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https://www.readbyqxmd.com/read/29773567/balanced-steady-state-free-precession-sequence-ciss-fiesta-3d-driven-equilibrium-radiofrequency-reset-pulse-increases-the-diagnostic-yield-for-spinal-drop-metastases-in-children-with-brain-tumors
#1
K Buch, P Caruso, D Ebb, S Rincon
BACKGROUND AND PURPOSE: Identification of spinal drop metastases is important in the staging and management of pediatric patients with primary brain tumors. Our aim was to assess the diagnostic utility of the balanced steady-state free precession (bSSFP) sequence (CISS/FIESTA/3D driven equilibrium radiofrequency reset pulse) for the detection of spinal drop metastases in pediatric patients with primary intracranial tumors. MATERIALS AND METHODS: This was a retrospective study of 44 pediatric patients with primary intracranial tumors undergoing MR imaging spine evaluation for drop metastases before radiation treatment...
May 17, 2018: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29772320/predictive-factors-of-silent-brain-infarcts-after-asymptomatic-carotid-endarteriectomy
#2
Rémy Pascot, Benjamin Parat, Yann Le Teurnier, Gilles Godet, Jean-Yves Gauvrit, Yann Gouëffic, Eric Steinmetz, Alain Cardon, Adrien Kaladji
BACKGROUND: The optimization of medical treatment regularly challenges the role of carotid surgery for asymptomatic patients. Current research seeks to determine which of these patients will benefit most from surgery. The goal of this study was to identify in a multi-center study, using MRI, the risk factors for postoperative silent cerebral ischemic lesions after carotid surgery for asymptomatic stenosis METHODS: The multicenter, retrospective study included patients with asymptomatic severe carotid stenosis suitable for surgical treatment and who did not have a history of cerebral ischemia...
May 14, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29764386/parkinson-s-disease-diagnostic-observations-paddo-study-rationale-and-design-of-a-prospective-cohort-study-for-early-differentiation-of-parkinsonism
#3
Anouke van Rumund, Marjolein B Aerts, Rianne A J Esselink, Frederick J A Meijer, Marcel M Verbeek, Bastiaan R Bloem
BACKGROUND: Differentiation of Parkinson's disease (PD) from the various types of atypical parkinsonism (AP) such as multiple system atrophy (MSA), progressive supranuclear palsy (PSP), dementia with Lewy bodies (DLB), corticobasal syndrome (CBS) and vascular parkinsonism (VP), can be challenging, especially early in the disease course when symptoms overlap. A major unmet need in the diagnostic workup of these disorders is a diagnostic tool that differentiates the various disorders, preferably in the earliest disease stages when the clinical presentation is similar...
May 16, 2018: BMC Neurology
https://www.readbyqxmd.com/read/29757724/neuroimaging-findings-of-organic-acidemias-and-aminoacidopathies
#4
Nihaal Reddy, Sonia F Calloni, Hilary J Vernon, Eugen Boltshauser, Thierry A G M Huisman, Bruno P Soares
Although individual cases of inherited metabolic disorders are rare, overall they account for a substantial number of disorders affecting the central nervous system. Organic acidemias and aminoacidopathies include a variety of inborn errors of metabolism that are caused by defects in the intermediary metabolic pathways of carbohydrates, amino acids, and fatty acid oxidation. These defects can lead to the abnormal accumulation of organic acids and amino acids in multiple organs, including the brain. Early diagnosis is mandatory to initiate therapy and prevent permanent long-term neurologic impairments or death...
May 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29749883/rapid-sequence-brain-magnetic-resonance-imaging-for-chiari-i-abnormality
#5
James Pan, Jennifer L Quon, Eli Johnson, Bryan Lanzman, Anjeza Chukus, Allen L Ho, Michael S B Edwards, Gerald A Grant, Kristen W Yeom
OBJECTIVE Fast magnetic resonance imaging (fsMRI) sequences are single-shot spin echo images with fast acquisition times that have replaced CT scans for many conditions. Introduced as a means of evaluating children with hydrocephalus and macrocephaly, these sequences reduce the need for anesthesia and can be more cost-effective, especially for children who require multiple surveillance scans. However, the role of fsMRI has yet to be investigated in evaluating the posterior fossa in patients with Chiari I abnormality (CM-I)...
