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Child ICA

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https://www.readbyqxmd.com/read/28226452/high-resolution-eeg-source-imaging-of-one-year-old-children
#1
Zeynep Akalin Acar, Silvia Ortiz-Mantilla, April Benasich, Scott Makeig, Zeynep Akalin Acar, Silvia Ortiz-Mantilla, April Benasich, Scott Makeig, April Benasich, Scott Makeig, Zeynep Akalin Acar, Silvia Ortiz-Mantilla
Recently we described an iterative skull conductivity and source location estimation (SCALE) algorithm for simultaneously estimating head tissue conductivities and brain source locations. SCALE uses a realistic FEM forward problem head model and scalp maps of 10 or more near-dipolar sources identified by independent component analysis (ICA) decomposition of sufficient high-density EEG data. In this study, we applied SCALE to 20 minutes of 64-channel EEG data and magnetic resonance (MR) head images from four twelve-months-of-age infants...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28222386/heterogeneous-fractionation-profiles-of-meta-analytic-coactivation-networks
#2
Angela R Laird, Michael C Riedel, Mershack Okoe, Radu Jianu, Kimberly L Ray, Simon B Eickhoff, Stephen M Smith, Peter T Fox, Matthew T Sutherland
Computational cognitive neuroimaging approaches can be leveraged to characterize the hierarchical organization of distributed, functionally specialized networks in the human brain. To this end, we performed large-scale mining across the BrainMap database of coordinate-based activation locations from over 10,000 task-based experiments. Meta-analytic coactivation networks were identified by jointly applying independent component analysis (ICA) and meta-analytic connectivity modeling (MACM) across a wide range of model orders (i...
February 18, 2017: NeuroImage
https://www.readbyqxmd.com/read/28214015/anomalous-network-architecture-of-the-resting-brain-in-children-who-stutter
#3
Soo-Eun Chang, Michael Angstadt, Ho Ming Chow, Andrew C Etchell, Emily O Garnett, Ai Leen Choo, Daniel Kessler, Robert C Welsh, Chandra Sripada
PURPOSE: We combined a large longitudinal neuroimaging dataset that includes children who do and do not stutter and a whole-brain network analysis in order to examine the intra- and inter-network connectivity changes associated with stuttering. Additionally, we asked whether whole brain connectivity patterns observed at the initial year of scanning could predict persistent stuttering in later years. METHODS: A total of 224 high-quality resting state fMRI scans collected from 84 children (42 stuttering, 42 controls) were entered into an independent component analysis (ICA), yielding a number of distinct network connectivity maps ("components") as well as expression scores for each component that quantified the degree to which it is expressed for each child...
January 25, 2017: Journal of Fluency Disorders
https://www.readbyqxmd.com/read/28103825/factors-behind-the-success-story-of-under-five-stunting-in-peru-a-district-ecological-multilevel-analysis
#4
Luis Huicho, Carlos A Huayanay-Espinoza, Eder Herrera-Perez, Eddy R Segura, Jessica Niño de Guzman, María Rivera-Ch, Aluisio J D Barros
BACKGROUND: Stunting prevalence in children less than 5 years has remained stagnated in Peru from 1992 to 2007, with a rapid reduction thereafter. We aimed to assess the role of different predictors on stunting reduction over time and across departments, from 2000 to 2012. METHODS: We used various secondary data sources to describe time trends of stunting and of possible predictors that included distal to proximal determinants. We determined a ranking of departments by annual change of stunting and of different predictors...
January 19, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/27881961/functional-connectivity-of-child-and-adolescent-attention-deficit-hyperactivity-disorder-patients-correlation-with-iq
#5
Bo-Yong Park, Jisu Hong, Seung-Hak Lee, Hyunjin Park
Attention deficit hyperactivity disorder (ADHD) is a pervasive neuropsychological disorder that affects both children and adolescents. Child and adolescent ADHD patients exhibit different behavioral symptoms such as hyperactivity and impulsivity, but not much connectivity research exists to help explain these differences. We analyzed openly accessible resting-state functional magnetic resonance imaging (rs-fMRI) data on 112 patients (28 child ADHD, 28 adolescent ADHD, 28 child normal control (NC), and 28 adolescent NC)...
