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Cervical Carotid Plaque MRI Clin. Neuroradiol. (IF 3.183) Pub Date : 2021-01-04 John C. Benson, Heidi Cheek, Marie C. Aubry, Giuseppe Lanzino, John Huston III, Alejandro Rabinstein, Waleed Brinjikji
Magnetic resonance (MR) imaging is considered the gold standard for non-invasive evaluation of carotid artery plaque morphology and composition. A number of studies have demonstrated the clinical utility of MR plaque imaging in the risk stratification of carotid atherosclerotic disease, determination of stroke etiology, and identification of surgical and endovascular candidates for carotid revascularization
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Radial vs. Femoral Artery Access for Procedural Success in Diagnostic Cerebral Angiography Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-12-29 Kartik Bhatia, William Guest, Hubert Lee, Jesse Klostranec, Hans Kortman, Emanuele Orru, Ayman Qureshi, Alexander Kostynskyy, Ronit Agid, Richard Farb, Ivan Radovanovic, Patrick Nicholson, Timo Krings, Vitor Mendes Pereira
Background and Purpose Radial artery access has become the standard of care in percutaneous coronary procedures due to demonstrated patient safety and comfort benefits; however, uptake of radial access for diagnostic cerebral angiography has been limited by practitioner concerns over the ability to achieve procedural success. We aimed to provide randomized clinical trial evidence for the non-inferiority
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Quantitative Assessment of Hyperdense Sign Measured by Hounsfield Units is Associated with Unsuccessful Mechanical Thrombectomy Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-12-23 Fazeel M. Siddiqui, Cynthia B. Zevallos, Sudeepta Dandapat, Kiddy L. Ume, Matthew Weber, Andres Dajles, Darko Quispe-Orozco, Mudassir Farooqui, Santiago Ortega-Gutierrez
Purpose Despite advancement in mechanical thrombectomy (MT) techniques, 10–30% of MT for large vessel occlusions (LVO) are unsuccessful. Current prediction models fail to address the association between patient-specific factors and reperfusion. We aimed to evaluate objective, easily reproducible, admission clinical and radiological biomarkers that predict unsuccessful MT. Methods We analyzed consecutive
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Sex Differences in Outcome After Thrombectomy for Acute Ischemic Stroke are Explained by Confounding Factors Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-12-21 Milani Deb-Chatterji, Eckhard Schlemm, Fabian Flottmann, Lukas Meyer, Anna Alegiani, Caspar Brekenfeld, Jens Fiehler, Christian Gerloff, Götz Thomalla
Purpose The aim of this study was to analyze sex differences in outcome after thrombectomy for acute ischemic stroke in clinical practice in a large prospective multicenter registry. Methods Data of consecutive stroke patients treated with thrombectomy (June 2015–April 2018) derived from an industry-independent registry (German Stroke Registry–Endovascular Treatment) were prospectively analyzed. Multivariable
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Radiation Dose and Fluoroscopy Time of Endovascular Treatment in Patients with Intracranial Lateral Dural Arteriovenous Fistulae Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-12-11 Robert Forbrig, Robert Stahl, Lucas L. Geyer, Yigit Ozpeynirci, Thomas Liebig, Christoph G. Trumm
Purpose Intracranial lateral dural arteriovenous fistula (LDAVF) represents a specific subtype of cerebrovascular fistulae, harboring a potentially life-threatening risk of brain hemorrhage. Fluoroscopically guided endovascular embolization is the therapeutic gold standard. We provide detailed dosimetry data to suggest novel diagnostic reference levels (DRL). Methods Retrospective single-center study
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Mechanical Thrombectomy for Acute Intracranial Carotid Occlusion with Patent Intracranial Arteries Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-12-10 Fabrizio Sallustio, Valentina Saia, Federico Marrama, Giovanni Pracucci, Roberto Gandini, Giacomo Koch, Alfredo Paolo Mascolo, Federica D’Agostino, Alessandro Rocco, Renato Argiro’, Marco Nezzo, Daniele Morosetti, Andrea Wlderk, Valerio Da Ros, Marina Diomedi, Leonardo Renieri, Patrizia Nencini, Stefano Vallone, Andrea Zini, Guido Bigliardi, Antonio Caragliano, Isabella Francalanza, Sandra Bracco,
Purpose Intracranial carotid artery occlusion represents an underinvestigated cause of acute ischemic stroke as well as an indication for mechanical thrombectomy. We investigated baseline and procedural characteristics, outcomes and predictors of outcome in patients with acute ischemic stroke secondary to intracranial carotid artery occlusion. Methods A retrospective analysis of the Italian Registry
