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Journal of Neuroradiology. Journal de Neuroradiologie

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https://www.readbyqxmd.com/read/27908450/the-learning-curve-effect-on-embolization-of-cerebral-dural-arteriovenous-fistula-single-center-experience-in-48%C3%A2-consecutive-patients
#1
D Le Foll, H Raoult, J C Ferré, F Naudet, D Trystram, J Y Gauvrit
BACKGROUND: Cerebral dural arteriovenous fistulas (DAVFs) are rare intracranial vascular lesions but can cause significant morbidity and mortality. OBJECTIVES: To analyze the effect of the center's experience on DAVF embolization efficacy and safety. METHODS: From May 2008 to October 2014, 57 embolization procedures were attempted on 48 patients (37 men and 11 women; median age: 63.9 years) for DAVF in a single center. DAVF presented with cortical venous reflux in 44/48 cases (91...
November 28, 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27890452/interhypothalamic-adhesion-and-multiple-cerebral-abnormalities-in-a-2-year-old-boy
#2
LETTER
Antoine Loubet, Cyril Dargazanli, Charles Joris Roux, François Rivier, Nicolas Menjot de Champfleur, Nicolas Leboucq
No abstract text is available yet for this article.
November 24, 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27865557/hypoperfusion-of-the-thalamus-is-associated-with-disability-in-relapsing-remitting-multiple-sclerosis
#3
Emilie Doche, Angèle Lecocq, Adil Maarouf, Guillaume Duhamel, Elisabeth Soulier, Sylviane Confort-Gouny, Audrey Rico, Maxime Guye, Bertrand Audoin, Jean Pelletier, Jean-Philippe Ranjeva, Wafaa Zaaraoui
BACKGROUND: While gray matter (GM) perfusion abnormalities have been evidenced in multiple sclerosis (MS) patients, the relationships with disability still remain unclear. Considering that atrophy is known to impact on perfusion, we aimed to assess perfusion abnormalities in GM of MS patients, outside atrophic regions and investigate relationships with disability. METHODS: Brain perfusion of 23 relapsing remitting MS patients and 16 matched healthy subjects were assessed at 3T using the pseudo-continuous arterial spin labeling magnetic resonance imaging technique...
November 16, 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27836654/follow-up-of-intracranial-aneurysms-treated-with-stent-assisted-coiling-comparison-of-contrast-enhanced-mra-time-of-flight-mra-and-digital-subtraction-angiography
#4
David Marciano, Sébastien Soize, Georgios Metaxas, Christophe Portefaix, Laurent Pierot
BACKGROUND AND PURPOSE: Data about non-invasive follow-up of aneurysm after stent-assisted coiling is scarce. We aimed to compare time-of-flight (TOF) magnetic resonance angiography (MRA) (3D-TOF-MRA) and contrast-enhanced MRA (CE-MRA) at 3-Tesla, with digital subtraction angiography (DSA) for evaluating aneurysm occlusion and parent artery patency after stent-assisted coiling. MATERIALS AND METHODS: In this retrospective single-center study, patients were included if they had an intracranial aneurysm treated by stent-assisted coiling between March 2008 and June 2015, followed with both MRA sequences (3D-TOF-MRA and CE-MRA) at 3-Tesla and DSA, performed in an interval<48hours...
November 8, 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27836653/prevalence-of-simple-and-complex-sacral-perineural-tarlov-cysts-in-a-french-cohort-of-adults-and-children
#5
Félix P Kuhn, Sonia Hammoud, Marie-Martine Lefèvre-Colau, Serge Poiraudeau, Antoine Feydy
OBJECTIVE: To determine the prevalence of simple and complex sacral perineural Tarlov cysts (TCs) in a cohort of children and adults. MATERIAL AND METHODS: Retrospective observational epidemiological study assessing 1100 consecutive sacral magnetic resonance (MR) studies, including 100 children and adolescents. All patients underwent 1.5T MR imaging with T1 and T2 weighted image acquisitions in sagittal and axial planes. All perineural cysts affecting the sacral nerve roots S1-S4 were quantitatively and qualitatively assessed...
November 8, 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27836652/intracranial-vessel-wall-imaging-for-evaluation-of-steno-occlusive-diseases-and-intracranial-aneurysms
#6
REVIEW
Waleed Brinjikji, Mahmud Mossa-Basha, John Huston, Alejandro A Rabinstein, Giuseppe Lanzino, Vance T Lehman
Cerebrovascular diseases have traditionally been classified, diagnosed and managed based on their luminal characteristics. However, over the past several years, several advancements in MRI techniques have ushered in high-resolution vessel wall imaging (HR-VWI), enabling evaluation of intracranial vessel wall pathology. These advancements now allow us to differentiate diseases which have a common angiographic appearance but vastly different natural histories (i.e. moyamoya versus atherosclerosis, reversible cerebral vasoconstriction syndrome versus vasculitis, stable versus unstable intracranial aneurysms)...
November 8, 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27836651/magnetic-resonance-imaging-characteristics-of-ischemic-stroke-in-an-afro-caribbean-population-a-1-year-prospective-mri-study-on-534%C3%A2-consecutive-patients
#7
M Mejdoubi, A Signate, S Colombani, A Arrigo, S Olindo
PURPOSES: Few population-based MRI studies on stroke, particularly in African-descent populations, are available. Based on a 1-year Afro-Caribbean population-based study MRI, ischemic stroke characteristics were extensively analyzed. METHODS: All strokes occurring in Martinique (390,371 inhabitants) were prospectively included. Ascertainment was based, whenever possible, on MRI. All patients were categorized as single- (subclassified as cortical, cortical-subcortical, subcortical, lacunar) or multiple-lesion pattern, and vascular (single, multiple or junctional) territory...