2016: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/27689245/vessel-preserving-stent-assisted-coil-embolization-of-an-extracranial-internal-carotid-artery-pseudoaneurysm-that-developed-after-tonsillectomy-in-a-pediatric-patient-initial-case-report
#6
Jeffrey Steinberg, Vincent Cheung, Gunjan Goel, J Scott Pannell, Javan Nation, Alexander Khalessi
Although there have been reports of carotid artery pseudoaneurysm formation after adenoidectomy and/or tonsillectomy secondary to iatrogenic injury, there are no case reports of successful endovascular reconstruction of the injured artery in the pediatric population. In most pediatric cases, the internal carotid artery (ICA) is sacrificed. The authors report on a 6-year-old girl who presented with odynophagia, left-sided Horner's syndrome, hematemesis, and severe anemia 6 months after a tonsillectomy. On examination she was found to have a pulsatile mass along the left posterior lateral oropharynx, and imaging demonstrated a dissection of the extracranial left ICA and an associated pseudoaneurysm...
January 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/27668916/carotid-artery-dissection-with-associated-territory-stroke-after-a-minor-head-trauma-in-a-healthy-4-month-old-child
#7
Robert Zant, Michael Melter, Christian Doerfler, Felix Schlachetzki, Ernst-Michael Jung, Stefan Schilling, Juergen Kunkel
Internal carotid artery (ICA) dissections with associated stroke are rare events in infants. The usual pathomechanisms include direct trauma to the artery, blunt intraoral trauma, or child abuse. We describe the case of a 4-month-old male patient with ICA dissection and associated middle cerebral artery territory infarction associated with hyperextension/hyperrotation after a minor head injury. Upon treatment with anticoagulants, the patient showed significant improvement of the left-sided hemiparesis. Hemorrhagic transformation that presented shortly after middle cerebral artery infarction did not further increase under heparin treatment and prevented further embolism...
September 23, 2016: Pediatric Emergency Care
https://www.readbyqxmd.com/read/27580333/genes-encoding-adhesion-factors-and-biofilm-formation-in-methicillin-resistant-staphylococcus-aureus-in-morocco
#8
Bahija Serray, Salwa Oufrid, Imane Hannaoui, Fatna Bourjilate, Nabila Soraa, Mostafa Mliji, Mohammed Sobh, Abderrahmane Hammoumi, Mohammed Timinouni, Mohamed El Azhari
INTRODUCTION: Infections involving methicillin-resistant Staphylococcus aureus (MRSA) remain a serious threat to hospitalized patients worldwide. MRSA is characterized by recalcitrance to antimicrobial therapy, which is a function not only of widespread antimicrobial resistance, but also the capacity to form biofilms. The present study evaluated the presence of genes encoding adhesion factors and the biofilm-forming capacity in MRSA. METHODOLOGY: In this study, 53 isolates of MRSA, recovered from December 2010 to May 2014 in a mother and child hospital, CHU Mohamed VI in Marrakech, Morocco, were screened for the presence of bap and ica genes associated with biofilm formation, and for bbp, cna, ebpS, eno, fib, fnbA, fnbB, clfA, and clfB genes that encode microbial surface components recognizing adhesive matrix molecules (MSCRAMMs)...
August 31, 2016: Journal of Infection in Developing Countries
https://www.readbyqxmd.com/read/26894148/persistent-primitive-hypoglossal-artery-ppha-a-rare-anomaly-with-literature-review
#9
M R Srinivas, K S Vedaraju, B H Manjappa, B R Nagaraj
Persistent primitive hypoglossal artery (PPHA) is a rare embryonic carotid vertebrobasilar artery anastomosis. Hypoglossal artery arises from the internal carotid artery (ICA) between the C1 and C2 vertebral levels and traverses through the hypoglossal canal to join the vertebro-basilar system. We present a rare case of an anomalous right sided PPHA as a sole supply to posterior circulation of brain with absent/hypoplastic bilateral vertebral arteries in a two year child who had presented with acute left sided haemiplegia...
January 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/26060279/endovascular-treatment-of-an-infected-pseudoaneurysm-secondary-to-retropharyngeal-abscess-in-a-child
#10
Waleed Brinjikji, Felix E Diehn, Christopher W Lindsay, Jonathan M Morris
We describe a rare case of carotid pseudoaneurysm secondary to a retropharyngeal abscess, treated with coil embolization in a 2-year-old boy. The patient presented to an emergency department with symptoms suggesting meningitis but was subsequently diagnosed with streptococcal pharyngitis. He was discharged home on oral antibiotics after a short hospitalization. He returned to the emergency department two weeks later with limited neck motion and pain. Neck CT demonstrated a retropharyngeal abscess with a large left cervical internal carotid artery (ICA) pseudoaneurysm...