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Safety and Efficacy of the Neuroform Atlas Stent for Treatment of Intracranial Aneurysms Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-11-30 Jeremy Lynch, Sara Sciacca, Juveria Siddiqui, Lakshmi Kanagarajah, Shahram Derakhshani
Objective The Neuroform Atlas (Stryker Neurovascular, Fremont, CA, USA) is a low-profile laser cut self-expanding nitinol stent designed to provide coil support and wall apposition during aneurysm embolisation. In this study, we performed a meta-analysis of outcomes after treatment with the Neuroform Atlas stent for the purpose of coil embolisation. Methods The primary objectives of this meta-analysis
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Embryological Lateral Striate Artery Variants Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-11-27 Takahiro Ota, Masaki Komiyama
Purpose The anterior perforating arteries are a group of arteries that enter the brain through the anterior perforated substance (APS). Because the lenticulostriate artery, the recurrent artery of Heubner (RAH) and the perforators from A1 of anterior cerebral artery (ACA) penetrate the APS and supply the basal ganglia, these arteries can be considered as having a common embryological origin. Results
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T2-Pseudonormalization and Microstructural Characterization in Advanced Stages of Late-infantile Metachromatic Leukodystrophy Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-11-23 Pascal Martin, Gisela E. Hagberg, Thomas Schultz, Klaus Harzer, Uwe Klose, Benjamin Bender, Thomas Nägele, Klaus Scheffler, Ingeborg Krägeloh-Mann, Samuel Groeschel
Purpose T2-weighted signal hyperintensities in white matter (WM) are a diagnostic finding in brain magnetic resonance imaging (MRI) of patients with metachromatic leukodystrophy (MLD). In our systematic investigation of the evolution of T2-hyperintensities in patients with the late-infantile form, we describe and characterize T2-pseudonormalization in the advanced stage of the natural disease course
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Automated Perfusion Calculations vs. Visual Scoring of Collaterals and CBV-ASPECTS Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-11-20 Marios-Nikos Psychogios, Peter B. Sporns, Johanna Ospel, Aristeidis H. Katsanos, Reza Kabiri, Fabian A. Flottmann, Bijoy K. Menon, Mackenzie Horn, David S. Liebeskind, Tristan Honda, Marc Ribo, Manuel Requena Ruiz, Christoph Kabbasch, Thorsten Lichtenstein, Christoph J. Maurer, Ansgar Berlis, Victoria Hellstern, Hans Henkes, Markus A. Möhlenbruch, Fatih Seker, Marielle S. Ernst, Jan Liman, Georgios
Purpose Use of automated perfusion software has gained importance for imaging of stroke patients for mechanical thrombectomy (MT). We aim to compare four perfusion software packages: 1) with respect to their association with 3‑month functional outcome after successful reperfusion with MT in comparison to visual Cerebral Blood Volume - Alberta Stroke Program Early CT Score (CBV-ASPECTS) and collateral
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Initial Experience with Surpass Evolve Flow Diverter in the Treatment of Intracranial Aneurysms Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-11-20 V. Maus, W. Weber, A. Berlis, C. Maurer, S. Fischer
Background and Purpose The principle of flow diversion has revolutionized the treatment of brain aneurysms. In this study, we report our experience of the new Surpass Evolve (SE) flow diverter in the treatment of intracranial aneurysms. Material and Methods Patients were treated with the SE as first-line therapy between May 2019 and June 2020 at 2 experienced institutions. Inclusion criteria were wide-necked
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Bilateral Transradial Approach for Coil Embolization of Basilar Artery Aneurysms Associated with an Unfavorable Vertebral Artery Anatomy Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-11-17 Yoshiki Hanaoka, Jun-ichi Koyama, Yu Fujii, Toshihiro Ogiwara, Kiyoshi Ito, Tetsuyoshi Horiuchi
Purpose An unfavorable vertebral artery (VA) anatomy occasionally inhibits a successful VA cannulation due to flow stagnation after catheterization. To preserve antegrade VA flow, we developed bilateral transradial catheter systems, referred to as the role-sharing technique, for coil embolization of basilar artery (BA) aneurysms associated with an unfavorable VA anatomy. This study aimed to evaluate
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Approaching the Boundaries of Endovascular Treatment in Acute Ischemic Stroke Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-10-27 Hanna Styczen, Sebastian Fischer, Leonard LL Yeo, Benjamin Yong-Qiang Tan, Christoph J. Maurer, Ansgar Berlis, Nuran Abdullayev, Christoph Kabbasch, Andreas Kastrup, Panagiotis Papanagiotou, Christin Clajus, Donald Lobsien, Eike Piechowiak, Johannes Kaesmacher, Volker Maus
