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Journal of Neuroradiology. Journal de Neuroradiologie

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https://www.readbyqxmd.com/read/28733023/erratum-to-endovascular-thrombectomy-and-medical-therapy-versus-medical-therapy-alone-in-acute-stroke-a-randomized-care-trial-j-neuroradiol-44-2017-198-202
#1
Naim N Khoury, Tim E Darsaut, Jimmy Ghostine, Yan Deschaintre, Nicole Daneault, André Durocher, Sylvain Lanthier, Alexandre Y Poppe, Céline Odier, Louise-Hélène Lebrun, François Guilbert, Jean-Christophe Gentric, André Batista, Alain Weill, Daniel Roy, Serge Bracard, Jean Raymond
No abstract text is available yet for this article.
July 18, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28709707/endovascular-treatment-of-acute-ischemic-stroke-with-eric-device
#2
Laurent Pierot, Jean-Yves Gauvrit, Vincent Costalat, Michel Piotin, Charbel Mounayer, Denis Herbreteau, Sophie Gallas, René Anxionnat, Hubert Desal
BACKGROUND AND PURPOSE: After 6 positive randomized trials, mechanical thrombectomy with stent-retriever is now recommended as a first-line treatment for acute ischemic stroke (AIS). The ERIC device is a device with several interlinked cage-like spheres fixed on a pusher wire. Neurothrombectomy France (NTF) is a registry conducted in France to analyze the results of mechanical thrombectomy. In order to analyze its performances, the subgroup of patients treated with the ERIC device was analyzed...
July 11, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28689601/imaging-features-of-intracranial-psammomatous-meningioma
#3
L Liu, Y Lu, W Peng, D Geng, J Wen, J Xiong, L Zou, B Yin
PURPOSE: This study was conducted to describe the imaging features of intracranial psammomatous meningioma (IPM). MATERIALS AND METHODS: Twenty-three patients with a histopathological diagnosis of IPM between January 2007 and August 2016 were retrospectively reviewed. Twenty-two patients underwent contrast-enhanced MRI scanning, and 16 underwent non-enhanced CT. RESULTS: A total of 23 adult patients (3 men, 20 women; mean age, 55.3±7.0 years) with 30 IPMs, including 3 patients with multiple IPMs, were recruited...
July 6, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28687123/dynamics-of-cerebral-perfusion-deficits-after-aneurysmal-sah%C3%A2-%C3%A2-predictive-value-of-early-mtt-for-subsequent-mtt-deterioration
#4
Christian Rubbert, Julian Caspers, Athanasios Konstandinou Petridis, Bernd Turowski, Rebecca May
BACKGROUND AND PURPOSE: The pathogenesis of poor functional outcome after aneurysmal subarachnoid hemorrhage (aSAH) is not fully understood. Microcirculatory dysfunction, which can be indirectly measured by CT perfusion (CTP), is assumed to play a central role. We evaluated the predictive value of early changes in microcirculation for secondary critical perfusion changes. MATERIALS AND METHODS: Out of 351 consecutive aSAH patients, 166 patients with ≥1 CTP within 72h of ictus (early CTP) and ≥3 CTPs in total were included in the retrospective analysis (53...
July 4, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28687122/evaluation-of-ex-vivo-9-4t-mri-in-post-surgical-specimens-from-temporal-lobe-epilepsy-patients
#5
Benjamin Y M Kwan, Fateme Salehi, Ryan Kope, Donald H Lee, Manas Sharma, Robert Hammond, Jorge G Burneo, David Steven, Terry Peters, Ali R Khan
PURPOSE: This study evaluates hippocampal pathology through usage of ultra-high field 9.4T ex-vivo imaging of resected surgical specimens in patients who have undergone temporal lobe epilepsy surgery. METHOD AND MATERIALS: This is a retrospective interpretation of prospectively acquired data. MRI scanning of resected surgical specimens from patients who have undergone temporal lobe epilepsy surgery was performed on a 9.4T small bore Varian MR magnet. Structural images employed a balanced steady-state free precession sequence (TrueFISP)...
July 4, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28676345/a-six-month-longitudinal-evaluation-significantly-improves-accuracy-of-predicting-incipient-alzheimer-s-disease-in-mild-cognitive-impairment
#6
Asim M Mubeen, Ali Asaei, Alvin H Bachman, John J Sidtis, Babak A Ardekani
RATIONALE AND OBJECTIVES: Early prediction of incipient Alzheimer's disease (AD) dementia in individuals with mild cognitive impairment (MCI) is important for timely therapeutic intervention and identifying participants for clinical trials at greater risk of developing AD. Methods to predict incipient AD in MCI have mostly utilized cross-sectional data. Longitudinal data enables estimation of the rate of change of variables, which along with the variable levels have been shown to improve prediction power...
