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Newborn magnetic resonance

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https://www.readbyqxmd.com/read/28089767/the-correlation-between-a-short-term-conventional-electroencephalography-in-the-first-day-of-life-and-brain-magnetic-resonance-imaging-in-newborns-undergoing-hypothermia-for-hypoxic-ischemic-encephalopathy
#1
Rawad Obeid, Yoshimi Sogawa, Satyanarayana Gedela, Monica Naik, Vince Lee, Richard Telesco, Jessica Wisnowski, Christine Magill, Michael J Painter, Ashok Panigrahy
OBJECTIVE: Electroencephalograph recorded in the first day of life in newborns treated with hypothermia for hypoxic-ischemic encephalopathy could be utilized as a predictive tool for the severity of brain injury on magnetic resonance imaging and mortality. STUDY DESIGN: This work was a retrospective study of newborns who were admitted for therapeutic hypothermia due to hypoxic-ischemic encephalopathy. All enrolled infants underwent encephalography within the first 24 hours of life and underwent brain magnetic resonance imaging after rewarming...
November 3, 2016: Pediatric Neurology
https://www.readbyqxmd.com/read/28079874/cerebral-modulation-of-the-autonomic-nervous-system-in-term-infants
#2
N Schneebaum Sender, R B Govindan, M T Whitehead, A N Massaro, M Metzler, J Wang, Y I Cheng, A J du Plessis
OBJECTIVE: Central topography of autonomic nervous system (ANS) function has yet to be fully deciphered. In adults it has been shown to lateralize sympathetic and parasympathetic influence predominantly to the right and left cerebral hemispheres, respectively. We examined functional topography of central ANS in newborn subjects utilizing spectral analysis of heart rate variability (HRV), an established measure of ANS function. STUDY DESIGN: We studied newborns with hypoxic-ischemic encephalopathy participating in a prospective study undergoing a therapeutic hypothermia protocol...
January 12, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28076368/functional-laterality-of-task-evoked-activation-in-sensorimotor-cortex-of-preterm-infants-an-optimized-3-t-fmri-study-employing-a-customized-neonatal-head-coil
#3
Lukas Scheef, Jurek A Nordmeyer-Massner, Adam Pr Smith-Collins, Nicole Müller, Gaby Stegmann-Woessner, Jacob Jankowski, Jürgen Gieseke, Mark Born, Hermann Seitz, Peter Bartmann, Hans H Schild, Klaas P Pruessmann, Axel Heep, Henning Boecker
BACKGROUND: Functional magnetic resonance imaging (fMRI) in neonates has been introduced as a non-invasive method for studying sensorimotor processing in the developing brain. However, previous neonatal studies have delivered conflicting results regarding localization, lateralization, and directionality of blood oxygenation level dependent (BOLD) responses in sensorimotor cortex (SMC). Amongst the confounding factors in interpreting neonatal fMRI studies include the use of standard adult MR-coils providing insufficient signal to noise, and liberal statistical thresholds, compromising clinical interpretation at the single subject level...
2017: PloS One
https://www.readbyqxmd.com/read/28063691/clinical-risk-factors-for-punctate-white-matter-lesions-on-early-magnetic-resonance-imaging-in-preterm-newborns
#4
Nienke Wagenaar, Vann Chau, Floris Groenendaal, Karina J Kersbergen, Kenneth J Poskitt, Ruth E Grunau, Anne Synnes, Emma G Duerden, Linda S de Vries, Steven P Miller, ManonJ N L Benders
OBJECTIVE: To identify clinical risk factors for punctate white matter lesions (PWML) on early magnetic resonance imaging (MRI) in 2 cohorts of newborns born extremely preterm in different neonatal centers. STUDY DESIGN: A total of 250 newborns born preterm at less than 28 weeks of gestation (mean 26.4 ± 1.1 weeks) with an early MRI were identified from 2 neonatal centers, in Vancouver, Canada (cohort A, n = 100) and Utrecht, the Netherlands (cohort B, n = 150)...
January 4, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28012949/cannabidiol-reduces-brain-damage-and-improves-functional-recovery-in-a-neonatal-rat-model-of-arterial-ischemic-stroke
#5
Maria Ceprián, Laura Jiménez-Sánchez, Carlos Vargas, Lorena Barata, Will Hind, Jose Martínez-Orgado
BACKGROUND: and purpose: Currently there is no effective treatment for neonatal arterial ischemic stroke (AIS). Cannabidiol (CBD) is neuroprotective in models of newborn hypoxic-ischemic brain damage and adult stroke. The purpose of this work was to study the protective effect of CBD in a neonatal rat model of AIS. METHODS: Middle Cerebral Artery Occlusion (MCAO) was achieved in neonatal Wistar rats by introducing a nylon filament to the left MCA for 3 h; 15 min after removing the occluder vehicle (MCAO-V) or CBD single dose 5 mg/kg (MCAO-C) were administered i...
December 21, 2016: Neuropharmacology
https://www.readbyqxmd.com/read/27976377/association-between-corpus-callosum-development-on-magnetic-resonance-imaging-and-diffusion-tensor-imaging-and-neurodevelopmental-outcome-in-neonates-born-very-preterm
#6
Anna M Malavolti, Vann Chau, Meisan Brown-Lum, Kenneth J Poskitt, Rollin Brant, Anne Synnes, Ruth E Grunau, Steven P Miller
AIM: To characterize corpus callosum development in neonates born very preterm from early in life to term-equivalent age and its relationship with neurodevelopmental outcome at 18 months corrected age. METHOD: In a prospective cohort of 193 neonates born preterm, 24 to 32 weeks' gestation, we used magnetic resonance imaging and diffusion tensor imaging acquired early in life (n=193) and at term-equivalent age (n=159) to measure corpus callosum development: mid-sagittal area (including corpus callosum subdivisions) and length, and fractional anisotropy from the genu and splenium...