Purpose Little is known about catheter-based endovascular treatment of vertebrobasilar artery branch occlusion (VEBABO) in acute ischemic stroke (AIS). Nonetheless, the experience of mechanical thrombectomy (MT) in distal small sized arteries of the anterior circulation seems promising in AIS. In this multicenter study, we report the feasibility, efficacy and safety of MT in VEBABO. Methods Retrospective
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Epilepsy Associated with Temporal Pole Encephaloceles Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-10-15 Javier Martinez-Poles, Rafael Toledano, Adolfo Jiménez-Huete, Irene García-Morales, Ángel Aledo-Serrano, Carla Anciones, Pablo Campo, Juan Álvarez-Linera, Antonio Gil-Nagel
Purpose We hypothesized that epilepsy associated with temporal pole encephaloceles (ETPE) could be the consequence and an unrecognized manifestation of idiopathic intracranial hypertension (IIH). To test this hypothesis in patients with ETPEs we evaluated: 1) the frequency of two radiological signs of IIH and 2) whether these patients develop over time clinical manifestations suggestive of elevated
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Relaxation-Enhanced Angiography Without Contrast and Triggering (REACT) for Fast Imaging of Extracranial Arteries in Acute Ischemic Stroke at 3 T Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-10-07 Lenhard Pennig, Christoph Kabbasch, Ulrike Cornelia Isabel Hoyer, Simon Lennartz, David Zopfs, Lukas Goertz, Kai Roman Laukamp, Anton Wagner, Jan-Peter Grunz, Jonas Doerner, Thorsten Persigehl, Kilian Weiss, Jan Borggrefe
Purpose To evaluate a novel flow-independent 3D isotropic REACT sequence compared with CE-MRA for the imaging of extracranial arteries in acute ischemic stroke (AIS). Methods This was a retrospective study of 35 patients who underwent a stroke protocol at 3 T including REACT (fixed scan time: 2:46 min) and CE-MRA of the extracranial arteries. Three radiologists evaluated scans regarding vessel delineation
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Alteration of Resting-state Functional Connectivity in the Sensorimotor Network in Patients with Thalamic Infarction Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-10-02 Miao He, Jiarui Song, Tianyou Luo, Kangcheng Wang, Yang Li, Fajin Lv, Li Chen
Purpose To explore changes in functional connectivity (FC) within the sensorimotor network (SMN) and the relationship between the SMN and bilateral thalamus in patients with thalamic infarction (TI) using resting state functional magnetic resonance imaging (rs-fMRI). Also determined was whether those measures are useful for monitoring the functional recovery of somatosensory deficits. Methods The study
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Thrombus Histology of Basilar Artery Occlusions Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-10-02 M. Berndt, H. Poppert, K. Steiger, J. Pelisek, P. Oberdieck, C. Maegerlein, C. Zimmer, S. Wunderlich, B. Friedrich, T. Boeckh-Behrens, B. Ikenberg
Background For patients with acute vessel occlusions of the anterior circulation histopathology of retrieved cerebral thrombi has been reported to be associated to stroke etiology. Due to the relatively small incidence of posterior circulation stroke, exclusive histopathologic analyses are missing for this subgroup. The aim of the study was to investigate thrombus histology for patients with basilar
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Imaging Neurovascular Uncoupling in Acute Migraine with Aura with Susceptibility Weighted Imaging Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-10-01 Frauke Kellner-Weldon, Marina Jossen, Philipe S. Breiding, Lorenz Grunder, Christoph Schankin, Adrian Scutelnic, Urs Fischer, Raphaela Muri, Manuela Pastore-Wapp, Roland Wiest, Marwan El-Koussy
Purpose Migraine with aura (MwA) in the emergency setting is common and sometimes difficult to distinguish from mimicking conditions. Susceptibility weighted imaging (SWI), a magnet resonance (MR) technique is sensitive to deoxygenated hemoglobin in cerebral veins and depicts these according to their level of oxygenation. Our study aimed at evaluating the frequency of regions of prominent focal veins
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Introduction of CTA-index as Simplified Measuring Method for Thrombus Perviousness Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-09-29 Maria Berndt, Fabian Mück, Christian Maegerlein, Silke Wunderlich, Claus Zimmer, Stefan Wirth, Sebastian Mönch, Johannes Kaesmacher, Benjamin Friedrich, Tobias Boeckh-Behrens
Purpose Thrombus features on admission CT are useful imaging markers for clot characterization, stroke pathogenesis and outcome prediction. In this context, thrombus perviousness is a promising parameter, but reliable assessment in daily clinical practice is demanding. The aim of the present study was to evaluate an easy to assess measuring method for thrombus permeability at the time of admission