August 2015: Interventional Neuroradiology
https://www.readbyqxmd.com/read/26041396/-a-child-who-developed-internal-carotid-artery-obstruction-2-weeks-after-incurring-an-intraoral-blunt-injury-a-case-report
#11
Ryuhei Kono, Shinzo Ota, Yutaka Shimoe, Akio Tanaka, Masaru Kuriyama
This report describes a 9-year-old boy with an internal carotid artery (ICA) injury caused by a fall with the blunt edge of a toothbrush held in the mouth. The initial injury appeared trivial, but 2 weeks later, generalized convulsion and left hemiparesis occurred. Magnetic resonance imaging and magnetic resonance angiography revealed an infarction of the right striatum, right ICA occlusion, and stenosis of the right middle cerebral artery, which were caused by the dissection or intimal damage of the ICA due to the blunt trauma...
2015: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/25997663/endovascular-occlusion-of-cervical-internal-carotid-artery-pseudoaneurysm-in-a-child-treated-by-n-butyl-cyanoacrylate-a-rare-case-report
#12
Anita Jagetia, Divyajyoti Sharma, Daljit Singh, Sanjiv Sinha, Pragati Ganjoo, Poonam Narang, Veeresh Mathod
We report a rare case of spontaneous extracranial cervical internal carotid artery (ICA) pseudoaneurysm in a female child aged 3 years who presented with a swelling in the neck which had bled following an attempted incision as it had been thought to be an abscess. A CT angiogram and an MR angiogram were not very conclusive to diagnose the exact site of origin and the morphology of the aneurysm. Digital subtraction angiography revealed a dissecting pseudoaneurysm of the right extracranial cervical ICA. The right ICA was ending as a pseudosac, and the right cerebral circulation was filling up through the right posterior cerebral artery...
2015: Pediatric Neurosurgery
https://www.readbyqxmd.com/read/25711093/-local-eeg-characteristics-of-the-children-with-psychic-abnormalities-examined-by-independent-components-analysis-ica
#13
N Iu Kozhushko, S A Evdokimov, Iu K Matveev, E P Tereshchenko, Iu D Kropotov
The method of independent components within the range of 3-13 Hz was used for the analysis of EEG of the children with psychic abnormalities of perinatal origin. The research was undertaken while children were keeping awake with open eyes. In cases of harder developmental delay it was revealed a significant rise of θ-range power spectrum in frontal-temporal cortex areas of left hemisphere and temporal areas of right hemisphere. This fact make it possible to regard these areas as hypothetic sources of slow activity and a damage/immaturity marker of frontal-thalamic area and the temporal areas, responsible for auditory analysis and verbal synthesis, audio & visual data integration...
September 2014: Fiziologiia Cheloveka
https://www.readbyqxmd.com/read/25431900/internal-carotid-artery-surgical-revascularization-in-a-pediatric-patient-with-schimke-immuno-osseous-dysplasia
#14
Erick M Westbroek, Nitin Mukerji, Paul Kalanithi, Gary K Steinberg
Schimke immuno-osseous dysplasia (SIOD) is a rare autosomal recessive disorder characterized by spondyloepiphyseal dysplasia, episodic lymphopenia, renal failure, and cerebrovascular disease secondary to arteriosclerosis and myointimal hyperplasia. In this paper the authors report the first known application of internal carotid artery (ICA) surgical revascularization to relieve a high-grade focal stenosis of the ICA in a pediatric patient, a 6-year-old boy with SIOD. The clinical presentation, imaging features, operative technique, and postoperative course are described and the molecular genetics, pathophysiology, and treatment considerations in SIOD are discussed...
February 2015: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/25380175/thrombosis-and-spontaneous-recanalization-of-a-giant-intracranial-aneurysm-diagnostic-and-management-pearls-in-a-pediatric-patient
#15
Ali Kooshkabadi, Brian Jankowitz, Phillip A Choi, Gregory M Weiner, Stephanie Greene
The authors present the case of a boy who was successfully managed through the spontaneous thrombosis of a cavernous internal carotid artery (ICA) aneurysm, the subsequent occlusion of the ICA, its recanalization, and ultimate endovascular sacrifice, using only two angiograms because of the diagnostic capability of CT angiography. Spontaneous recanalization of the ICA following occlusion in the setting of a giant aneurysm has not been previously reported.