May 11, 2018: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29738390/incidence-and-risk-factors-for-sigmoid-venous-thrombosis-following-cpa-tumor-resection
#6
Matthew Shew, Hannah Kavookjian, Kelly Dahlstrom, Thomas Muelleman, James Lin, Paul Camarata, Luke N Ledbetter, Hinrich Staecker
OBJECTIVE: Our primary aim was to determine the incidence of sigmoid venous thrombosis (SVT) and determine risks factors and sequelae of SVT following cerebellopontine angle tumor resection. STUDY DESIGN: Retrospective cohort study. SETTING: Academic tertiary care hospital. PATIENTS: Patients over 18 years of age who underwent resection of cerebellopontine angle meningioma or vestibular schwannoma from January 2005 to April 2016 who had postoperative magnetic resonance imaging...
June 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29724765/imaging-differences-between-neuromyelitis-optica-spectrum-disorders-and-multiple-sclerosis-a-multi-institutional-study-in-japan
#7
H Tatekawa, S Sakamoto, M Hori, Y Kaichi, A Kunimatsu, K Akazawa, T Miyasaka, H Oba, T Okubo, K Hasuo, K Yamada, T Taoka, S Doishita, T Shimono, Y Miki
BACKGROUND AND PURPOSE: Both clinical and imaging criteria must be met to diagnose neuromyelitis optica spectrum disorders and multiple sclerosis. However, neuromyelitis optica spectrum disorders are often misdiagnosed as MS because of an overlap in MR imaging features. The purpose of this study was to confirm imaging differences between neuromyelitis optica spectrum disorders and MS with visually detailed quantitative analyses of large-sample data. MATERIALS AND METHODS: We retrospectively examined 89 consecutive patients with neuromyelitis optica spectrum disorders (median age, 51 years; range, 16-85 years; females, 77; aquaporin 4 immunoglobulin G-positive, 93%) and 89 with MS (median age, 36 years; range, 18-67 years; females, 68; relapsing-remitting MS, 89%; primary-progressive MS, 7%; secondary-progressive MS, 2%) from 9 institutions across Japan (April 2008 to December 2012)...
May 3, 2018: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29719858/imaging-features-of-neurotoxoplasmosis-a-multiparametric-approach-with-emphasis-on-susceptibility-weighted-imaging
#8
John C Benson, Gustavo Cervantes, Thomas R Baron, Andrew E Tyan, Siobhan Flanagan, Leandro T Lucato, Alexander M McKinney, Frederick Ott
Background: Neurotoxoplasmosis is a common opportunistic infection in HIV/AIDS patients. Imaging identification of neurotoxoplasmosis assists in timely treatment. Purpose: To delineate the frequency of imaging abnormalities in patients with neurotoxoplasmosis on different MR sequences with a particular focus on SWI, and NCCT. Material and methods: The PACS database was retroactively searched over a 5-year period for patients with neurotoxoplasmosis who underwent MRI with SWI...
2018: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29713774/diagnostic-value-of-six-mri-features-for-central-neurocytoma
#9
Xiaodan Li, Liuji Guo, Sen Sheng, Yikai Xu, Lichao Ma, Xiang Xiao, Zhiguang Si, Yanping Chen, Yuankui Wu
OBJECTIVES: To increase our understanding of the imaging features of central neurocytoma (CN) and improve the preoperative MRI diagnosis accuracy. METHODS: Preoperative MR images of 30 CNs and another 68 intraventricular non-CN tumours were analysed by one experienced neuroradiologist retrospectively to identify previously reported features and new features of CN. Six blinded radiologists independently reviewed all these MRI images, and scored all characteristic features on a five-point scale...
