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https://www.readbyqxmd.com/read/28542743/neuroimaging-cardiovascular-physiology-and-functional-outcomes-in-infants-with-congenital-heart-disease
#1
REVIEW
Nathalie H P Claessens, Christopher J Kelly, Serena J Counsell, Manon J N L Benders
This review integrates data on brain dysmaturation and acquired brain injury using fetal and neonatal magnetic resonance imaging (MRI), including the contribution of cardiovascular physiology to differences in brain development, and the relationship between brain abnormalities and subsequent neurological impairments in infants with congenital heart disease (CHD). The antenatal and neonatal period are critical for optimal brain development; the developing brain is particularly vulnerable to haemodynamic disturbances during this time...
May 19, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28538329/perioperative-care-for-pediatric-patients-with-penetrating-brain-injury-a-review
#2
Marco Mikhael, Elizabeth Frost, Maria Cristancho
Traumatic brain injury (TBI) continues to be the leading cause of death and acquired disability in young children and adolescents, due to blunt or penetrating trauma, the latter being less common but more lethal. Penetrating brain injury (PBI) has not been studied extensively, mainly reported as case reports or case series, due to the assumption that both types of brain injury have common pathophysiology and consequently common management. However, recommendations and guidelines for the management of PBI differ from those of blunt TBI in regards to neuroimaging, intracranial pressure (ICP) monitoring, and surgical management including those pertaining to vascular injury...
May 19, 2017: Journal of Neurosurgical Anesthesiology
https://www.readbyqxmd.com/read/28537985/neuroimaging-in-parkinson-s-disease-focus-on-substantia-nigra-and-nigro-striatal-projection
#3
Daniela Frosini, Mirco Cosottini, Duccio Volterrani, Roberto Ceravolo
PURPOSE OF REVIEW: The diagnosis of Parkinson disease is based on clinical features; however, unmet need is an imaging signature for Parkinson disease and the early differential diagnosis with atypical parkinsonisms. A summary of the molecular imaging and MRI recent evidences for Parkinson disease diagnosis will be presented in this review. RECENT FINDINGS: The nigro-striatal dysfunction explored by dopamine transporter imaging is not a mandatory diagnostic criterion for Parkinson disease, recent evidence supported its utility as in-vivo proof of degenerative parkinsonisms, and there might be compensatory mechanisms leading to an early overestimation...
May 22, 2017: Current Opinion in Neurology
https://www.readbyqxmd.com/read/28537651/the-burden-of-hiv-associated-neurocognitive-disorder-hand-in-post-haart-era-a-multidisciplinary-review-of-the-literature
#4
G Caruana, G Vidili, P A Serra, P Bagella, A Spanu, V Fiore, D F Calvisi, R Manetti, G Rocchitta, S Nuvoli, S Babudieri, M M Simile, G Madeddu
OBJECTIVE: The purpose of the present multidisciplinary review is to give an updated insight into the most recent findings regarding the pathophysiology, diagnosis and therapeutics of HIV-associated neurocognitive disorder (HAND). MATERIALS AND METHODS: We performed a comprehensive search, through electronic databases (Pubmed - MEDLINE) and search engines (Google Scholar), of peer-reviewed publications (articles and reviews) and conferences proceedings on HAND pathophysiology, diagnosis, and therapy, from 1999 to 2016...
May 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28537352/is-pseudotumor-cerebri-an-unusual-expression-of-chiari-syndrome-a-case-report-and-review-of-the-literature
#5
Paolo Pacca, Roberto Altieri, Francesco Zenga, Diego Garbossa, Alessandro Ducati, Michele Lanotte
The Chiari I malformation (CM-I) is a developmental alteration of the posterior cranial fossa (PCF), radiographically defined as the descent of the cerebellar tonsils = 5 mm below the foramen magnum (FM) inside the cervical canal. Headache is the most frequent symptom associated with CM-I. The association of CM-I and neurological symptoms configures with Chiari syndrome. A rare symptom associated with Chiari syndrome is intracranial hypertension syndrome with cephalea and papilloedema-the typical findings of pseudotumor cerebri (PTC)...
May 24, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/28535967/how-the-brain-reacts-to-social-stress-exclusion-a-scoping-review
#6
REVIEW
Huiying Wang, Christoph Braun, Paul Enck
OBJECTIVES: The Cyberball paradigm is often used to study social stress by exclusion/rejection. We aimed to review the existing neuroimaging literatures in order to provide an overview of the neurophysiological mechanisms of social exclusion. METHOD: Literature search was conducted to identify neurophysiological studies that investigated effects of social exclusion on neural activity using the Cyberball game and the relevant influential factors on these effects...
