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ABSTRACT


24 septiembre 2015

STROKE. Clinical Sciences. Utility of Screening for Cerebral Vasospasm Using Digital Subtraction Angiography

Eric J. Arias, MD; Sravya Vajapey, BS; Matthew R. Reynolds, MD, PhD; Michael R. Chicoine, MD; Keith M. Rich, MD; Ralph G. Dacey Jr, MD; Ian G. Dorward, MD; Colin P. Derdeyn, MD; Christopher J. Moran, MD; DeWitte T. Cross III, MD; Gregory J. Zipfel, MD; Rajat Dhar, MD

Background and Purpose: Cerebral arterial vasospasm (CVS) is a common complication of aneurysmal subarachnoid hemorrhage strongly associated with neurological deterioration and delayed cerebral ischemia (DCI). The utility of screening for CVS as a surrogate for early detection of DCI, especially in patients without clinical signs of DCI, remains uncertain.

01 diciembre 2015

SPRINGER. CT angiography versus 3D rotational angiography in patients with subarachnoid hemorrhage

R. S. Bechan, S. B. van Rooij, M. E. Sprengers, J. P. Peluso, M. Sluzewski, C. B. Majoie, W. J. van Rooij

Introduction: CT angiography (CTA) is increasingly used as primary diagnostic tool to replace digital subtraction angiography (DSA) in patients with subarachnoid hemorrhage (SAH). However, 3D rotational angiography (3DRA) has substituted DSA as a reference standard. In this prospective observational study, we compare CTA with 3DRA of all cerebral vessels in a large cohort of patients with SAH.

01 octubre 2015

AMERICAN JOURNAL OF NEURORADIOLOGY. Diagnostic Accuracy of PET, SPECT, and Arterial Spin-Labeling in Differentiating Tumor Recurrence from Necrosis in Cerebral Metastasis after Stereotactic Radiosurgery

G. Lai, A. Mahadevan, D. Hackney, P.C. Warnke, F. Nigim, E. Kasper, E.T. Wong, B.S. Carter and C.C. Chen

BACKGROUND AND PURPOSE: Radiographic assessment of cerebral metastasis after stereotactic radiosurgery remains a major challenge in neuro-oncology. It is often difficult to distinguish tumor progression from radiation necrosis in this setting using conventional MR imaging. The objective of this study was to compare the diagnostic sensitivity and specificity of different functional imaging modalities for detecting tumor recurrence after stereotactic radiosurgery.

27 agosto 2015

AMERICAN JOURNAL OF NEURORADIOLOGY. Determinants of Intracranial Hemorrhage Occurrence and Outcome after Neurothrombectomy Therapy: Insights from the Solitaire FR With Intention For Thrombectomy Randomized Trial

R. Raychev, R. Jahan, D. Liebeskind, W. Clark, R.G. Nogueira and J. Savera,c The SWIFT Trial Investigators

BACKGROUND AND PURPOSE: Intracranial hemorrhage is the most dreaded complication of neurothrombectomy therapy for acute ischemic stroke. The determinants of intracranial hemorrhage and its impact on clinical course remain incompletely delineated. The purpose of this study is to further investigate the clinical and procedural factors leading to intracranial hemorrhage and to define the clinical impact of different hemorrhagic subtypes.

06 agosto 2015

AMERICAN JOURNAL OF NEURORADIOLOGY. Risk Factors for Hemorrhagic Complications following Pipeline Embolization Device Treatment of Intracranial Aneurysms: Results from the International Retrospective Study of the Pipeline Embolization Device

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

BACKGROUND AND PURPOSE: Spontaneous intraparenchymal hemorrhage is a dreaded complication of unknown etiology following flow-diversion treatment. Using the International Retrospective Study of the Pipeline Embolization Device registry, we studied demographic, aneurysm, and procedural characteristics associated with intraparenchymal hemorrhage following Pipeline Embolization Device treatment.

20 agosto 2015

AMERICAN JOURNAL OF NEURORADIOLOGY. One-Year Angiographic Follow-Up after WEB-SL Endovascular Treatment of Wide-Neck Bifurcation Intracranial Aneurysms

R. Sivan-Hoffmann, B. Gory, R. Riva, P.-E. Labeyrie, F. Signorelli, I. Eldesouky, U. Gonike-Sadeh, X. Armoiry and F. Turjman

BACKGROUND AND PURPOSE: Endovascular coiling of wide-neck intracranial aneurysms is associated with low rates of initial angiographic occlusion and high rates of recurrence. The WEB intrasaccular device has been developed specifically for this indication. To date, there has been no report of the long-term follow-up of a series of patients with aneurysms treated with this type of device, to our knowledge. Our aim was to evaluate a 1-year follow-up of angiographic results in a prospective single-center series of patients treated with the WEB-Single-Layer (SL) device.

