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Journal of Neuroradiology. Journal de Neuroradiologie

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https://www.readbyqxmd.com/read/28262374/should-indications-for-web-aneurysm-treatment-be-enlarged-report-of-a-series-of-20%C3%A2-patients-with-aneurysms-in-atypical-locations-for-web-treatment
#1
L Pierot, A Biondi, A-P Narata, C Mihalea, A-C Januel, G Metaxas, R Bibi, J Caroff, S Soize, C Cognard, L Spelle, D Herbreteau
BACKGROUND AND PURPOSE: Flow disruption with the WEB device is an innovative technique for the endovascular treatment of wide neck bifurcation aneurysms. Good clinical practice trials have shown high safety of this treatment with good efficacy. Technical developments (single layer devices and smaller microcatheters) facilitate the treatment, potentially leading to enlargement of indications. This series is collecting aneurysms in "atypical" locations for WEB treatment and analyzing safety and efficacy of this treatment...
March 2, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28258760/comparison-between-enhanced-susceptibility-weighted-angiography-and-time-of-flight-sequences-in-the-detection-of-arterial-occlusion-in-acute-ischemic-stroke
#2
O Vanaerde, J-F Budzik, A Mackowiak, L Norberciak, M Uettwiller, X Leclerc, S Verclytte
PURPOSE: Optimizing the MRI protocol in acute ischemic stroke remains a challenging issue. In this field, susceptibility-weighted sequences have proved their superiority over T2*. Besides the strengthened susceptibility effect, enhanced susceptibility-weighted angiography (eSWAN) sequence provides also a time-of-flight (TOF) effect, allowing the exploration of the intracranial arterial circulation. The objective of our study was to compare eSWAN and 3D TOF, considered as the reference, in the detection of arterial occlusion in acute stroke...
February 28, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28249747/the-association-between-collateral-status-recanalization-and-long-term-outcome-in-stroke-patients-treated-with-stent-retrievers-are-there-indications-not-to-perform-thrombectomy-based-on-ct-angiography
#3
Hannes Nordmeyer, Nadine Webering, Rene Chapot, Jeffrie Hadisurya, Markus Heddier, Paul Stracke, Klaus Berger, Stefan Isenmann, Ralph Weber
BACKGROUND AND PURPOSE: To investigate the association between baseline pial collateral status on computed tomography angiography (CTA) with recanalization and functional outcome in patients with acute anterior circulation stroke treated with stent retriever thrombectomy. MATERIAL AND METHODS: Retrospective analysis of 87 patients from a prospective thrombectomy registry. Collateral status on CTA source images was categorized into good, moderate, and poor with the Tan and Miteff scores by two-blinded readers...
February 26, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28238522/endovascular-thrombectomy-and-medical-therapy-versus-medical-therapy-alone-in-acute-stroke-a-randomized-care-trial
#4
Naim N Khoury, Tim E Darsaut, Jimmy Ghostine, Yan Deschaintre, Nicole Daneault, André Durocher, Sylvain Lanthier, Alexandre Y Pope, Céline Odier, Louise-Hélène Lebrun, François Guilbert, Jean-Christophe Gentric, André Batista, Alain Weill, Daniel Roy, Serge Bracard, Jean Raymond
BACKGROUND: Until recently, the benefits of endovascular treatment in stroke were not proven. Care trials have been designed to simultaneously offer yet-to-be validated interventions and verify treatment outcomes. Our aim was to implement a care trial for patients with acute ischemic stroke. METHODS: The study was offered to all patients considered for endovascular management of acute ischemic stroke in one Canadian hospital. Inclusion criteria were broad: onset of symptoms≤5h or at any time in the presence of clinical-imaging mismatch and suspected or demonstrated proximal large vessel occlusion...
February 23, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28237366/ct-perfusion-diagnoses-delayed-cerebral-ischemia-in-the-early-stage-of-the-time-window-after-aneurysmal-subarachnoid-hemorrhage
#5
Haogeng Sun, Wanjiang Li, Junpeng Ma, Yi Liu, Chao You
BACKGROUND AND PURPOSE: It has been acknowledged that delayed cerebral ischemia (DCI) after aneurysmal subarachnoid hemorrhage (SAH) can be diagnosed by CT perfusion (CTP) in the DCI time-window. We evaluated the diagnostic accuracy of CTP for DCI during the early stage of the time-window. MATERIALS AND METHODS: We prospectively enrolled patients with aneurysmal SAH. DCI was defined as both new cerebral infarction and clinical deterioration after SAH. CTP was performed by using a standardized protocol with predefined regions of interest in 4 to 6 days after SAH...