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Utility of Time-Variant Multiphase CTA Color Maps in Outcome Prediction for Acute Ischemic Stroke Due to Anterior Circulation Large Vessel Occlusion. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-09-25 Johanna M Ospel,Petra Cimflova,Ondrej Volny,Wu Qiu,Moiz Hafeez,Arnuv Mayank,Mohamed Najm,Kevin Chung,Nima Kashani,Mohammed A Almekhlafi,Bijoy K Menon,Mayank Goyal
Background Multiphase CTA (mCTA) is an established tool for endovascular treatment decision-making and outcome prediction in acute ischemic stroke, but its interpretation requires some degree of experience. We aimed to determine whether mCTA-based prediction of clinical outcome and final infarct volume can be improved by assessing collateral status on time-variant mCTA color maps rather than using
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Hemodynamic Data Assimilation in a Subject-specific Circle of Willis Geometry. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-09-24 Franziska Gaidzik,Sahani Pathiraja,Sylvia Saalfeld,Daniel Stucht,Oliver Speck,Dominique Thévenin,Gábor Janiga
Purpose The anatomy of the circle of Willis (CoW), the brain’s main arterial blood supply system, strongly differs between individuals, resulting in highly variable flow fields and intracranial vascularization patterns. To predict subject-specific hemodynamics with high certainty, we propose a data assimilation (DA) approach that merges fully 4D phase-contrast magnetic resonance imaging (PC-MRI) data
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Super-selective ASL and 4D ASL-based MR Angiography in a Patient with Moyamoya Disease : Case Report. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-09-25 Nico Sollmann,Hans Liebl,Christine Preibisch,Claus Zimmer,Michael Helle,Makoto Obara,Jan S Kirschke,Stephan Kaczmarz
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55. Jahrestagung der Deutschen Gesellschaft für Neuroradiologie e.V. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-09-23
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Emergency Carotid Endarterectomy Instead of Carotid Artery Stenting Reduces Delayed Hemorrhage in Thrombectomy Stroke Patients. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-09-17 Raveena Singh,Sven Dekeyzer,Arno Reich,Drosos Kotelis,Alexander Gombert,Martin Wiesmann,Omid Nikoubashman
Purpose Data in the literature suggest that thrombectomy with emergency carotid artery stenting (CAS) in acute stroke is associated with an increased hemorrhage rate. As we perform thrombectomy with the patient under general anesthesia, we avoid emergency CAS and perform emergency carotid endarterectomy (CEA) as an alternative to CAS in the same anesthesia session in our angiography suite whenever
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Standard Diffusion-weighted MRI for the Diagnosis of Central Retinal Artery Occlusion : A Case-Control Study. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-09-16 L A Danyel,G Bohner,F Connolly,E Siebert
Purpose To evaluate diffusion abnormalities of the retina and optic nerve in patients with central retinal artery occlusion (CRAO) using standard stroke diffusion-weighted magnetic resonance imaging (DWI). Methods In this case-control study, DWI scans of patients with nonarteritic CRAO were retrospectively assessed for acute ischemia of the retina and optic nerve. Two neuroradiologists, blinded for
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Performance of Automated Attenuation Measurements at Identifying Large Vessel Occlusion Stroke on CT Angiography. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-09-16 Paul Reidler,Lena Stueckelschweiger,Daniel Puhr-Westerheide,Katharina Feil,Lars Kellert,Konstantinos Dimitriadis,Steffen Tiedt,Moriz Herzberg,Jan Rémi,Thomas Liebig,Matthias P Fabritius,Wolfgang G Kunz
Purpose Computed tomography angiography (CTA) is routinely used to detect large-vessel occlusion (LVO) in patients with suspected acute ischemic stroke; however, visual analysis is time consuming and prone to error. To evaluate solutions to support imaging triage, we tested performance of automated analysis of CTA source images (CTASI) at identifying patients with LVO. Methods Stroke patients with
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Neurointervention in the 2020s: Where are We Going? Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-09-11 Mayank Goyal,Wim van Zwam,Jacques Moret,Johanna Maria Ospel
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Reasons for Failed Mechanical Thrombectomy in Posterior Circulation Ischemic Stroke Patients. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-09-07 Charlotte S Weyland,Ulf Neuberger,Arne Potreck,Johannes A R Pfaff,Simon Nagel,Silvia Schönenberger,Martin Bendszus,Markus A Möhlenbruch