April 30, 2018: European Radiology
https://www.readbyqxmd.com/read/29713224/falcine-sinus-incidence-and-imaging-characteristics-of-three-dimensional-contrast-enhanced-thin-section-magnetic-resonance-imaging
#10
Ling Lin, Jin-Hua Lin, Jian Guan, Xiao-Ling Zhang, Jian-Ping Chu, Zhi-Yun Yang
Objective: To evaluate the incidence, characteristics, and variations of the falcine sinus with contrast-enhanced three-dimentional (3D) thin-section magnetic resonance (MR) images. Materials and Methods: A retrospective review identified 1531 patients (745 males and 786 females, 2 months to 85 years) who underwent cranial MR imaging including T1-weighted imaging, T2-weighted imaging, T2-weighted fluid-attenuated inversion recovery, contrast-enhanced 3D thin-section sagittal scans, and MR venography, from June 2014 to January 2016...
May 2018: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
https://www.readbyqxmd.com/read/29707058/t1-weighted-mr-imaging-of-bone-marrow-pattern-in-children-with-adolescent-idiopathic-scoliosis-a-preliminary-study
#11
S I Shiran, L Shabtai, L Ben-Sira, D Ovadia, S Wientroub
Purpose: Distinct normal physiological patterns of fat conversion in vertebrae were described both for children and adults. Our aim was to evaluate the T1-weighted bone marrow pattern of the vertebral bodies in various sites along the scoliotic spine of children with adolescent idiopathic scoliosis (AIS). Methods: We retrospectively evaluated spine MRI studies of children with AIS. Scoliosis radiographs were assessed for type of curvature according to the Lenke classification...
April 1, 2018: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/29691597/preoperative-digital-subtraction-angiography-in-incidental-unruptured-intracranial-aneurysms-how-much-is-too-much
#12
Moriz Herzberg, Robert Forbrig, Christian Schichor, Hartmut Brückmann, Franziska Dorn
PURPOSE: Digital subtraction angiography (DSA) is deemed necessary to precisely visualize intracranial aneurysms and define individual treatment strategies. In patients with unruptured intracranial aneurysms (UIA) who were diagnosed by MRI, a four-vessel DSA is usually performed to detect additional aneurysms. This study aimed to evaluate whether the evaluation of all vessels beyond the aneurysm-harboring artery is really necessary. MATERIAL AND METHODS: Patients with an UIA that was detected on MRA (TOF/ceMRA) were prospectively included...
April 24, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29685523/impact-of-model-based-iterative-reconstruction-mbir-on-image-quality-in-cerebral-ct-angiography-before-and-after-intracranial-aneurysm-treatment
#13
Steven David Hajdu, Roy Thomas Daniel, Reto Antoine Meuli, Jean-Baptiste Zerlauth, Vincent Dunet
PURPOSE: To subjectively and objectively assess the impact of model-based iterative reconstruction(MBIR) on image quality in cerebral computed tomography angiography compared to adaptive statistical iterative reconstruction (ASIR). METHODS: 107 patients (mean age: 58 ± 14 years) were included prior to (n = 38) and after (n = 69) intracranial aneurysm treatment. Images were acquired using a routine protocol and reconstructed with MBIR and ASIR. Image noise, signal-to-noise (SNR) and contrast-to-noise (CNR) ratios in the internal carotid and middle cerebral arteries were compared between MBIR and ASIR using the Wilcoxon signed-rank test...
May 2018: European Journal of Radiology
https://www.readbyqxmd.com/read/29685401/a-comparison-of-neuroradiology-and-pediatric-radiology-job-boards
#14
Cory M Pfeifer
PURPOSE: ACR workforce surveys have suggested progressive recovery in the number of available jobs for radiologists over the past several years. The purpose of this study was to ascertain the status of jobs available in diagnostic radiology as well as to analyze the content of the job boards of general radiology and subspecialty societies with the intent of uncovering differences in posting preferences to better steer job seekers. METHODS: The content of the online job boards hosted by the SPR, ASNR, ACR, and RSNA was evaluated on 365 consecutive days between July 1, 2016 and June 30, 2016...