February 22, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28237365/can-a-15-sec-flair-replace-conventional-flair-sequence-in-stroke-mr-protocols
#6
J Benzakoun, B Maïer, D Calvet, M Edjali, G Turc, S Lion, L Legrand, W Ben Hassen, O Naggara, J F Meder, J L Mas, C Oppenheim
BACKGROUND AND PURPOSE: Triage imaging facilitates the timely recognition of acute stroke with prognostic implications. Improvement in MR acquisition speed is needed given the extreme time constraints before treatment. We compared an ultrafast Echo-Planar FLAIR sequence (EPI-FLAIR) and a conventional FLAIR sequence (cFLAIR) for their diagnostic performances and ability to estimate the age of infarction. MATERIAL AND METHODS: Between June and August 2014, 125 consecutive patients (age 69±18 years, 48% men) admitted for a suspicion of acute (≤48-hrs) stroke were explored by both FLAIR sequences at 1...
February 22, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28236497/overdiagnosis-incidental-findings-and-socrates-three-sieves
#7
EDITORIAL
Jean Raymond, Hélène Long, David J Roy
No abstract text is available yet for this article.
February 21, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28222909/primary-central-nervous-system-natural-killer-t-cell-lymphoma-an-atypical-case-of-chronic-meningitis
#8
LETTER
Lucas Alessandro, Federico Carpani, Naomi Arakaki, Diego Kaski, Hernan Chaves
No abstract text is available yet for this article.
February 17, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28215716/validation-of-a-quantitative-susceptibility-mapping-acquisition-and-reconstruction-pipeline-using-a-new-iron-sucrose-based-mr-susceptibility-phantom
#9
Jeremy Deverdun, François Molino, Nicolas Menjot de Champfleur, Emmanuelle Le Bars
PURPOSE: Quantitative susceptibility mapping is a new technique and its processing pipeline has to be validated before clinical practice. We described an easy to build magnetic resonance (MR) susceptibility phantom based on iron sucrose. MATERIALS AND METHODS: In a plastic container, Eppendorf tubes containing increasing iron sucrose concentration ranging from 0 to 60μg Fe/mL were inserted in an agarose gel. To estimate susceptibility, multiple coronal gradient echo acquisitions were performed with varying angle of the phantom relative to the B0 field, ranging from 30 to 90°...
February 16, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28187866/the-effects-of-statin-therapy-on-carotid-plaque-composition-and-volume-a-systematic-review-and-meta-analysis
#10
Waleed Brinjikji, Vance T Lehman, David F Kallmes, Alejandro A Rabinstein, Giuseppe Lanzino, Mohammad H Murad, Sharon Mulvagh, James Klaas, Jonathan Graff-Radford, Kevin J DeMarco, John Huston Iii
BACKGROUND AND PURPOSE: Prior studies have demonstrated that statin use stabilizes and diminishes atherosclerotic lesions. The main objective of this systematic review and meta-analysis was to study the effects of statin therapy on carotid plaque composition as seen on serial high-resolution carotid plaque MRI. We hypothesized that statin therapy would result in significant improvements in lipid-rich-necrotic-core (LRNC) volumes, wall volumes and lumen volumes. MATERIALS AND METHODS: Prospective studies using serial high-resolution carotid plaque MRI (1...
February 7, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28187865/a-new-threshold-of-apparent-diffusion-coefficient-values-in-white-matter-after-successful-tissue-plasminogen-activator-treatment-for-acute-brain-ischemia
#11
Atsushi Sato, Yusaku Shimizu, Junichi Koyama, Kazuhiro Hongo
BACKGROUND AND PURPOSE: Tissue plasminogen activator (tPA) is effective for the treatment of acute brain ischemia, but may trigger fatal brain edema or hemorrhage if the brain ischemia results in a large infarct. Herein, we attempted to predict the extent of infarcts by determining the optimal threshold of ADC values on DWI that predictively distinguishes between infarct and reversible areas, and by reconstructing color-coded images based on this threshold. MATERIALS AND METHODS: The study subjects consisted of 36 patients with acute brain ischemia in whom MRA had confirmed reopening of the occluded arteries in a short time (mean: 99min) after tPA treatment...
February 7, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28185669/electrical-stimulation-and-monitoring-devices-of-the-cns-an-imaging-review
#12
REVIEW
Sohil H Patel, Casey H Halpern, Timothy M Shepherd, Vincent M Timpone
Functional neurosurgery is a rapidly growing field with exciting future potential applications. This article describes currently used implanted electronic devices for neurologic stimulation and monitoring. The devices to be reviewed include invasive EEG electrodes, deep brain stimulator, motor cortex stimulator, responsive neurostimulation, osteo-integrated hearing aid, middle ear implant, cochlear implant, auditory brainstem implant, vagal nerve stimulator and spinal cord stimulator. Emphasis is placed on the normal components, function, positioning, potential complications and MRI safety of these devices...