July 1, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28673676/detection-of-cholesteatoma-high-resolution-dwi-using-rs-epi-and-parallel-imaging-at-3-tesla
#7
O Algin, H Aydın, E Ozmen, G Ocakoglu, S Bercin, D A Porter, A Kutluhan
The purpose of this study is to evaluate the impact of RS-EPI-DWI in the detection of cholesteatoma and to compare with single-shot echo-planar DWI (SS-EPI-DWI). Diffusion-weighted and apparent diffusion-coefficient (ADC) images were obtained using RS-EPI and SS-EPI techniques in 30 patients. Presence of cholesteatoma (3 point scale), amount of artefacts (4 point scale), visibility (4 point scale), and ADC values of the lesions were assessed. The results of both techniques were compared with each other and gold-standard (GS) test results...
June 30, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28669534/influence-of-inversion-time-on-endolymphatic-hydrops-evaluation-in-3d-flair-imaging
#8
Michael Eliezer, André Gillibert, Irène Tropres, Alexandre Krainik, Arnaud Attyé
The MRI evaluation of endolymphatic hydrops currently relies on inversion recovery sequences. Signal intensity of such sequences depends on the Inversion Time (TI) parameter. Here, we assessed endolymphatic compartment variation with two 3D-FLAIR sequences, closely similar except for the TI (2300 and 2400ms), in healthy volunteers and patients. We found that the semi-quantitative method of grading was highly dependent on the TI, contrasting with the recently proposed saccular-based grading of endolymphatic hydrops...
June 29, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28641922/diffusion-weighted-imaging-and-time-in-acute-ischemic-stroke-is-there-any-relation
#9
Daniel Mantilla-García, Isabelle Mourand, Gregory Gascou, Carlos Riquelme, Cyril Dargazanli, Patricio López-Jaramillo, Paul A Camacho, Omer Eker, Alain Bonafé, Vincent Costalat
BACKGROUND AND PURPOSE: Diffusion-weighted MRI (DWI) is useful for patient selection during the first 6hours after stroke onset. The main aim of this study was to investigate the relationship between the time from stroke symptom onset and stroke volume assessed using DWI. MATERIALS AND METHODS: We evaluated 203 patients with anterior circulation stroke who were admitted to Montpellier's Stroke Unit and for whom a DWI ASPECT score (DWI-ASPECTS) was obtained during the first 6hours from symptom onset...
June 19, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28602499/susceptibility-weighted-angiography-and-diffusion-weighted-imaging-in-posterior-reversible-encephalopathy-syndrome-is-there-an-association-between-hemorrhage-cytotoxic-edema-blood-pressure-and-imaging-severity
#10
Shivaprakash Basavanthaiah Hiremath, Amol Anantrao Gautam, Shilpa Anil, Reji Thomas, Geena Benjamin
PURPOSE: To assess the significance of association and possible correlation between hemorrhage, cytotoxic edema, blood pressure and imaging severity in posterior reversible encephalopathy syndrome (PRES). MATERIALS AND METHODS: This retrospective study included the medical and imaging records of 35 consecutive patients with PRES. The clinical data analysis included the highest recorded blood pressure (BP) on the day of the ictus, MRI including spin-echo echo planar diffusion-weighted imaging (DWI), susceptibility weighted angiography (SWAN) and conventional sequences...
June 8, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28602498/risk-factors-for-angiographic-recurrence-after-treatment-of-unruptured-intracranial-aneurysms-outcomes-from-a-series-of-178-unruptured-aneurysms-treated-by-regular-coiling-or-surgery
#11
REVIEW
Anne-Laure Bernat, Frédéric Clarençon, Arthur André, Aurélien Nouet, Stéphane Clémenceau, Nader-Antoine Sourour, Federico Di Maria, Vincent Degos, Jean-Louis Golmard, Philippe Cornu, Anne-Laure Boch
BACKGROUND: Long-term stability after intracranial aneurysm exclusion by coiling is still a matter of debate; after surgical clipping little is known. OBJECTIVE: To study outcome after endovascular and surgical treatments for unruptured intracranial aneurysms in terms of short- and long-term angiographic exclusion and risk factors for recanalization. METHODS: From 2004 and 2009, patients treated for unruptured berry intracranial aneurysms by coiling or clipping were reviewed...