Background and Purpose To determine reasons for failed recanalization in mechanical thrombectomy (MT) of the posterior circulation. Methods Retrospective single center analysis of reasons for MT failure in the posterior circulation. Failed MTs were categorized according to the reason for procedure failure in failed vascular access, failed passage of the target vessel occlusion and MT failure after
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pCONUS for Distal Artery Protection During Complex Aneurysm Treatment by Endovascular Parent Vessel Occlusion-A Technical Nuance. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-09-07 Victoria Hellstern,Marta Aguilar-Pérez,Maike Dukiewicz,Gottlieb Maier,Hansjörg Bäzner,Hans Henkes
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Treatment of Ruptured and Unruptured Intracranial Aneurysms with WEB 17 Versus WEB 21 Systems : Comparison of Indications and Early Angiographic Outcomes. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-09-03 I König,C Maurer,A Berlis,V Maus,W Weber,S Fischer
Background The concept of intrasaccular flow diversion using the Woven EndoBridge (WEB) device changed the traditional endovascular concept for wide-necked bifurcation aneurysms. The latest technical advancement resulted in the WEB 17 system, a softer device composed of fewer wires which enables treatment of smaller more distally located aneurysms by using smaller microcatheters as compared to the
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Methylenetetrahydrofolate Reductase Deficiency as a Cause of Treatable Adult-onset Leukoencephalopathy and Myelopathy. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-09-03 Santhakumar Senthilvelan,Sathish Kandasamy,Ramshekhar N Menon,Sheela Nampoothiri,Harikrishnan Ramachandran,Bejoy Thomas,Chandrasekharan Kesavadas
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Expanding the Assessment of Research Activity. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-09-01 László Solymosi
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Freiburg Neuropathology Case Conference : Back Pain and Rapidly Progressing Gait Disorder in a 70-year-old Patient. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-09-01 D Erny,U Taschner,J Nakagawa,H Urbach,M Prinz,C A Taschner
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FLAIR Vascular Hyperintensities Indicate Slow Poststenotic Blood Flow in ICA Stenosis. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-08-31 Paul Apfaltrer,Holger Wenz,Johannes Böhme,Matthias Gawlitza,Christoph Groden,Angelika Alonso,Alex Förster
Purpose Occlusion or significant stenosis of the internal carotid artery (ICA) in the cervical segment is commonly associated with a poststenotic decrease in the downstream blood flow and perfusion. Fluid attenuated inversion recovery (FLAIR) vascular hyperintensities (FVH) are a phenomenon that represents slow arterial blood flow. In this study, we investigated the frequency and extent of FVH in the
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Role of Conventional Dynamic Myelography for Detection of High-Flow Cerebrospinal Fluid Leaks : Optimizing the Technique. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-08-26 Eike I Piechowiak,Katarzyna Pospieszny,Levin Haeni,Christopher M Jesse,Giovanni Peschi,Pascal J Mosimann,Johannes Kaesmacher,Pasquale Mordasini,Andreas Raabe,Christian T Ulrich,Jürgen Beck,Jan Gralla,Tomas Dobrocky
Background Spinal imaging is essential to identify and localize cerebrospinal fluid (CSF) leaks in spontaneous intracranial hypotension (SIH) patients when targeted treatment is necessary. Purpose Provide an in-depth presentation of the conventional dynamic myelography (CDM) technique for localizing spinal CSF leaks in SIH patients. Material and Methods Consecutive SIH patients with a CSF leak confirmed
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Not a String, not a Tangle, not an Aneurysm : Emerging Pattern of Large Parenchymal Bleeding in Younger Patients Associated with Abnormal Vessels on Imaging. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-08-19 Patrick Nicholson,Meah Gao,Ivan Radovanovic,Vitor Mendes-Pereira,Mojgan Hodaie,Aleksandra Pikula,Timo Krings
Purpose Intracerebral hemorrhage (ICH) accounts for up to 20% of all strokes, and there is a high rate of associated morbidity and mortality. Computed tomography (CT) findings, such as a spot sign have been shown to be an independent predictor of poor outcome. We have recently encountered a succession of ICH patients who presented with a peculiar imaging finding, which we term the spot on a string
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Digital Subtraction Myelography is Associated with Less Radiation Dose than CT-based Techniques. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-08-17 Patrick J Nicholson,William C Guest,Monique van Prooijen,Richard I Farb