May 20, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28534259/the-efficacy-of-orbital-ultrasonography-and-magnetic-resonance-imaging-findings-with-direct-measurement-of-intracranial-pressure-in-distinguishing-papilledema-from-pseudopapilledema
#7
Zeynep Ozturk, Tuba Atalay, Ebru Arhan, Kursad Aydin, Ayse Serdaroglu, Tugba Hirfanoglu, Cengiz Havali, Yilmaz Akbas, Duygu Yalinbas
INTRODUCTION: The goal of this study was to evaluate the utility of orbital ultrasonography and magnetic resonance imaging in the diagnosis of idiopathic intracranial hypertension (IIH). METHOD: We reviewed the medical records of patients referred to our department for suspected IIH. RESULTS: Seven children were diagnosed with IIH. Nine children revealed pseudopapilledema by optic coherence tomography and/or orbital ultrasonography. When the axial sequences were reexamined, patients with papilledema had optic nerve sheath (ONS) enlargement (6...
May 22, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28531331/diagnostic-challenges-in-meningioma
#8
Martha Nowosielski, Nobert Galldiks, Sarah Iglseder, Philipp Kickingereder, Andreas von Deimling, Martin Bendszus, Wolfgang Wick, Felix Sahm
Advances in molecular profiling and the application of advanced imaging techniques are currently refreshing diagnostic considerations in meningioma patients. Not only technical refinements but also sophisticated histopathological and molecular studies have the potential to overcome some of the challenges during meningioma management. Exact tumor delineation, assessment of tumor growth and pathophysiological parameters were recently addressed by "advanced" magnetic resonance imaging and positron emission tomography...
May 20, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28530428/short-term-memory-and-long-term-memory-are-still-different
#9
Dennis Norris
A commonly expressed view is that short-term memory (STM) is nothing more than activated long-term memory. If true, this would overturn a central tenet of cognitive psychology-the idea that there are functionally and neurobiologically distinct short- and long-term stores. Here I present an updated case for a separation between short- and long-term stores, focusing on the computational demands placed on any STM system. STM must support memory for previously unencountered information, the storage of multiple tokens of the same type, and variable binding...
May 22, 2017: Psychological Bulletin
https://www.readbyqxmd.com/read/28529878/neuroimaging-in-pre-motor-parkinson-s-disease
#10
REVIEW
Thomas R Barber, Johannes C Klein, Clare E Mackay, Michele T M Hu
The process of neurodegeneration in Parkinson's disease begins long before the onset of clinical motor symptoms, resulting in substantial cell loss by the time a diagnosis can be made. The period between the onset of neurodegeneration and the development of motoric disease would be the ideal time to intervene with disease modifying therapies. This pre-motor phase can last many years, but the lack of a specific clinical phenotype means that objective biomarkers are needed to reliably detect prodromal disease...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28529059/a-review-of-human-neuroimaging-investigations-involved-with-central-autonomic-regulation-of-baroreflex-mediated-cardiovascular-control
#11
Derek S Kimmerly
Effective regulation of central blood volume and arterial pressure is critical for optimal cardiovascular homeostasis. Inadequate regulation of mean arterial pressure has important pathophysiological implications including syncope, end organ damage, and stroke. Such regulation requires appropriate central integration of barosensory afferents and reflex autonomic control of the heart and blood vessels. The neural pathways involved with the baroreflex include brainstem nuclei that receive modulatory input from higher brain centres...
May 15, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28529008/role-of-polyunsaturated-fatty-acids-in-human-brain-structure-and-function-across-the-lifespan-an-update-on-neuroimaging-findings
#12
REVIEW
Robert K McNamara, Ruth H Asch, Diana M Lindquist, Robert Krikorian
There is a substantial body of evidence from animal studies implicating polyunsaturated fatty acids (PUFA) in neuroinflammatory, neurotrophic, and neuroprotective processes in brain. However, direct evidence for a role of PUFA in human brain structure and function has been lacking. Over the last decade there has been a notable increase in neuroimaging studies that have investigated the impact of PUFA intake and/or blood levels (i.e., biostatus) on brain structure, function, and pathology in human subjects. The majority of these studies specifically evaluated associations between omega-3 PUFA intake and/or biostatus and neuroimaging outcomes using a variety of experimental designs and imaging techniques...
May 9, 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/28527230/imaging-and-neuropsychological-correlates-of-white-matter-lesions-in-different-subtypes-of-mild-cognitive-impairment-a-systematic-review
#13
Charlene L M Lam, Jenny Yiend, Tatia M C Lee
BACKGROUND: White matter lesions (WML) are prevalent in older adults. The association between WML and cognition in different subtypes of Mild Cognitive Impairment (MCI) is inconsistent in the literature. OBJECTVES: We aim to provide a systematic review on the impact of WML in different subtypes of MCI, and discuss the recent findings on white matter plasticity. METHODS: We reviewed peer-reviewed articles from January 2011 to August 2016 and identified 12 studies investigating the association between WML and subtypes of MCI with both neuroimaging and cognitive measures...