13 agosto 2015

AMERICAN JOURNAL OF NEURORADIOLOGY. Flow Diversion versus Standard Endovascular Techniques for the Treatment of Unruptured Carotid-Ophthalmic Aneurysms

F. Di Maria, S. Pistocchi, F. Clarençon, B. Bartolini, R. Blanc, A. Biondi, H. Redjem, J. Chiras, N. Sourour and M. Piotin

BACKGROUND AND PURPOSE: Over the past few years, flow diversion has been increasingly adopted for the treatment of intracranial aneurysms, especially in the paraclinoid and paraophthalmic carotid segment. We compared clinical and angiographic outcomes and complication rates in 2 groups of patients with unruptured carotid-ophthalmic aneurysms treated for 7 years by either standard coil-based techniques or flow diversion.

27 agosto 2015

AMERICAN JOURNAL OF NEURORADIOLOGY. Susceptibility Vessel Sign on MRI Predicts Favorable Clinical Outcome in Patients with Anterior Circulation Acute Stroke Treated with Mechanical Thrombectomy

R. Bourcier, S. Volpi, B. Guyomarch, B. Daumas-Duport, A. Lintia-Gaultier, C. Papagiannaki, J.M. Serfaty and H. Desal

BACKGROUND AND PURPOSE: The susceptibility vessel sign on MR imaging has been reported to indicate acute occlusion from erythrocyte-rich thrombus. The purpose of this study was to evaluate the influence of the susceptibility vessel sign seen on MR imaging before treatment on the clinical outcome after mechanical thrombectomy for anterior circulation acute stroke.

20 agosto 2015

AMERICAN JOURNAL OF NEURORADIOLOGY. Emergency Stenting of the Extracranial Internal Carotid Artery in Combination with Anterior Circulation Thrombectomy in Acute Ischemic Stroke: A Retrospective Multicenter Study

D. Behme, A. Mpotsaris, P. Zeyen, M.N. Psychogios, A. Kowoll, C.J. Maurer, F. Joachimski, J. Liman, K. Wasser, C. Kabbasch, A. Berlis, M. Knauth, T. Liebig and W. Weber

BACKGROUND AND PURPOSE: Several small case series reported a favorable clinical outcome for emergency stent placement in the extracranial internal carotid artery combined with mechanical thrombectomy in acute stroke. The rate of postinterventional symptomatic intracranial hemorrhages was reported to be as high as 20%. Therefore, we investigated the safety and efficacy of this technique in a large multicentric cohort.

06 agosto 2015

AMERICAN JOURNAL OF NEURORADIOLOGY. Diagnostic Accuracy of 4 Commercially Available Semiautomatic Packages for Carotid Artery Stenosis Measurement on CTA

J. Borst, H.A. Marquering, M. Kappelhof, T. Zadi, A.C. van Dijk, P.J. Nederkoorn, R. van den Berg, A. van der Lugt and C.B.L.M. Majoie

BACKGROUND AND PURPOSE: Semiautomatic measurement of ICA stenosis potentially increases observer reproducibility. In this study, we assessed the diagnostic accuracy and interobserver reproducibility of a commercially available semiautomatic ICA stenosis measurement on CTA and estimated the agreement among different software packages.

13 agosto 2015

AMERICAN JOURNAL OF NEURORADIOLOGY. LEO Baby Stent Use following Balloon-Assisted Coiling: Single- and Dual-Stent Technique—Immediate and Midterm Results of 29 Consecutive Patients

P. Machi, V. Costalat, K. Lobotesis, C. Ruiz, Y.B. Cheikh, O. Eker, G. Gascou, F. Danière, C. Riquelme and A. Bonafé

BACKGROUND AND PURPOSE: We report our preliminary results in terms of safety and efficacy in using the low-profile LEO Baby stent for the treatment of large-neck and complex intracranial aneurysms with balloon-then-stent-assisted coiling and single- or dual-stent-assisted coiling.

06 agosto 2015

AMERICAN JOURNAL OF NEURORADIOLOGY. Platelet Testing is Associated with Worse Clinical Outcomes for Patients Treated with the Pipeline Embolization Device

W. Brinjikji, G. Lanzino, H.J. Cloft, A.H. Siddiqui, R.A. Hanel and D.F. Kallmes

BACKGROUND AND PURPOSE: The necessity for platelet-inhibition testing before aneurysm treatment in patients premedicated with antiplatelet agents is controversial. Using the International Retrospective Study of Pipeline Embolization Device registry, we studied complication rates in groups of patients who underwent platelet testing and those who did not undergo platelet testing to determine if these test results were associated with improved outcomes.

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