March 19, 2018: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/29678501/anatomic-factors-affecting-the-use-of-ultrasound-to-predict-vocal-fold-motion-a-pilot-study
#15
Maheer M Masood, Benjamin Huang, Allie Goins, Trevor G Hackman
PURPOSE: Ultrasonography is a well-established modality for visualization of head and neck anatomy. Using ultrasound to detect vocal fold mobility has been described before, but no study has evaluated factors affecting the exam reliability. The aim of the study is to determine anatomic factors influencing the reliability of ultrasound to detect vocal fold motion. Methods and materials Patients underwent ultrasound evaluation and flexible laryngoscopy to assess vocal fold motion from August 2015 to March 2016...
April 13, 2018: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/29674411/sequential-apparent-diffusion-coefficient-for-assessment-of-tumor-progression-in-patients-with-low-grade-glioma
#16
I E Chen, N Swinburne, N M Tsankova, M M Hefti, A Aggarwal, A H Doshi, A Hormigo, B N Delman, K Nael
BACKGROUND AND PURPOSE: Early and accurate identification of tumor progression in patients with low-grade gliomas is challenging. We aimed to assess the role of quantitative ADC analysis in the sequential follow-up of patients with low-grade gliomas as a potential imaging marker of tumor stability or progression. MATERIALS AND METHODS: In this retrospective study, patients with a diagnosis of low-grade glioma with at least 12 months of imaging follow-up were retrospectively reviewed...
April 19, 2018: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29671958/synoptic-reporting-of-pituitary-magnetic-resonance-imaging
#17
Rana S Dhillon, James A King, Tony Goldschlager, Yi Yuen Wang
BACKGROUND: Pituitary adenomas are common, often asymptomatic tumours that are diagnosed incidentally by magnetic resonance imaging (MRI) of the brain. There is considerable variation in the reporting of pituitary MRI, in part because there is no consensus as to what information should be included in such reports. Synoptic reporting consists of using structured checklists to standardize communication. It has been adopted in the surgical pathology literature and more recently in the breast imaging field...
April 19, 2018: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/29665763/neuroimaging-radiological-interpretation-system-niris-for-acute-traumatic-brain-injury-tbi
#18
Max Wintermark, Ying Li, Victoria Y Ding, Yingding Xu, Bin Jiang, Robyn L Ball, Michael Zeineh, Alisa Gean, Pina Sanelli
To develop an outcome-based NeuroImaging Radiological Interpretation System (NIRIS) for acute traumatic brain injury (TBI) patients that would standardize the interpretation of non-contrast head CTs and consolidate imaging findings into ordinal severity categories that would inform specific patient management actions and that could be used as a clinical decision support tool. We retrospectively identified all patients transported to our emergency department by ambulance or helicopter, for whom a trauma alert was triggered per established criteria and who underwent a non-contrast head CT due to suspicion of TBI, between November 2015 and April 2016...
April 18, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29663010/septo-optic-dysplasia-assessment-of-associated-findings-with-special-attention-to-the-olfactory-sulci-and-tracts
#19
John C Benson, David Nascene, Charles Truwit, Alexander M McKinney
PURPOSE: Septo-optic dysplasia is a congenital disorder consisting of optic nerve hypoplasia and absent septum pellucidum. While associated anomalies have been described, olfactory sulcus and bulb-tract hypoplasia have been scantily reported and was the focus of this study. METHODS: The picture archival and communications system and radiology information system (PACS-RIS) was searched over 15 years for patients with suspected septo-optic dysplasia (n = 41) and cerebral magnetic resonance imaging (MRI)...
April 16, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29650787/management-of-small-unruptured-intracranial-aneurysms-a-survey-of-neuroradiologists
#20
A Malhotra, X Wu, B Geng, D Hersey, D Gandhi, P Sanelli
BACKGROUND AND PURPOSE: The long-term history and management of unruptured intracranial aneurysms is not well understood. Our aim was to determine current practice patterns in the management of unruptured intracranial aneurysms, especially regarding imaging surveillance for conservatively managed aneurysms of this type. MATERIALS AND METHODS: An on-line survey was designed to examine physician practice and preference regarding the management of small unruptured intracranial aneurysms (≤7 mm in diameter)...
April 12, 2018: AJNR. American Journal of Neuroradiology
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