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Neuroradiology Journal

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https://www.readbyqxmd.com/read/29532712/hydatid-disease-mr-imaging-of-calvarium-and-superior-sagittal-sinus-involvement
#1
Mustafa Kemal Demir, Ozlem Yapıcıer, Teyyub Hasanov, Baran Yılmaz, Türker Kılıç
Extra-axial hydatid disease (HD) is rare and may create a diagnostic challenge. Herein, we report an extremely rare case of calvarial HD with superior sagittal sinus invasion and an extension to the scalp with unusual magnetic resonance imaging findings simulating osteomyelitis and abscess. Recognition of detached endocystic membranes was the most important clue for the correct diagnosis. HD should be included in the differential diagnosis for a patient having a destructive skull lesion with peripheral enhancing extra-axial soft tissue component...
June 2018: Neuroradiology Journal
https://www.readbyqxmd.com/read/29513077/re-treatment-of-residual-aneurysms-after-flow-diversion-an-experimental-study
#2
Robert Fahed, Tim E Darsaut, Marc Kotowski, Igor Salazkin, Jean Raymond
Aim Flow diverters are increasingly used to treat aneurysms, but treatment is not always effective. The management of aneurysms that fail to occlude following flow diversion is problematic. We aimed to reproduce failures in an animal model and study re-treatment with additional flow diverters alone or with flow diverters and liquid embolic agent. Material and methods Twenty wide-necked aneurysms were created at the carotid-lingual bifurcation in 10 dogs, and were treated with flow diverters 4-6 weeks later...
June 2018: Neuroradiology Journal
https://www.readbyqxmd.com/read/29542363/reviewer-thank-you-list-2017
#3
(no author information available yet)
No abstract text is available yet for this article.
April 2018: Neuroradiology Journal
https://www.readbyqxmd.com/read/29417865/advanced-diffusion-weighted-imaging-in-patients-with-optic-neuritis-deficit-value-of-reduced-field-of-view-dwi-and-readout-segmented-dwi
#4
Achim Seeger, Maximilian Schulze, Frank Schuettauf, Ulrike Ernemann, Till-Karsten Hauser
Objective The objective of this article is to evaluate advanced techniques of diffusion-weighted imaging (DWI) and apparent diffusion coefficient (ADC) measurements of the optic nerve in patients with optic neuritis. Methods In this prospective and institutional review board-approved trial, we examined 15 patients with acute visual loss and clinical signs of optic neuritis including thin-slice multi-shot segmented readout of long variable echo trains (rs-EPI, RESOLVE) DWI and reduced field-of view DWI using a parallel transmit system (rFOV-EPI)...
April 2018: Neuroradiology Journal
https://www.readbyqxmd.com/read/29415610/orbital-apex-disorders-imaging-findings-and-management
#5
Pradeep Goyal, Steven Lee, Nishant Gupta, Yogesh Kumar, Manisha Mangla, Kusum Hooda, Shuo Li, Rajiv Mangla
Orbital apex disorders include orbital apex syndrome, superior orbital fissure syndrome and cavernous sinus syndrome. These disorders result from various etiologies, including trauma, neoplastic, developmental, infectious, inflammatory as well as vascular causes. In the past, these have been described separately based on anatomical locations of disease process; however, these three disorders share similar causes, diagnostic evaluation and management strategies. The etiology is diverse and management is directed to the causative process...
April 2018: Neuroradiology Journal
https://www.readbyqxmd.com/read/29400600/cocaine-abuse-longitudinal-mr-imaging-of-lasting-diffused-leukoencephalopathy
#6
Shuo Li, Roni Manyevitch, Kaltrina Sedaliu, Ahmed Abdelbaki, Nishant Gupta, Anil Kumar, Yogesh Kumar, Mark Rosovsky
Cocaine use has been known to cause a number of adverse neurological conditions, such as cerebral ischemia and posterior reversible leukoencephalopathy. The radiologic appearance of cocaine-induced leukoencephalopathy is confounded by a common contaminant, levamisole, which is also known to cause multifocal leukoencephalopathy. However, we encountered a case of diffuse leukoencephalopathy in a patient with cocaine use that had extensive involvement of the cerebral white matter, globus pallidi as well as the cerebellum...
