor of futile recanalization in acute ischemic stroke

Michal M. Kawiorski, Patricia Martínez-Sánchez, Andrés García-Pastor, Patricia Calleja, Blanca Fuentes, Borja E. Sanz-Cuesta, Daniel Lourido, Begoña Marín, Fernando Díaz-Otero, Agustina Vicente, Fernando Sierra-Hidalgo, Gerardo Ruiz-Ares, Exuperio Díez-Tejedor, Eduardo Fandiño, María Alonso de Leciñana

Introduction: Reliable predictors of poor clinical outcome despite successful revascularization might help select patients with acute ischemic stroke for thrombectomy. We sought to determine whether baseline Alberta Stroke Program Early CT Score (ASPECTS) applied to CT angiography source images (CTA-SI) is useful in predicting futile recanalization.

03 diciembre 2015

AMERICAN JOURNAL OF NEURORADIOLOGY. Radiographic Local Control of Spinal Metastases with Percutaneous Radiofrequency Ablation and Vertebral Augmentation

A.N. Wallace, A. Tomasian, D. Vaswani, R. Vyhmeister, R.O. Chang and J.W. Jennings

BACKGROUND AND PURPOSE: Combination radiofrequency ablation and vertebral augmentation is an emerging minimally invasive therapy for patients with metastatic spine disease who have not responded to or have contraindications to radiation therapy. The purpose of this study was to evaluate the rate of radiographic local control of spinal metastases treated with combination radiofrequency ablation and vertebral augmentation.

17 diciembre 2015

AMERICAN JOURNAL OF NEURORADIOLOGY. Cortical Cerebral Blood Flow, Oxygen Extraction Fraction, and Metabolic Rate in Patients with Middle Cerebral Artery Stenosis or Acute Stroke

Z. Liu and Y. Li

BACKGROUND AND PURPOSE: With the advances of magnetic resonance technology, the CBF, oxygen extraction fraction, and cerebral metabolic rate of oxygen can be measured in MRI. Our aim was to measure the CBF, oxygen extraction fraction, and cerebral metabolic rate of oxygen use in patients with different severities of middle cerebral artery stenosis or acute stroke by using the arterial spin-labeling and susceptibility-weighted imaging techniques.

26 noviembre 2015

AMERICAN JOURNAL OF NEURORADIOLOGY. Risk Factors for Growth of Intracranial Aneurysms: A Systematic Review and Meta-Analysis

W. Brinjikji, Y.-Q. Zhu, G. Lanzino, H.J. Cloft, M.H. Murad, Z. Wang and D.F. Kallmes

BACKGROUND AND PURPOSE: Understanding risk factors for intracranial aneurysm growth is important for patient management. We performed a meta-analysis examining risk factors for intracranial aneurysm growth in longitudinal studies and examined the association between aneurysm growth and rupture.

22 octubre 2015

AMERICAN JOURNAL OF NEURORADIOLOGY. Low-Dose Volume-of-Interest C-Arm CT Imaging of Intracranial Stents and Flow Diverters

P. Yang, A. Ahmed, S. Schafer, D. Niemann, B. Aagaard-Kienitz, K. Royalty and C. Strother

BACKGROUND AND PURPOSE: Volume-of-interest C-arm CT is a novel technique for imaging of intracranial high-contrast objects. We performed this study to evaluate the potential diagnostic value and radiation dose reduction of this technique for imaging of intracranial stents and flow diverters.

29 octubre 2015

AMERICAN JOURNAL OF NEURORADIOLOGY. WEB Treatment of Intracranial Aneurysms: Clinical and Anatomic Results in the French Observatory

L. Pierot, J. Moret, F. Turjman, D. Herbreteau, H. Raoult, X. Barreau, S. Velasco, H. Desal, A.-C. Januel, P. Courtheoux, J.-Y. Gauvrit, C. Cognard, A. Molyneux, J. Byrne and L. Spelle

BACKGROUND AND PURPOSE: Flow disruption with the WEB device is a new technique for the endovascular treatment of wide-neck bifurcation aneurysms. To obtain precise data regarding the safety and efficacy of this treatment with high-quality methodology, the prospective French Observatory study was conducted. Analysis of these data is presented, including 1-year follow-up.

10 diciembre 2015

AMERICAN JOURNAL OF NEURORADIOLOGY. The Added Value of Volume-of-Interest C-Arm CT Imaging during Endovascular Treatment of Intracranial Aneurysms

G. Chintalapani, P. Chinnadurai, A. Maier, Y. Xia, S. Bauer, H. Shaltoni, H. Morsi and M.E. Mawad

BACKGROUND AND PURPOSE: Successful endovascular treatment of intracranial aneurysms requires understanding the exact relationship of implanted devices to the aneurysm, parent artery, and other branch vessels during the treatment. Intraprocedural C-arm CT imaging has been shown to provide such information. However, its repeated use is limited due to increasing radiation exposure to the patient. The goal of this study was to evaluate a new volume-of-interest C-arm CT imaging technique, which would provide device-specific information through multiple 3D acquisitions of only the region of interest, thus reducing cumulative radiation exposure to the patient.

12 noviembre 2015

AMERICAN JOURNAL OF NEURORADIOLOGY. Mechanical Thrombectomy for Isolated M2 Occlusions: A Post Hoc Analysis of the STAR, SWIFT, and SWIFT PRIME Studies

J.M. Coutinho, D.S. Liebeskind, L.-A. Slater, R.G. Nogueira, B.W. Baxter, E.I. Levy, A.H. Siddiqui, M. Goyal, O.O. Zaidat, A. Davalos, A. Bonafé, R. Jahan, J. Gralla, J.L. Saver and V.M. Pereira

BACKGROUND AND PURPOSE: Mechanical thrombectomy is beneficial for patients with acute ischemic stroke and a proximal anterior occlusion, but it is unclear if these results can be extrapolated to patients with an M2 occlusion. The purpose of this study was to examine the technical aspects, safety, and outcomes of mechanical thrombectomy with a stent retriever in patients with an isolated M2 occlusion who were included in 3 large multicenter prospective studies.

05 noviembre 2015

AMERICAN JOURNAL OF NEURORADIOLOGY. Mechanical Thrombectomy of Distal Occlusions in the Anterior Cerebral Artery: Recanalization Rates, Periprocedural Complications, and Clinical Outcome

J. Pfaff, C. Herweh, M. Pham, S. Schieber, P.A. Ringleb, M. Bendszus and M. Möhlenbruch

BACKGROUND AND PURPOSE: Patients with acute ischemic stroke in the anterior circulation are at risk for either primary or, following mechanical thrombectomy, secondary occlusion of the anterior cerebral artery. Because previous studies had only a limited informative value, we report our data concerning the frequency and location of distal anterior cerebral artery occlusions, recanalization rates, periprocedural complications, and clinical outcome.

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