February 6, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28168990/clinical-assessment-of-cerebral-hemodynamics-in-moyamoya-disease-via-multiple-inversion-time-arterial-spin-labeling-and-dynamic-susceptibility-contrast-magnetic-resonance-imaging-a-comparative-study
#13
Peng-Gang Qiao, Cong Han, Zhi-Wei Zuo, Yi-Tuo Wang, Josef Pfeuffer, Lian Duan, Tianyi Qian, Gong-Jie Li
BACKGROUND AND PURPOSE: For Moyamoya disease (MMD) patients, accurate hemodynamic assessment is critical for treatment selection and efficacy assessment. This study aims to investigate the clinical value of mTI-ASL in assessing the cerebral hemodynamics of MMD patients before and after revascularization, relative to DSC-MRI. MATERIALS AND METHODS: Forty-one MMD patients underwent mTI-ASL and DSC-MRI during blood perfusion. Quantitative parameters for the bilateral supply vessels of middle and anterior cerebral arteries, including DSC-TTP, DSC-CBF, ASL-BAT, and ASL-CBF were measured...
February 3, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28330069/glioblastomes%C3%A2-spectroscopie-in-vivo-et-anatomopathologie-in-vitro-pour-le-pronostic-et-le-suivi-du-traitement
#14
A Chamkhi, O Seloi, A Heintz, G Toubeau, M Lefranc, J Peltier, C Desenclos, A Coutte, R Popoff, B Chauffert, M Boone, H Sevestre, J-M Constans
No abstract text is available yet for this article.
March 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28330068/syndrome-de-fahr-associ%C3%A3-%C3%A3-une-hypoparathyro%C3%A3-die-r%C3%A3-v%C3%A3-l%C3%A3-e-par-des-crises-convulsives%C3%A2-%C3%A3-propos-d%C3%A2-un-cas
#15
Badr Chaoui, Youssef Omor, Ittimade Nassar, Nabil Moatassimbillah
No abstract text is available yet for this article.
March 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28330067/une-localisation-rare-d%C3%A2-un-g%C3%A3-ant-ad%C3%A3-nome-pl%C3%A3-omorphe
#16
Oumkaltoum Taiaa, Badr Chaoui, Z Sayad, R Zrarqi, S Elmourabit, S Benazzou, M Boulaadas, L Essakkali, M Fikri, N El Kettani, A Elkhamlichi, M-R Elhassani, M Jiddane
No abstract text is available yet for this article.
March 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28330066/endolymphatic-hydrops-imaging-why-oving-from-semi-quantitative-to-anatomical-based-evaluation
#17
Michael Eliezer, Irène Tropres, Alexandre Krainik, Arnaud Attye
INTRODUCTION: Recently, the semi-quantitative ratio grading for endolymphatic hydrops (EH) was found as none specific of MD because all healthy subjects referred with at least one hydrops location with this grading method and 3D-FLAIR sequence. The objectives of this study were to assess the EH prevalence in MD using both the semi-quantitative ratio method of grading and the Saccule to Utricle Ration Inversion (SURI) technique with two 3D-FLAIR sequences, closely similar except for the inversion time of the sequence...
March 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28330065/int%C3%A3-r%C3%A3%C2%AAt-de-l%C3%A2-imagerie-en-coupe-dans-les-spondylodiscites-tuberculeuses
#18
Nissrine Hida, Fatimazohra Benabdellah, Asmae Ouladamar, Imane Boutahar, Samba Traoré, Narjiss Aichouni, Soumia Nasri, Mohamed Kane, Imane Kamaoui, Imane Skiker
No abstract text is available yet for this article.
March 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28330064/mise-en-place-des-atlas-des-territoires-vasculaires-c%C3%A3-r%C3%A3-braux%C3%A2-la-zone-jonctionnelle-interne
#19
Sylvain Grange, Fabien Schneider, Rémi Grange, Rémi Richaud, Pierre Garnier, Fabrice-Guy Barral, Claire Boutet
No abstract text is available yet for this article.
March 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28330063/comment-diff%C3%A3-rencier-l%C3%A2-h%C3%A3-matome-du-produit-de-contraste-en-imagerie-spectrale%C3%A2
#20
Pierre-Marie Perigault, Remi Carrion, Adrien Bouchet
No abstract text is available yet for this article.
March 2017: Journal of Neuroradiology. Journal de Neuroradiologie
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