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Journal of Neuroradiology. Journal de Neuroradiologie

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https://www.readbyqxmd.com/read/28238522/endovascular-thrombectomy-and-medical-therapy-versus-medical-therapy-alone-in-acute-stroke-a-randomized-care-trial
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
Waleed Brinjikji, Vance T Lehman, David F Kallmes, Alejandro A Rabinstein, Giuseppe Lanzino, Hassan M 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
#8
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
#9
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/28168991/intracranial-stenting-after-the-wingspan-withdrawal-in-france-clinical-experience-using-a-low-profile-coronary-stent
#10
LETTER
Cyril Dargazanli, Daniel Mantilla, Ulrike Wiesspeiner, Xavier Ayrignac, Vincent Costalat
No abstract text is available yet for this article.
February 3, 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
#11
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/28162787/serial-mri-images-of-an-unusual-presentation-of-anti-gad-encephalitis-a-new-pattern
#12
LETTER
Anastasia Bougea, Vasiliki Zouvelou, Georgios Velonakis, Michail Rentzos
No abstract text is available yet for this article.
February 2, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28131432/dominant-vertebral-artery-status-and-functional-outcome-after-endovascular-therapy-of-symptomatic-basilar-artery-occlusion
#13
Jun Young Chang, Seunguk Jung, Cheolkyu Jung, Hee-Joon Bae, Oki Kwon, Moon-Ku Han
BACKGROUND AND PURPOSE: To determine whether status of dominant vertebral artery could affect clinical outcome in patients with symptomatic basilar artery occlusion (BAO). METHODS: We reviewed patients with symptomatic BAO who underwent endovascular treatment at the institute between January 2007 and July 2014. Patients were categorized into 2 groups according to functional outcome and baseline characteristics, treatment related factors were compared. Variables including clinical and imaging parameters were also compared according to the dominant V1 lesion...
January 25, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27939372/diagnostic-performance-of-ct-cerebral-blood-volume-colour-maps-for-evaluation-of-acute-infarcts-comparison-with-diffusion-weighted-mri-within-12hours-of-major-stroke-onset
#14
Enas A Abdelgawad, Mahmoud M Higazi, Abdelraouf O Abdelbaky, Hosny S Abdelghany
BACKGROUND AND PURPOSE: Recent developments in treatment of ischemic stroke increased importance of defining limits of ischemic insult by imaging. Some studies postulated that CTP is a promising technique, which can discriminate between ischemic core and penumbra. In this study, we sought to evaluate diagnostic performance of CTP-CBV colour maps, regarded as a marker of acute infarct; in comparison with DWI. MATERIALS AND METHODS: We retrospectively analyzed 48 patients with CTA proved major ischemic stroke within 12hours of onset, they had DWI and CTP exams within 1hour of each other, regardless of order...
December 7, 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27743787/angiographic-embolization-of-internal-carotid-artery-pseudo-aneurysm-using-a-covered-jostent-and-histoacryl-glue
#15
LETTER
Tanveer Ul Haq, Muhammad Awais, Abdul Rehman
No abstract text is available yet for this article.
December 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27726888/imaging-characteristics-of-cerebral-sparganosis-with-live-worms
#16
Haiyan Liao, Detai Li, Bing Zhou, Jun Liu, Yajun Li, Hui Liu, Yuzhi Wu, Xiongzhao Zhu, Changlian Tan
BACKGROUND AND PURPOSE: The purpose of this study was to analyze the computed tomography (CT) and magnetic resonance imaging (MRI) features of cerebral sparganosis to improve the accuracy of diagnosing cerebral sparganosis with medical imaging modalities. MATERIALS AND METHODS: This was a retrospective study of CT and MRI features of 12 patients with cerebral sparganosis. A comparative analysis between imaging findings, and intraoperative and postoperative pathological findings was performed...
December 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27720265/brain-parenchymal-fraction-in-an-age-stratified-healthy-population%C3%A2-%C3%A2-determined-by-mri-using-manual-segmentation-and-three-automated-segmentation-methods
#17
Mattias Vågberg, Khalid Ambarki, Thomas Lindqvist, Richard Birgander, Anders Svenningsson
BACKGROUND AND PURPOSE: Brain atrophy is a prominent feature in many neurodegenerative diseases, such as multiple sclerosis, but age-related decrease of brain volume occurs regardless of pathological neurodegeneration. Changes in brain volume can be described by use of the brain parenchymal fraction (BPF), most often defined as the ratio of total brain parenchyma to total intracranial space. The BPF is of interest both in research and in clinical practice. To be able to properly interpret this variable, the normal range of BPF must be known...
December 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27697298/mammillary-bodies-infiltration-in-langerhans-cell-histiocytosis
#18
LETTER
Jonathan Broner, Florian Danière, Bérengère Coestier, Nicolas Menjot de Champfleur, Alain Le Quellec
No abstract text is available yet for this article.
December 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27521057/reversible-diffusion-restriction-in-the-splenium-of-the-corpus-callosum-due-to-severe-hypoglycemia-a-case-report-and-literature-review
#19
LETTER
Halil Onder
No abstract text is available yet for this article.
December 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27318387/quantification-of-diffusion-and-anisotropy-in-intracranial-epidermoids-using-diffusion-tensor-metrics-and-p-q-tensor-decomposition
#20
K Srinivasan, B Thomas, D Shah, S K Kannath, G Menon, S Sandhyamani, C Kesavadas, T R Kapilamoorthy
PURPOSE: To quantitatively evaluate the diffusion tensor metrics p, q, L and fractional anisotropy in intracranial epidermoids in comparison with normal white matter in the splenium of the corpus callosum. METHODS: This retrospective study included 20 consecutive patients referred to our institute. All patients had a magnetic resonance imaging (MRI) study on a 1.5-Tesla MR system. A spin-echo echo-planar DTI sequence with diffusion gradients along 30 non-collinear directions was performed...
December 2016: Journal of Neuroradiology. Journal de Neuroradiologie
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