November 8, 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27836650/t2-based-mr-imaging-of-hyperglycemia-induced-hemichorea-hemiballism
#8
Fang Yu, Andrew Steven, Lee Birnbaum, Wilson Altmeyer
INTRODUCTION: Hyperglycemia can induce hemichorea-hemiballism, especially in elderly type II diabetics. CT and MRI findings include hyperdensity and T1-shortening in the contralateral lentiform nucleus, respectively. This study explores the associated imaging findings on T2*-based sequences. METHODS: Six patients with clinically documented hyperglycemia-induced hemichorea-hemiballism who had undergone MR imaging with a T2*-based sequence (T2* gradient echo or susceptibility-weighted imaging) were included in this retrospective case series...
November 8, 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27814888/dynamic-contrast-enhanced-magnetic-resonance-angiography-for-the-localization-of-spinal-dural-arteriovenous-fistulas-at-3t
#9
G Zhou, M H Li, C Lu, Y L Yin, Y Q Zhu, X E Wei, H T Lu, Q Q Zheng, W W Gao
OBJECTIVE: This study was undertaken to evaluate the accuracy of dynamic contrast-enhanced magnetic resonance angiography (DCE-MRA) in the precise location and demonstration of fistulous points in spinal dural arteriovenous fistulas (SDAVFs). METHODS: Fifteen patients (14 men, 1 woman; age range: 40-78 years; mean: 55.5 years) harboring SDAVF who underwent preoperative DCE-MRA and spinal digital subtraction angiography (DSA) between January 2012 and January 2015 were evaluated retrospectively...
November 1, 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27814887/central-nervous-system-mri-and-cardiac-implantable-electronic-devices
#10
REVIEW
Romain Cadieu, Maryline Perron, Florent Le Ven, Sebastien Kerdraon, Claire Boutet, Jacques Mansourati, Douraied Ben Salem
As the population ages and indications for MRI increase, it is estimated that 50 to 75% of patients with a cardiac implantable electronic device (CIED) - pacemaker (PM) or implanted cardiac defibrillator (ICD) - will need an MRI during their CIED's lifetime. Three categories of materials are defined: MRI compatible, MRI non-compatible, and MRI conditional. MRI compatible CIEDs without electrodes have been developed, but do not allow battery changes, so that they are exclusively indicated for patients whose life expectancy is less than that of the battery (6-7years)...
November 1, 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27743788/cerebrovascular-reactivity-in-the-caudate-nucleus-lentiform-nucleus-and-thalamus-in-patients-with-carotid-artery-disease
#11
Nolan S Hartkamp, Reinoud P H Bokkers, M J P van Osch, Gert J de Borst, Jeroen Hendrikse
BACKGROUND AND PURPOSE: To assess the effect of unilateral large vessel disease upon the cerebral hemodynamic autoregulatory status in the basal ganglia of patients with steno-occlusive internal carotid artery (ICA) disease. MATERIALS AND METHODS: Twenty-five healthy volunteers and 38 patients with a unilateral symptomatic steno-occlusive ICA lesion and were investigated; 20 with a stenosis >50% and 18 with an occlusion. Cerebral blood flow (CBF) and cerebrovascular reactivity (CVR) were assessed with pseudo-continuous arterial spin labeling (ASL) magnetic resonance (MR) imaging before and after administration of acetazolamide...
October 12, 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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
https://www.readbyqxmd.com/read/27255680/hiv-associated-vasculopathy-potential-pitfall-for-iv-thrombolysis-and-indication-for-vessel-wall-imaging
#18
LETTER
Cyril Dargazanli, Nicolas Menjot de Champfleur, Astrid Corlobé, Alain Bonafé, Pierre Labauge, Eric Thouvenot, Caroline Arquizan
No abstract text is available yet for this article.
December 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27137084/cytomegalovirus-encephalitis-undescribed-diffusion-weighted-imaging-characteristics-original-aspects-of-cases-extracted-from-a-retrospective-study-and-from-literature-review
#19
Thibaut Renard, Benjamin Daumas-Duport, Elisabeth Auffray-Calvier, Romain Bourcier, Hubert Desal
INTRODUCTION: There is paucity of studies analyzing DWI in MRI sequences when imaging cytomegalovirus (CMV) meningoencephalitis. The main objective of this study is to demonstrate that DWI sequence is mandatory when imaging immunocompromised patients presenting with encephalitic symptoms, as this sequence can reveal very peculiar lesions in the setting of CMV encephalitis. PATIENTS AND METHOD: Three CSF PCR CMV positive cases were identified in a 13-year retrospective study with MRI scans including T1, FLAIR, DWI with automated ADC calculation, and T1 with contrast injection, and were reviewed by a senior neuroradiologist...
December 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27126633/absolute-and-regional-cerebral-perfusion-assessment-feasibility-in-head-down-position-with-arterial-spin-labeling-magnetic-resonance-a-preliminary-report-on-healthy-subjects
#20
Aude Pavilla, Alessandro Arrigo, Sylvie Colombani, Mehdi Mejdoubi
PURPOSE: Head-down (HD)-positioning, used in some stroke centers during early ischemic stroke management, is empirical but supported by some physiological findings. It has been shown by nonmagnetic resonance methods that this position can increase cerebral perfusion. This study aimed to investigate magnetic resonance imaging (MRI) ability to measure the response to head-down tilt (HDT) challenge in healthy volunteers. Cerebral blood flow (CBF) was assessed with arterial spin labeling (ASL) in supine and HD (-15°) positions...
December 2016: Journal of Neuroradiology. Journal de Neuroradiologie
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