April 2018: Neuroradiology Journal
https://www.readbyqxmd.com/read/29384424/longitudinal-assessment-of-gray-matter-volumes-and-white-matter-integrity-in-patients-with-medication-overuse-headache
#7
Yesim Beckmann, Sevgin Gökçe, Nabi Zorlu, H Sabiha Türe, Fazıl Gelal
Background Medication-overuse headache is a common clinical entity, but neuroimaging studies investigating volumetric and microstructural alterations of the brain in medication-overuse headache are rare. Therefore, in the current longitidunal study we evaluated gray matter volume and white matter integrity in patients with medication-overuse headache before and after drug withdrawal. Methods A prospective study evaluated 27 patients with medication-overuse headache and 27 age-, sex-, and education-matched healthy adults...
April 2018: Neuroradiology Journal
https://www.readbyqxmd.com/read/29350082/quantitative-dti-metrics-in-a-canine-model-of-krabbe-disease-comparisons-versus-age-matched-controls-across-multiple-ages
#8
Jonathan Y Li, Dana M Middleton, Steven Chen, Leonard White, Carley R Corado, Charles Vite, Allison Bradbury, James M Provenzale
Purpose The purpose of this study was to compare quantitative diffusion tensor imaging metrics in dogs affected with a model of Krabbe disease to age-matched normal controls. We hypothesized that fractional anisotropy would be decreased and radial diffusivity would be increased in the Krabbe dogs. Methods We used a highly reproducible region-of-interest interrogation technique to measure fractional anisotropy and radial diffusivity in three different white matter regions within the internal capsule and centrum semiovale in four Krabbe affected brains and three age-matched normal control brains...
April 2018: Neuroradiology Journal
https://www.readbyqxmd.com/read/29300119/single-photon-emission-tomography-imaging-in-patients-with-lyme-disease-treated-with-human-embryonic-stem-cells
#9
Geeta Shroff
Aim The purpose of this study was to evaluate the longitudinal changes in brain perfusion in patients with Lyme disease treated with human embryonic stem cells. Material and methods The study included 59 (age range 41.68 ± 16.37 years) patients with Lyme disease whose single-photon emission tomography imaging was performed before and after the human embryonic stem cell therapy. Technetium-hexa methyl propylene aminoxime single-photon emission tomography imaging was used to assess the hypoperfused lesions/regions in the brain prior to the therapy, as well as the improvement in perfusion after human embryonic stem cell treatment...
April 2018: Neuroradiology Journal
https://www.readbyqxmd.com/read/29260606/diffusion-weighted-imaging-of-normal-appearing-corticospinal-tracts-in-patients-with-multiple-sclerosis
#10
Kadihan Yalçın-Şafak, Ahmet Akça, Özlem Elibol, İrem Sarı
Aim To determine if there are differences in ADC values between normal appearing corticospinal tracks in patients with MS compared to ADC values in controls. Material and methods The study population comprised 62 consecutive MS patients (36 women and 26 men; mean age 36.45±8.63 years). 50 control subjects with no neurological disabilities or intracranial were included the study (32 women and 18 men; mean age 40.18±12.25 years). All ADC maps were independently evaluated by two experienced radiologists. ROI of approximately 15-18 mm2 in capsula interna and 10-12 mm2 in mesencephalon were placed bilaterally for measurement of ADC values...
April 2018: Neuroradiology Journal
https://www.readbyqxmd.com/read/29072554/functional-near-infrared-spectroscopy-is-in-moderate-accordance-with-functional-mri-in-determining-lateralisation-of-frontal-language-areas
#11
K M Arun, K A Smitha, P G Rajesh, Chandrasekharan Kesavadas
Purpose Understanding language dominance is crucial in pre-surgical evaluation of patients with epilepsy and in patients having a tumour close to the language area. Functional magnetic resonance imaging (fMRI) studies are well established in evaluating language dominance. Functional near-infrared spectroscopy (fNIRS) is a non-invasive optical imaging modality that offers a convenient and affordable technique to image language-related cortical areas. This study investigates the agreement between results from task-based fMRI and fNIRS in determining language lateralisation...
