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Neuroradiology

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https://www.readbyqxmd.com/read/27913820/cerebral-blood-flow-transit-time-and-apparent-diffusion-coefficient-in-moyamoya-disease-before-and-after-acetazolamide
#1
Christian Federau, Soren Christensen, Zungho Zun, Sun-Won Park, Wendy Ni, Michael Moseley, Greg Zaharchuk
INTRODUCTION: The goal of this study was to assess the changes in arterial spin labeling (ASL) cerebral blood flow (CBF) and arterial transit time (ATT), and in apparent diffusion coefficient (ADC), before and after an acetazolamide challenge in moyamoya patients, as function of arterial stenosis severity. METHODS: Pre-operative patients diagnosed with moyamoya disease who could undergo MRI at 3.0T were recruited for this study. A multi-delay pseudo-continuous ASL and a diffusion-weighted sequence were acquired before and 15 min after acetazolamide injection...
December 2, 2016: Neuroradiology
https://www.readbyqxmd.com/read/27913819/erratum-to-38-th-european-society-of-neuroradiology-diagnostic-and-interventional-annual-meeting
#2
Guido Wilms, Majda Thurnher
No abstract text is available yet for this article.
December 2, 2016: Neuroradiology
https://www.readbyqxmd.com/read/27889838/changes-of-brain-metabolite-concentrations-during-maturation-in-different-brain-regions-measured-by-chemical-shift-imaging
#3
Eva Bültmann, Thomas Nägele, Heinrich Lanfermann, Uwe Klose
INTRODUCTION: We examined the effect of maturation on the regional distribution of brain metabolite concentrations using multivoxel chemical shift imaging. METHODS: From our pool of pediatric MRI examinations, we retrospectively selected patients showing a normal cerebral MRI scan or no pathologic signal abnormalities at the level of the two-dimensional 1H MRS-CSI sequence and an age-appropriate global neurological development, except for focal neurological deficits...
November 26, 2016: Neuroradiology
https://www.readbyqxmd.com/read/27889837/exercise-training-effects-on-memory-and-hippocampal-viscoelasticity-in-multiple-sclerosis-a-novel-application-of-magnetic-resonance-elastography
#4
Brian M Sandroff, Curtis L Johnson, Robert W Motl
INTRODUCTION: Cognitive impairment is common and debilitating among persons with multiple sclerosis (MS) and might be managed with exercise training. However, the effects of exercise training on viscoelastic brain properties in this population are unknown. The present pilot study adopted a single-blind randomized controlled trial (RCT) design and is the first to examine the effect of an aerobic exercise training intervention on learning and memory and hippocampal viscoelasticity using magnetic resonance elastography (MRE) in persons with MS...
November 26, 2016: Neuroradiology
https://www.readbyqxmd.com/read/27889836/clinical-validation-of-synthetic-brain-mri-in-children-initial-experience
#5
Hollie West, James L Leach, Blaise V Jones, Marguerite Care, Rupa Radhakrishnan, Arnold C Merrow, Enrique Alvarado, Suraj D Serai
INTRODUCTION: The purpose of this study was to determine the diagnostic accuracy of synthetic MR sequences generated through post-acquisition processing of a single sequence measuring inherent R1, R2, and PD tissue properties compared with sequences acquired conventionally as part of a routine clinical pediatric brain MR exam. METHODS: Thirty-two patients underwent routine clinical brain MRI with conventional and synthetic sequences acquired (22 abnormal). Synthetic axial T1, T2, and T2 fluid attenuation inversion recovery or proton density-weighted sequences were made to match the comparable clinical sequences...
November 26, 2016: Neuroradiology
https://www.readbyqxmd.com/read/27844093/fractional-anisotropy-and-diffusivity-changes-in-thyroid-associated-orbitopathy
#6
Ji Sung Han, Hyung Suk Seo, Young Hen Lee, Hwa Lee, Sang-Il Suh, Eun-Kee Jeong, Nabraj Sapkota, Ki Joon Kim
INTRODUCTION: To investigate the extraocular muscle (EOM) changes in thyroid-associated orbitopathy (TAO) on DTI and the correlations between DTI parameters and clinical features. METHODS: Twenty TAO patients and 20 age- and sex-matched controls provided informed consent and were enrolled. Ten-directional DTI was acquired in orbit. Fractional anisotropy (FA), mean, axial, and radial diffusivities were obtained at medial and lateral EOMs in both orbits. EOM thickness was measured in patients using axial CT images...
November 14, 2016: Neuroradiology
https://www.readbyqxmd.com/read/27826668/editorial-founding-members-of-the-esnr
#7
EDITORIAL
Guido Wilms, Majda Thurnher
No abstract text is available yet for this article.