Purpose Both CT myelogram (CTM) and digital-subtraction myelogram (DSM) can be used to evaluate patients for possible cerebrospinal fluid (CSF) leaks. DSM is a relatively new technique. No data exists on the radiation dose associated with this procedure, and how it compares with CTM. Materials and Methods All patients who underwent DSM for spontaneous intracranial hypotension (SIH) refractory to blood
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Role of Susceptibility-Weighted Imaging in Detecting Retinal Hemorrhages in Children with Head Trauma. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-08-05 Mehmet Gencturk,Isa Cam,Yasemin Koksel,Alexander M McKinney
Purpose This study was carried out to evaluate the utility of susceptibility-weighted imaging (SWI) in demonstrating retinal hemorrhages (RH) in pediatric head trauma. Methods Over a period of 7 years 67 children (age 0–4 years) with head trauma and MRI were included as either abusive head trauma (AHT) (n = 23), non-abusive head trauma (NAHT) (n = 38), or indeterminate (n = 6). Two pediatric neuroradiologists
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Casper vs. Closed-Cell Stent : Carotid Artery Stenting Randomized Trial. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-08-03 José Ricardo Vanzin,Luís Henrique de Castro-Afonso,Moema Nene Santos,Luciano Bambini Manzato,Guilherme Seizem Nakiri,Lucas Moretti Monsignore,Felipe Padovani Trivelato,Marco Túlio Salles Rezende,Octavio Marques Pontes-Neto,Daniel Giansante Abud
Objective The aim of this trial was to compare the efficacy of closed-cell stents with Casper stents during carotid angioplasty stenting (CAS). Methods This was a randomized superiority trial in which 88 patients were enrolled. The primary end points were the incidence, number, and size of new ischemic brain lesions after CAS under distal embolic protection devices (EPD). The secondary end points included
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Duplication of the Inferior Vena Cava Associated with Open Spinal Dysraphism. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-08-03 Nikita Consul,Gunes Orman,Thierry A G M Huisman,Danielle Eckart Sorte,Philippe Gailloud
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Direct Stenting of Intracranial Atherosclerosis-related Acute Large Vessel Occlusion. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-07-30 Joong-Goo Kim,Dae Chul Suh,Yunsun Song,Jay Chol Choi,Deok Hee Lee
Purpose Endovascular reperfusion therapy (ERT) in patients with intracranial atherosclerosis (ICAS)-related acute large vessel occlusion (ALVO) may require different strategies based on the underlying culprit plaque lesion. This study investigated the effectiveness and safety of direct stent placement in ICAS-related ALVO compared with initially attempted mechanical thrombectomy (MT) with or without
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A Novel Imaging Grading Biomarker for Predicting Hearing Loss in Acoustic Neuromas. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-07-27 Wenjianlong Zhou,Yangyang Wang,Shunchang Ma,Linhao Yuan,Xi Wang,Jiayi Peng,Dainan Zhang,Xiudong Guan,Deling Li,Guijun Jia,Wang Jia
Purpose The aim of this study was to investigate an imaging biomarker based on contrast enhanced T1-weighted and T2-weighted magnetic resonance imaging (MRI) to determine the hearing loss related to acoustic neuromas (AN). Methods In this retrospective study, 441 acoustic neuromas treated with microsurgery were included. The diagnostic and follow-up MRI and audiometry of these patients were compared
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Leave Nothing Behind: Treatment of Intracranial Atherosclerotic Disease with Drug-Coated Balloon Angioplasty. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-07-27 Alvin Yi-Chou Wang,Chien-Hung Chang,Ching-Chang Chen,Yi-Ming Wu,Chuan-Min Lin,Chun-Ting Chen,Po-Chuan Hsieh
Purpose Intracranial atherosclerosis disease (ICAD) is an essential cause of stroke. The characteristics of effective treatment include low periprocedural risk and a sustained treatment effect. Angioplasty with a conventional balloon for ICAD is safe but has a dauntingly high restenosis rate. Drug-coated balloon (DCB) angioplasty might reduce the risk of restenosis while maintaining the overall safety
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Detection of Coalescent Acute Mastoiditis on MRI in Comparison with CT. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-07-21 R Saat,G Kurdo,A Laulajainen-Hongisto,A Markkola,J Jero
Purpose Current imaging standard for acute mastoiditis (AM) is contrast-enhanced computed tomography (CT), revealing inflammation-induced bone destruction, whereas magnetic resonance imaging (MRI) outperforms CT in detecting intracranial infection. Our aim was to compare the diagnostic performance of MRI with CT in detecting coalescent AM and see to which extent MRI alone would suffice to diagnose