April 2018: Neuroradiology Journal
https://www.readbyqxmd.com/read/28990456/cerebrospinal-fluid-spaces-between-intracranial-venous-sinuses-and-overlying-dura-mater-magnetic-resonance-imaging
#12
Satoshi Tsutsumi, Hideo Ono, Yukimasa Yasumoto
Purpose The intracranial venous sinuses are thought to lie interdurally, circumferentially contacting the dura maters. There has been no report documenting the cerebrospinal fluid spaces intervening between the venous sinuses and overlying dura mater. Here, we explored such structures using magnetic resonance imaging. Methods A total of 206 patients underwent magnetic resonance imaging with a T2-weighted or constructive interference steady-state sequence. Imaging data were analysed on a workstation. Results The peri-superior sagittal sinus cerebrospinal fluid spaces were identified in 100% of 133 patients who underwent coronal and sagittal T2-weighted imaging and in 98...
April 2018: Neuroradiology Journal
https://www.readbyqxmd.com/read/28816595/corrigendum
#13
(no author information available yet)
Carlton JA, Maxwell AW, Bauer LB, McElroy SM, Layfield LJ, Ahsan H and Agarwal A. Computed tomography detection of extracapsular spread of squamous cell carcinoma of the head and neck in metastatic cervical lymph nodes. Neuroradiol J 2017; 30: 222-229. (DOI: 10.1177/1971400917694048). The name of the third co-author on page 1 of this article is incorrectly stated as Lyndsey B Bauer. The name has since been corrected on this page to Lindsey B Bauer in the e-only version of the article in the XML. (DOI: 10.1177/1971400917694048)...
April 2018: Neuroradiology Journal
https://www.readbyqxmd.com/read/28735554/magnetic-resonance-imaging-in-central-nervous-system-vasculitis-in-a-patient-affected-by-crioglobulin-negative-hepatitis-c-virus-infection-a-likely-correlation
#14
Silvia Squarza, Alberto Galli, Maurizio Cariati, Federico Alberici, Valentina Bertolini, Fabio Frediani, Carla Uggetti
A 56-year-old man with behavioural disorders and facial-brachio-crural right hemiparesis presented with a brain lesion studied with computed tomography, magnetic resonance imaging and brain biopsy, leading to the diagnosis of cerebral vasculitis. Hepatitis C virus (HCV) infection in a phase of activity, without cryoglobulins, was also detected. Brain biopsy, laboratory analysis and response to a specific therapy supported the diagnosis of central nervous system vasculitis that was HCV related.
April 2018: Neuroradiology Journal
https://www.readbyqxmd.com/read/28730868/intercontinental-validation-of-brain-volume-measurements-using-msmetrix
#15
Alessandro Finkelsztejn, Yara Dadalti Fragoso, Eder Amaral Bastos, Juliana Avila Duarte, Juliana Santos Varela, Ruben Houbrechts, Diana Sima, Wim Van Hecke
Background Brain volume assessment has become an important outcome within research and treatment of multiple sclerosis (MS). MSmetrix (Icometrix) has been developed specifically for patients with MS. The original healthy, 'normal' population used for determination of the acceptable brain volume data consisted mainly of Europeans. Methods In the present study, results from 295 completely normal magnetic resonance imaging scans from Brazilian subjects were plotted against the original results in MSmetrix. Results With regard to whole brain volume, only 2% of the healthy adult subjects from Brazil were below the 5th percentile of the graph, and for grey matter volume, only 3% of the subjects were below the 5th percentile of MSmetrix standards...