November 8, 2016: Neuroradiology
https://www.readbyqxmd.com/read/27826667/is-advanced-neuroimaging-for-neuroradiologists-a-systematic-review-of-the-scientific-literature-of-the-last-decade
#8
Sirio Cocozza, Camilla Russo, Giuseppe Pontillo, Lorenzo Ugga, Antonio Macera, Amedeo Cervo, Maria De Liso, Nilde Di Paolo, Maria Isabella Ginocchio, Flavio Giordano, Giuseppe Leone, Giovanni Rusconi, Arnaldo Stanzione, Francesco Briganti, Mario Quarantelli, Ferdinando Caranci, Alessandra D'Amico, Andrea Elefante, Enrico Tedeschi, Arturo Brunetti
INTRODUCTION: To evaluate if advanced neuroimaging research is mainly conducted by imaging specialists, we investigated the number of first authorships by radiologists and non-radiologist scientists in articles published in the field of advanced neuroimaging in the past 10 years. METHODS: Articles in the field of advanced neuroimaging identified in this retrospective bibliometric analysis were divided in four groups, depending on the imaging technique used. For all included studies, educational background of the first authors was recorded (based on available online curriculum vitae) and classified in subgroups, depending on their specialty...
November 8, 2016: Neuroradiology
https://www.readbyqxmd.com/read/27796449/endovascular-treatment-of-carotico-cavernous-fistulas-with-acrylic-glue-a-series-of-nine-cases
#9
Marcus Ohlsson, Arturo Consoli, Georges Rodesch
INTRODUCTION: Injuries to the internal carotid artery close to the cavernous sinus may result in a fistulous connection between the artery and the venous sinus. Symptoms include pulsatile tinnitus, intracranial bruit, ophthalmological symptoms, and risk of intracerebral hematoma in cases of cortical venous reflux. Previous treatment strategies have included detachable latex balloons, coils, covered stents, or combinations thereof. Today, detachable latex balloons are phased out or withdrawn from several markets...
October 29, 2016: Neuroradiology
https://www.readbyqxmd.com/read/27796448/assessment-of-tissue-heterogeneity-using-diffusion-tensor-and-diffusion-kurtosis-imaging-for-grading-gliomas
#10
Rajikha Raja, Neelam Sinha, Jitender Saini, Anita Mahadevan, Kvl Narasinga Rao, Aarthi Swaminathan
INTRODUCTION: In this work, we aim to assess the significance of diffusion tensor imaging (DTI) and diffusion kurtosis imaging (DKI) parameters in grading gliomas. METHODS: Retrospective studies were performed on 53 subjects with gliomas belonging to WHO grade II (n = 19), grade III (n = 20) and grade IV (n = 14). Expert marked regions of interest (ROIs) covering the tumour on T2-weighted images. Statistical texture measures such as entropy and busyness calculated over ROIs on diffusion parametric maps were used to assess the tumour heterogeneity...
October 29, 2016: Neuroradiology
https://www.readbyqxmd.com/read/27796447/endovascular-treatment-of-acute-internal-carotid-artery-dissections-technical-considerations-clinical-and-angiographic-outcome
#11
Wiebke Kurre, Kai Bansemir, Marta Aguilar Pérez, Rosa Martinez Moreno, Elisabeth Schmid, Hansjörg Bäzner, Hans Henkes
INTRODUCTION: In acute internal carotid artery dissection (a-ICAD) with concomitant intracranial large vessel occlusion or haemodynamic impairment, the effectiveness of medical treatment is limited and endovascular therapy (EVT) can be considered. Feasibility, safety and outcome of EVT in a-ICAD are not well described yet. METHODS: From an institutional database, we retrospectively selected consecutive patients treated for a-ICAD between January 2007 and July 2015...
October 29, 2016: Neuroradiology
https://www.readbyqxmd.com/read/27796446/prognostic-value-of-preoperative-dynamic-contrast-enhanced-mri-perfusion-parameters-for-high-grade-glioma-patients
#12
Agne Ulyte, Vasileios K Katsaros, Evangelia Liouta, Georgios Stranjalis, Christos Boskos, Nickolas Papanikolaou, Jurgita Usinskiene, Sotirios Bisdas
INTRODUCTION: The prognostic value of the dynamic contrast-enhanced (DCE) MRI perfusion and its histogram analysis-derived metrics is not well established for high-grade glioma (HGG) patients. The aim of this prospective study was to investigate DCE perfusion transfer coefficient (K(trans)), vascular plasma volume fraction (vp), extracellular volume fraction (ve), reverse transfer constant (kep), and initial area under gadolinium concentration time curve (IAUGC) as predictors of progression-free (PFS) and overall survival (OS) in HGG patients...