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Drug-Coated Balloon Treatment in Symptomatic Intracranial High Grade Stenosis : A Retrospective Study of 33 Patients. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-07-20 Luca Remonda,Michael Diepers,Jatta Berberat,Timo Kahles,Javier Anon,Krassen Nedeltchev,Philipp Gruber
Purpose Endovascular therapy (EVT) represents an alternative treatment modality for symptomatic intracranial high-grade atherosclerotic stenosis (sICAS); however, periprocedural complication rates as well as midterm restenosis rates represent relevant limitations of EVT. Drug-coated balloon percutaneous transluminal angioplasty (DCB-PTA) may overcome some of these shortcomings. The aim of this study
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Modeling the Optimal Transportation for Acute Stroke Treatment : Impact of Diurnal Variations in Traffic Rate. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-07-16 Marielle Ernst,Marios-Nikos Psychogios,Eckhard Schlemm,Jessalyn K Holodinsky,Noreen Kamal,Thomas Rodt,Henning Henningsen,Christoffer Kraemer,Götz Thomalla,Jens Fiehler,Caspar Brekenfeld
Purpose Prolonged transfer times between the primary stroke center (PSC) and the comprehensive stroke center (CSC) are one of the major causes of treatment delay for endovascular stroke treatment. We aimed to analyze the effect of the diurnal variations in traffic rates at weekdays and weekends on the catchment area size of three transportation paradigms, i.e. mothership, drip-and-ship (DS) and drip-and-drive
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Imaging in Pediatric Multiple Sclerosis : An Iconographic Review. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-07-16 Gonzalo Barraza,Kumaran Deiva,Béatrice Husson,Catherine Adamsbaum
Pediatric-onset multiple sclerosis (POMS) is defined by a first multiple sclerosis (MS) attack occurring before 18 years old and is diagnosed by demonstration of dissemination in time (DIT) and space (DIS). Although guidelines evolved over the years, they always recognized the importance of magnetic resonance imaging (MRI) for diagnosis. The 2017 McDonald criteria are increasingly used and have been
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Anterior Cranial Fossa Dural Arteriovenous Fistulae - Angioarchitecture and Intervention. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-07-14 Karthik Kulanthaivelu,Hima Pendharkar,Chandrajit Prasad,Arun Kumar Gupta,Arvinda Hanumanthapura Ramalingaiah,Jitender Saini,Dwarakanath Srinivas
Purpose Anterior cranial fossa (ACF) dural arteriovenous fistulae (DAVF) are rare, unique, and ominous. While surgical disconnection is considered as the favored management option, endovascular treatment has lately gained importance. We present a single institution experience of seven cases. Method A retrospective analysis was performed on the institutional patient database. Features analyzed were
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New Concept of Patient-specific Flow Diversion Treatment of Intracranial Aneurysms : Design Aspects and in vitro Fluid Dynamics. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-07-10 Andreas Ding,Andrés Braschkat,Andreas Guber,Giorgio Cattaneo
Purpose Current flow diverter (FD) designs limit the possibilities to achieve ideal functional parameters for intra-aneurysmal flow alteration in the implanted state. In this work, we evaluate the technical feasibility of a new patient-specific FD concept and the impact on intra-aneurysmal flow reduction compared to standard FD. Methods Based on a literature review, we defined functional requirements
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Embolic Stroke of Undetermined Source and Carotid Intraplaque Hemorrhage on MRI : A Systemic Review and Meta-Analysis. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-07-09 Ian T Mark,Deena M Nasr,John Huston,Lucio de Maria,Paolo de Sanctis,Vance T Lehman,Alejandro A Rabinstein,Luca Saba,Waleed Brinjikji
Background Embolic stroke of undetermined source (ESUS) has traditionally discounted the significance of internal carotid artery stenosis of <50%; however, recent studies have examined the role of carotid artery intraplaque hemorrhage (IPH) as an etiology in nonstenotic carotid arteries. We performed a systemic review of the literature to determine the prevalence of carotid artery IPH on magnetic resonance
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Microstructural Alterations Analogous to Accelerated Aging of the Cerebral Cortex in Carotid Occlusive Disease. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-07-07 Alexander Seiler,Annemarie Brandhofe,René-Maxime Gracien,Waltraud Pfeilschifter,Elke Hattingen,Ralf Deichmann,Ulrike Nöth,Marlies Wagner
Purpose To investigate cortical thickness and cortical quantitative T2 values as imaging markers of microstructural tissue damage in patients with unilateral high-grade internal carotid artery occlusive disease (ICAOD). Methods A total of 22 patients with ≥70% stenosis (mean age 64.8 years) and 20 older healthy control subjects (mean age 70.8 years) underwent structural magnetic resonance imaging (MRI)