April 2018: Neuroradiology Journal
https://www.readbyqxmd.com/read/28650218/bilateral-surgical-damage-of-the-central-tegmental-tract-resulting-in-bilateral-hypertrophic-olivary-degeneration-an-mri-case-report
#16
Silvia Lana, Chiara Ganazzoli, Girolamo Crisi
Hypertrophic olivary degeneration (HOD) is a rare trans-synaptic neuronal degeneration of the inferior olivary nucleus caused by an injury to the dentato-rubro-olivary connection, also known as Guillain-Mollaret triangle. It leads to hypertrophy of the affected nucleus rather than atrophy and is characterized by hyperintensity on T2-weighted images. Unilateral and bilateral cases are described. We present a case of a 70-year-old patient affected by a tumor inside the fourth ventricle who suffered from diplopia and right seventh cranial nerve palsy...
April 2018: Neuroradiology Journal
https://www.readbyqxmd.com/read/28644112/susac-syndrome-misdiagnosed-as-multiple-sclerosis-with-exacerbation-by-interferon-beta-therapy
#17
Hussein Algahtani, Bader Shirah, Muhammad Amin, Eyad Altarazi, Hashem Almarzouki
Susac syndrome is a rare autoimmune disorder characterised by the clinical triad of encephalopathy, retinopathy (branch retinal artery occlusions) and hearing loss. The diagnosis of Susac syndrome may be difficult initially, and it is not uncommon for patients with Susac syndrome to be misdiagnosed with multiple sclerosis. In this case report, we describe a patient who was diagnosed as having multiple sclerosis for three years, with further deterioration after starting treatment with interferon beta-1a. The patient had the triad of encephalopathy, branch retinal artery occlusions and sensorineural hearing loss...
April 2018: Neuroradiology Journal
https://www.readbyqxmd.com/read/28635494/urea-cycle-disorder-misdiagnosed-as-multiple-sclerosis-a-case-report-and-review-of-the-literature
#18
Hussein Algahtani, Seham Alameer, Yousef Marzouk, Bader Shirah
Urea cycle disorders are a group of inborn errors of metabolism caused by dysfunction of any of the six enzymes or two transport proteins involved in urea biosynthesis. In this paper, we report a patient who presented with neurological dysfunction and coma in the immediate postpartum period. She was misdiagnosed for many years as a case of multiple sclerosis. The importance of reporting this case is to illustrate that the wrong diagnosis of patients as being affected with multiple sclerosis for many years due to magnetic resonance imaging abnormalities rather than the classic relapsing-remitting nature of the disease may lead to catastrophic consequences...
April 2018: Neuroradiology Journal
https://www.readbyqxmd.com/read/28627955/herpes-simplex-encephalitis-with-thalamic-brainstem-and-cerebellar-involvement
#19
Meenal Garg, Shilpa Kulkarni, Anaita Udwadia Hegde
Herpes simplex virus encephalitis is a common and treatable cause of acute encephalitis in all age groups. Certain radiological features such as temporal parenchymal involvement facilitate the diagnosis. The use of herpes simplex virus polymerase chain reaction has expanded the clinical and imaging spectrum. We report the case of a young patient who presented with a movement disorder and predominant involvement of thalami, brainstem and cerebellum on magnetic resonance imaging, and was diagnosed with herpes simplex virus encephalitis...
April 2018: Neuroradiology Journal
https://www.readbyqxmd.com/read/28423973/neurological-involvement-of-igg4-related-disease-description-of-a-case-and-review-of-the-literature
#20
Marco Varrassi, Camilla Gianneramo, Francesco Arrigoni, Paolo Cerrone, Patrizia Sucapane, Carmine Marini, Alessandra Splendiani
IgG4-related disease is a recently discovered pathological entity, histologically characterised by fibrosis and IgG4-positive plasma cell infiltration. This condition may virtually involve every site of the organism, with a various range of clinical presentations. The most commonly affected organ is the pancreatic gland, but it can also involve the biliary tract, salivary and lacrimal glands, kidneys, orbital tissues, lymph nodes, lungs and many others. More recently, IgG4-related disease has been demonstrated to involve, in rare cases, also the central nervous system, with a pattern mainly characterised by hypertrophic pachymeningitis...
April 2018: Neuroradiology Journal
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