January 2015: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/25161809/imaging-of-dual-ophthalmic-arteries-identification-of-the-central-retinal-artery
#16
Louise Louw, Johan Steyl, Eugene Loggenberg
Identification of the origin of the central retinal artery (CRA) is imperative in tailoring angiographic studies to resolve a given clinical problem. A case with dual ophthalmic arteries (OAs), characterized by different origins and distinct branching patterns, is documented for training purposes. Pre-clinical diagnosis of a 9-year-old child who presented with a sharp wire in the left-side eyeball was primarily corneal laceration. For imaging, a selected six-vessel angiographic study with the transfemoral approach was performed...
2014: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/25085802/estimated-disability-adjusted-life-years-averted-by-long-term-provision-of-long-acting-contraceptive-methods-in-a-brazilian-clinic
#17
Luis Bahamondes, Bruna F Bottura, M Valeria Bahamondes, Mayara P Gonçalves, Vinicius M Correia, Ximena Espejo-Arce, Maria H Sousa, Ilza Monteiro, Arlete Fernandes
STUDY QUESTION: What is the contribution of the provision, at no cost for users, of long acting reversible contraceptive methods (LARC; copper intrauterine device [IUD], the levonorgestrel-releasing intrauterine system [LNG-IUS], contraceptive implants and depot-medroxyprogesterone [DMPA] injection) towards the disability-adjusted life years (DALY) averted through a Brazilian university-based clinic established over 30 years ago. SUMMARY ANSWER: Over the last 10 years of evaluation, provision of LARC methods and DMPA by the clinic are estimated to have contributed to DALY averted by between 37 and 60 maternal deaths, 315-424 child mortalities, 634-853 combined maternal morbidity and mortality and child mortality, and 1056-1412 unsafe abortions averted...
October 10, 2014: Human Reproduction
https://www.readbyqxmd.com/read/25057467/a-tensor-based-morphometry-analysis-of-regional-differences-in-brain-volume-in-relation-to-prenatal-alcohol-exposure
#18
E M Meintjes, K L Narr, A J W van der Kouwe, C D Molteno, T Pirnia, B Gutman, R P Woods, P M Thompson, J L Jacobson, S W Jacobson
Reductions in brain volumes represent a neurobiological signature of fetal alcohol spectrum disorders (FASD). Less clear is how regional brain tissue reductions differ after normalizing for brain size differences linked with FASD and whether these profiles can predict the degree of prenatal exposure to alcohol. To examine associations of regional brain tissue excesses/deficits with degree of prenatal alcohol exposure and diagnosis with and without correction for overall brain volume, tensor-based morphometry (TBM) methods were applied to structural imaging data from a well-characterized, demographically homogeneous sample of children diagnosed with FASD (n = 39, 9...
2014: NeuroImage: Clinical
https://www.readbyqxmd.com/read/24954539/ocular-and-cardiac-artifact-rejection-for-real-time-analysis-in-meg
#19
Lukas Breuer, Jürgen Dammers, Timothy P L Roberts, N Jon Shah
BACKGROUND: Recently, magnetoencephalography (MEG) based real-time brain computing interfaces (BCI) have been developed to enable novel and promising methods for neuroscience research. It is well known that artifact rejection prior to source localization largely enhances the localization accuracy. However, many BCI approaches neglect real-time artifact removal due to its time consuming process. NEW METHOD: The method (referred to as ocular and cardiac artifact rejection for real-time analysis, OCARTA) is based on constrained independent component analysis (cICA), where a priori information of the underlying source signals is used to optimize and accelerate signal decomposition...
August 15, 2014: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/24835178/digital-facial-dysmorphology-for-genetic-screening-hierarchical-constrained-local-model-using-ica
#20
Qian Zhao, Kazunori Okada, Kenneth Rosenbaum, Lindsay Kehoe, Dina J Zand, Raymond Sze, Marshall Summar, Marius George Linguraru
Down syndrome, the most common single cause of human birth defects, produces alterations in physical growth and mental retardation. If missed before birth, the early detection of Down syndrome is crucial for the management of patients and disease. However, the diagnostic accuracy for pediatricians prior to cytogenetic results is moderate and the access to specialists is limited in many social and low-economic areas. In this study, we propose a simple, non-invasive and automated framework for Down syndrome detection based on disease-specific facial patterns...
July 2014: Medical Image Analysis
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