October 29, 2016: Neuroradiology
https://www.readbyqxmd.com/read/27783100/micro-structural-white-matter-abnormalities-in-type-2-diabetic-patients-a-dti-study-using-tbss-analysis
#13
Xin Tan, Peng Fang, Jie An, Huan Lin, Yi Liang, Wen Shen, Xi Leng, Chi Zhang, Yanting Zheng, Shijun Qiu
INTRODUCTION: Patients with type 2 diabetes mellitus (T2DM) have usually been found cognitive impairment associated with brain white matter (WM) abnormalities. However, findings have varied across studies, and any potential relationship with Alzheimer's disease (AD) remains unclear. The aim of this study was to assess the whole-brain WM integrity of T2DM patients and to compare our findings with those of published AD cases. METHODS: In this study, we used diffusion tensor imaging (DTI) combined with tract-based spatial statistics (TBSS) to investigate whole-brain WM abnormalities in 48 T2DM patients and 48 healthy controls...
October 25, 2016: Neuroradiology
https://www.readbyqxmd.com/read/27783099/mri-of-the-pituitary-gland-by-jean-fran%C3%A3-ois-bonneville-fabrice-bonneville-fran%C3%A3-oise-cattin-sonia-nagi-springer-verlag-berlin-heidelberg-new-york-tokyo-ebook-isbn-978-3-319-29043-0-hb-isbn-978-3-319-29041-6-price-ebook-139-%C3%A2-130-89-hb-179-%C3%A2-166-41-eb-hb-397
#14
https://www.readbyqxmd.com/read/27730301/european-society-of-neuroradiology-esnr
#15
(no author information available yet)
No abstract text is available yet for this article.
October 11, 2016: Neuroradiology
https://www.readbyqxmd.com/read/27704163/incidental-ferumoxytol-artifacts-in-clinical-brain-mr-imaging
#16
Bruce A Bowser, Norbert G Campeau, Carrie M Carr, Felix E Diehn, Jennifer S McDonald, Gary M Miller, Timothy J Kaufmann
INTRODUCTION: Ferumoxytol (Feraheme) is a parenteral therapy approved for treatment of iron deficiency anemia. The product insert for ferumoxytol states that it may affect the diagnostic ability of MRI for up to 3 months. However, the expected effects may not be commonly recognized among clinical neuroradiologists. Our purpose is to describe the artifacts we have seen at our institution during routine clinical practice. METHODS: We reviewed the patients at our institution that had brain MRI performed within 90 days of receiving intravenous ferumoxytol...
October 4, 2016: Neuroradiology
https://www.readbyqxmd.com/read/27614629/anterior-disco-osteo-arterial-conflict-as-a-cause-of-intersegmental-arterial-flow-impairment-and-spinal-cord-ischemia
#17
Natalie Ullman, Lydia Gregg, Daniel Becker, Carlos Pardo, Philippe Gailloud
INTRODUCTION: This article describes anterior disco-osteo-arterial conflict as an insofar unsuspected mechanism of arterial flow impairment potentially leading to spinal cord ischemia and infarction. METHODS: The anterior disco-osteo-arterial conflict described in this report is illustrated with angiographic observations of patients presenting with spinal cord ischemia documented by MRI, and radiculomedullary flow impairment diagnosed by spinal digital subtraction angiography and spinal CTA...
September 10, 2016: Neuroradiology
https://www.readbyqxmd.com/read/27844128/european-society-of-neuroradiology-esnr
#18
(no author information available yet)
No abstract text is available yet for this article.
November 2016: Neuroradiology
https://www.readbyqxmd.com/read/27757517/safety-and-efficacy-of-antiplatelet-response-assay-and-drug-adjustment-in-coil-embolization-a-propensity-score-analysis
#19
Min Soo Kim, Kyung Il Jo, Je Young Yeon, Jong Soo Kim, Keon Ha Kim, Pyoung Jeon, Seung Chyul Hong
INTRODUCTION: The purpose of this study was to explore the safety and efficacy of an antiplatelet response assay and drug adjustment to prevent delayed thromboembolic events after stent-assisted coil embolization. METHODS: A total of 370 patients were enrolled in this study between December 2005 and July 2014. Of these, 124 patients were placed into the drug resistance test (DRT) group with drug adjustment according to response to an antiplatelet agent, and 246 patients comprised the control group with a standard antiplatelet regimen...
November 2016: Neuroradiology
https://www.readbyqxmd.com/read/27651328/diagnostic-accuracy-of-whole-brain-ct-perfusion-in-the-detection-of-acute-infratentorial-infarctions
#20
Christine Bollwein, Annika Plate, Wieland H Sommer, Kolja M Thierfelder, Hendrik Janssen, Maximilian F Reiser, Andreas Straube, Louisa von Baumgarten
INTRODUCTION: Although the diagnostic performance of whole-brain computed tomographic perfusion (WB-CTP) in the detection of supratentorial infarctions is well established, its value in the detection of infratentorial strokes remains less well defined. We examined its diagnostic accuracy in the detection of infratentorial infarctions and compared it to nonenhanced computed tomography (NECT), aiming to identify factors influencing its detection rate. METHODS: Out of a cohort of 1380 patients who underwent WB-CTP due to suspected stroke, we retrospectively included all patients with MRI-confirmed infratentorial strokes and compared it to control patients without infratentorial strokes...
November 2016: Neuroradiology
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