June 8, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28602497/anatomical-localization-of-the-cavernous-sinus-dural-fistula-by-3d-rotational-angiography-with-emphasis-on-clinical-and-therapeutic-implications
#12
Santhosh Kumar Kannath, Jayadevan Enakshy Rajan, Sankara P Sarma
BACKGROUND AND PURPOSE: Carotid cavernous sinus dural arteriovenous fistulas (CSDAVFs) are presumed to be located within the walls of the cavernous sinus, however the exact fistulous site has not yet been studied by angiographic or anatomical methods. The present study aimed to localize CSDAVFs with the help of 3D rotational angiography (RA) and correlated the observations with clinical and angiographic findings. MATERIALS AND METHODS: The CSDAVFs were categorized as dural, extradural or osseous based on the site of convergence of feeders into the venous sac...
June 8, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28579039/total-mismatch-of-diffusion-weighted-imaging-and-susceptibility-weighted-imaging-in-patients-with-acute-cerebral-ischemia
#13
Min-Gyu Park, Jeong A Yeom, Seung Kug Baik, Kyung-Pil Park
BACKGROUND AND PURPOSE: Multiple hypointense vessels (MHV) on susceptibility-weighted imaging (SWI) is associated with an increased oxygen demand in acute cerebral ischemia. Occasionally, some patients exhibit extensive MHV on SWI despite of negative diffusion-weighted imaging (DWI), which is a phenomenon called total mismatch DWI-SWI. We analyzed the clinical characteristics and imaging findings in patients with the total DWI-SWI mismatch. MATERIALS AND METHODS: We selected patients with total DWI-SWI mismatch who underwent MRI within 12hours from onset...
May 31, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28551022/the-relationship-between-post-traumatic-ossicular-injuries-and-conductive-hearing-loss-a-3d-ct-study
#14
Olivier Maillot, Arnaud Attyé, Claire Boutet, Kamel Boubagra, Romain Perolat, Marion Zanolla, Sylvie Grand, Sébastien Schmerber, Alexandre Krainik
PURPOSE: After a trauma, the conductive ossicular chain may be disrupted by ossicular luxation or fracture. Recent developments in 3D-CT allow a better understanding of ossicular injuries. In this retrospective study, we compared patients with post-traumatic conductive hearing loss (CHL) with those referred without CHL to evaluate the relationship between ossicular injuries and CHL. We also assessed the added value of 3D reconstructions on 2D-CT scan to detect ossicular lesions in patients surgically managed...
May 24, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28478114/mri-quantitative-t2-mapping-on-thrombus-to-predict-recanalization-after-endovascular-treatment-for-acute-anterior-ischemic-stroke
#15
R Bourcier, N Brecheteau, V Costalat, B Daumas-Duport, B Guyomarch-Delasalle, H Desal, O Naggara, J M Serfaty
BACKGROUND: In anterior acute ischemic stroke (AAIS) treated with endovascular treatment (EVT), the susceptibility vessel sign (SVS+ or SVS-) is related to recanalization results (TICI 2b/3) and clinical outcome. However, a binary qualitative assessment of thrombus using SVS does not reflect its complex composition. Our aim was to assess whether a quantitative MRI marker, Thrombus-T2* relaxation time, may be assessable in clinical routine and may to predict early successful recanalization after EVT, defined as a TICI 2b/3 recanalization obtained in 2 attempts or less...
May 3, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28478113/randomize-the-first-patient
#16
Jean Raymond, Robert Fahed, Tim E Darsaut
BACKGROUND: When to proceed with a randomized trial (RCT) that tests the merits of innovative treatments has been controversial. Tom Chalmers proposed that we should randomize the first patient. METHODS: We examine various scenarios and compare hypothetical results of early and delayed RCTs and case series. Then we review potential reasons why Chalmers' idea has not yet been widely applied. RESULTS: Case series of innovative treatments followed by delayed RCTs put many more patients at risk of a poor outcome...
May 3, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28478112/a-computational-fluid-dynamics-cfd-study-of-web-treated-aneurysms-can-cfd-predict-web-compression-during-follow-up
#17
Jildaz Caroff, Cristian Mihalea, Valerio Da Ros, Takanobu Yagi, Marta Iacobucci, Léon Ikka, Jacques Moret, Laurent Spelle
BACKGROUND: Recent reports have revealed a worsening of aneurysm occlusion between WEB treatment baseline and angiographic follow-up due to "compression" of the device. OBJECTIVE: We utilized computational fluid dynamics (CFD) in order to determine whether the underlying mechanism of this worsening is flow related. METHODS: We included data from all consecutive patients treated in our institution with a WEB for unruptured aneurysms located either at the middle cerebral artery or basilar tip...
May 3, 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
#18
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°...
July 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
#19
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...
July 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
#20
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...
June 2017: Journal of Neuroradiology. Journal de Neuroradiologie
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