May 13, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28527209/neuroimaging-and-its-relevance-to-understanding-pathways-linking-diabetes-and-cognitive-dysfunction
#14
Chris Moran, Richard Beare, Thanh Phan, Sergio Starkstein, David Bruce, Mizrahi Romina, Velandai Srikanth
Diabetes mellitus is associated with an elevated risk of cognitive impairment and dementia. Cerebrovascular disease and neurodegeneration are two major pathways that may explain the effect of diabetes on the brain and therefore deserve investigation. Neuroimaging provides an effective way to investigate the contribution of these pathways in vivo, guiding further mechanistic research and providing biomarkers for clinical correlation or interventional studies. In this paper, we present a narrative review of the state of play with neuroimaging evidence in studies of people with diabetes mellitus, how these data are useful in understanding mechanistic links between diabetes and brain impairment, and possible ways that the field may develop in the future...
May 17, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28524222/-neuroimaging-in-epileptic-encephalopathies-in-infants
#15
M A Lopez-Pino, E Garcia-Esparza
Magnetic resonance plays a vital role in the aetiological diagnosis of epileptic encephalopathies, since it is capable of identifying specific aetiological patterns or patterns which are suggestive of different conditions. We review the main magnetic resonance findings that are observed in symptomatic epileptic encephalopathies.
May 17, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28522665/nonmicrocephalic-infants-with-congenital-zika-syndrome-suspected-only-after-neuroimaging-evaluation-compared-with-those-with-microcephaly-at-birth-and-postnatally-how-large-is-the-zika-virus-iceberg
#16
M F V V Aragao, A C Holanda, A M Brainer-Lima, N C L Petribu, M Castillo, V van der Linden, S C Serpa, A G Tenório, P T C Travassos, M T Cordeiro, C Sarteschi, M M Valenca, A Costello
BACKGROUND AND PURPOSE: Although microcephaly is the most prominent feature of congenital Zika syndrome, a spectrum with less severe cases is starting to be recognized. Our aim was to review neuroimaging of infants to detect cases without microcephaly and compare them with those with microcephaly. MATERIALS AND METHODS: We retrospectively evaluated all neuroimaging (MR imaging/CT) of infants 1 year of age or younger. Patients with congenital Zika syndrome were divided into those with microcephaly at birth, postnatal microcephaly, and without microcephaly...
May 18, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28520598/imaging-plus-x-multimodal-models-of-neurodegenerative-disease
#17
Neil P Oxtoby, Daniel C Alexander
PURPOSE OF REVIEW: This article argues that the time is approaching for data-driven disease modelling to take centre stage in the study and management of neurodegenerative disease. The snowstorm of data now available to the clinician defies qualitative evaluation; the heterogeneity of data types complicates integration through traditional statistical methods; and the large datasets becoming available remain far from the big-data sizes necessary for fully data-driven machine-learning approaches...
May 16, 2017: Current Opinion in Neurology
https://www.readbyqxmd.com/read/28519903/functional-neuroimaging-offers-insights-into-delirium-pathophysiology-a-systematic-review
#18
REVIEW
Lucy Haggstrom, Robert Welschinger, Gideon A Caplan
OBJECTIVE: This systematic review describes the current functional neuroimaging literature in delirium, discusses pathophysiological implications of these results and highlights areas for further study. METHODS: In accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, an extensive search of medical databases was undertaken, identifying eighteen studies of variable quality and design suitable for inclusion. RESULTS: Functional neuroimaging has highlighted significant abnormalities during delirium, with disturbances in cerebral haemodynamics and functional connectivity potentially playing a key role in delirium pathophysiology...
May 18, 2017: Australasian Journal on Ageing
https://www.readbyqxmd.com/read/28516376/an-update-on-the-approach-to-the-imaging-of-brain-tumors
#19
REVIEW
Katherine M Mullen, Raymond Y Huang
PURPOSE OF REVIEW: Neuroimaging plays a critical role in diagnosis of brain tumors and in assessment of response to therapy. However, challenges remain, including accurately and reproducibly assessing response to therapy, defining endpoints for neuro-oncology trials, providing prognostic information, and differentiating progressive disease from post-therapeutic changes particularly in the setting of antiangiogenic and other novel therapies. RECENT FINDINGS: Recent advances in the imaging of brain tumors include application of advanced MRI imaging techniques to assess tumor response to therapy and analysis of imaging features correlating to molecular markers, grade, and prognosis...
July 2017: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/28516232/-cns-metabolism-in-high-risk-drug-abuse-german-version-insights-gained-from-1-h-and-31-p-mrs-and-pet
#20
REVIEW
S V Bodea
BACKGROUND: High-risk drug consumption is a considerable problem for public health actors in industrialised countries. The latest trends show a market tendency towards diversification and increasing demand for high-purity synthetic drugs. Whilst most consumers seek medical help after cannabis use, it is high-risk drugs like cocaine, heroin and amphetamines that account for most of the 1000 drug-related deaths that occur in Germany every year. PURPOSE: This article presents the most prominent in vivo cerebral metabolic information in cocaine, heroin and methamphetamine users provided by MRI spectroscopy and PET imaging...
May 17, 2017: Der Radiologe
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