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High-Degree Middle Cerebral Artery Stenosis : Can Advanced 3D DSA-MRI Fusion Imaging Better Illustrate Plaques and Perforators? Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-07-02 Min Guan,Jia'xing Lin,Sheng'ming Huang,Xin'yi Leng,Chang'zheng Shi,Hong'yu Qiao,Xiang'yu Wang,Li'an Huang
Purpose Endovascular treatment in severe middle cerebral artery (MCA) stenosis is controversial owing to high rates of periprocedural complications, especially occlusion of the lenticulostriate arteries (LSA). The characteristics of LSAs and the spatial relationships between MCA plaques and LSAs using the fusion of three-dimensional (3D) digital subtraction angiography (DSA) and magnetic resonance
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Initial Raymond-Roy Occlusion Classification but not Packing Density Defines Risk for Recurrence after Aneurysm Coiling. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-07-01 Tobias Greve,Maximilian Sukopp,Maria Wostrack,Egon Burian,Claus Zimmer,Benjamin Friedrich
Purpose After coil embolization of intracranial aneurysms, it is currently not well understood whether the initial coil packing density or the type of aneurysm residual perfusion, depicted by the modified Raymond-Roy occlusion classification, primarily effects the rate of aneurysm recurrence. We hypothesized that these factors interact and only one remains an independent risk factor. Methods In this
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Immediate Abnormal Intrinsic Brain Activity Patterns in Patients with End-stage Renal Disease During a Single Dialysis Session : Resting-state Functional MRI Study. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-06-29 Cong Peng,Hua Yang,Qian Ran,Ling Zhang,Chengxuan Liu,Yu Fang,Yingjiang Liu,Yi Cao,Renrong Liang,He Ren,Qinqin Hu,Xiuting Mei,Yang Jiang,Tianyou Luo
Purpose To investigate cerebral amplitude of low-frequency fluctuations (ALFF) changes during a single hemodialysis (HD) in end-stage renal disease (ESRD) patients who need maintenance HD. Materials and Methods A total of 24 patients and 27 healthy subjects were included. The patients underwent neuropsychological tests and took twice resting-state fMRI (rs-fMRI) (before and after HD). Healthy group
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Evaluation After Cochlear Implant Surgery : Correlation of Clinical Outcome and Imaging Findings using Flat-detector CT. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-06-15 Annika Stock,Victoria Bozzato,Stephan P Kloska,Alessandro Bozzato,Ulrich Hoppe,Joachim Hornung,Arnd Dörfler,Tobias Struffert
Purpose Assessment of the cochlear implant (CI) electrode array position using flat-detector computed tomography (FDCT) to test dependence of postoperative outcome on intracochlear electrode position. Methods A total of 102 patients implanted with 107 CIs underwent FDCT. Electrode position was rated as 1) scala tympani, 2) scala vestibuli, 3) scalar dislocation and 4) no deconvolution. Two independent
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Acute Ischemic Stroke Hemorrhagic Transformation at Angiography Before Mechanical Thrombectomy : A Neurointerventional Dilemma. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-06-16 Rui Duarte Armindo,Pedro Vilela
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Roadmap-assisted V3 Vertebral Artery Interventional Approach to the Basilar Artery : Case Report and Systematic Search of the Literature. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-06-16 Mahmoud Elhorany,Maichael Talaat,Marion Masingue,Amine Daoudi,Kevin Premat,Stéphanie Lenck,Yves Samson,Nader-Antoine Sourour,Frédéric Clarençon,Eimad Shotar
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Mechanical Thrombectomy in Acute Ischemic Stroke Using a Manually Expandable Stent Retriever (Tigertriever) : Preliminary Single Center Experience. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-06-11 L Will,V Maus,C Maurer,A Weber,W Weber,S Fischer
Objective The aim of this study was to evaluate the safety and efficacy of a manually expandable stent retriever (Tigertriever, Rapid Medical, Yoqneam, Israel) in the treatment of acute ischemic stroke caused by intracranial large vessel occlusions (LVO). Methods We performed a single center retrospective analysis of all patients treated by mechanical thrombectomy due to LVO using the Tigertriever
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Deep Cerebral Venous Thrombosis Treatment : Endovascular Case using Aspiration and Review of the Various Treatment Modalities. Clin. Neuroradiol. (IF 3.183) Pub Date : 2020-06-11 Leonard Ll Yeo,Priscillia Ps Lye,Kong Wan Yee,Yang Cunli,Tu Tian Ming,Andrew Fw Ho,Vijay K S