December 14, 2016: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/27931613/later-onset-fabry-disease-cardiac-damage-progress-in-silence-experience-with-a-highly-prevalent-mutation
#7
Ting-Rong Hsu, Sheng-Che Hung, Fu-Pang Chang, Wen-Chung Yu, Shih-Hsien Sung, Chia-Lin Hsu, Ivan Dzhagalov, Chia-Feng Yang, Tzu-Hung Chu, Han-Jui Lee, Yung-Hsiu Lu, Sheng-Kai Chang, Hsuan-Chieh Liao, Hsiang-Yu Lin, Tsan-Chieh Liao, Pi-Chang Lee, Hsing-Yuan Li, An-Hang Yang, Hui-Chen Ho, Chuan-Chi Chiang, Ching-Yuang Lin, Robert J Desnick, Dau-Ming Niu
BACKGROUND: Recently, several studies revealed a much higher prevalence of later onset Fabry disease (FD) than previously expected. It suggested that later onset FD might present as an important hidden health issue in certain ethnic or demographic populations in the world. However, the natural history of its phenotype has not been systemically investigated, especially the cardiac involvement. OBJECTIVES: The study analyzed a large-scale newborn screening program for FD to understand the natural course of later onset FD...
December 13, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27906083/neonatal-diffusion-tensor-brain-imaging-predicts-later-motor-outcome-in-preterm-neonates-with-white-matter-abnormalities
#8
Do-Yeon Kim, Hyun-Kyung Park, Nam-Su Kim, Se-Jin Hwang, Hyun Ju Lee
BACKGROUND: White matter (WM) abnormalities associated with prematurity are one of the most important causes of neurological disability that involves spastic motor deficits in preterm newborns. This study aimed to evaluate regional microstructural changes in diffusion tensor imaging (DTI) associated with WM abnormalities. METHODS: We prospectively studied extremely low birth weight (ELBW; <1000 g) preterm infants who were admitted to the Neonatal Intensive Care Unit of Hanyang University Hospital between February 2011 and February 2014...
December 1, 2016: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/27900344/neurovascular-coupling-develops-alongside-neural-circuits-in-the-postnatal-brain
#9
COMMENT
Mariel G Kozberg, Elizabeth M C Hillman
In the adult brain, increases in local neural activity are accompanied by increases in regional blood flow. This relationship between neural activity and hemodynamics is termed neurovascular coupling and provides the blood flow-dependent contrast detected in functional magnetic resonance imaging (fMRI). Neurovascular coupling is commonly assumed to be consistent and reliable from birth; however, numerous studies have demonstrated markedly different hemodynamics in the early postnatal brain. Our recent study in J...
2016: Neurogenesis (Austin, Tex.)
https://www.readbyqxmd.com/read/27882082/early-identification-of-hypoxic-ischemic-encephalopathy-by-combination-of-magnetic-resonance-mr-imaging-and-proton-mr-spectroscopy
#10
Lili Guo, Dehang Wang, Genji Bo, Hui Zhang, Weijing Tao, Ying Shi
Brain damage following a perinatal hypoxic-ischemic encephalopathy (HIE) can be diagnosed by different techniques. The aim of the present study was to combine magnetic resonance (MR) imaging with proton MR spectroscopy in HIE diagnosis and to evaluate their correlation with outcome. A prospective observational cohort study was performed between February 2012 and February 2013. Consecutive newborns, 24 full-term neonates with HIE (mild to moderate and severe group) and 5 normal neonates, were included. Two sequential MR studies were performed; a conventional MR imaging for observation in T1 weighted image (WI) and T2WI, and proton MR spectroscopy for observation in the left or right basal ganglia and thalamus...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27865668/a-small-pons-as-a-characteristic-finding-in-down-syndrome-a-quantitative-mri-study
#11
Yuta Fujii, Noriko Aida, Tetsu Niwa, Mikako Enokizono, Kumiko Nozawa, Tomio Inoue
BACKGROUND: Down syndrome (DS) is the most common chromosomal aberration, but the characteristics of the brainstem component in this condition during childhood (from newborn to preteen stages) have not been clarified. OBJECTIVE: To evaluate the morphological features of the brainstem in DS on magnetic resonance imaging (MRI). MATERIALS AND METHODS: MRIs for 32 children with DS (16 boys and girls each; age range, 0-11years) without major brain insults, and 32 age-matched controls (16 boys and girls each) were retrospectively analyzed...
November 16, 2016: Brain & Development
https://www.readbyqxmd.com/read/27816478/microglia-derived-from-the-axotomized-adult-rat-facial-nucleus-uptake-glutamate-and-metabolize-it-to-glutamine-in%C3%A2-vitro
#12
Kazuyuki Nakajima, Tomoyuki Kanamatsu, Maasa Koshimoto, Shinichi Kohsaka
Microglia in the axotomized adult rat facial nucleus (axoFN) have been shown to highly express a glutamate transporter (GLT-1). The microglia appear to serve as glutamate (Glu) scavengers in the axoFN. However, there is no evidence that the microglia actually have the ability to uptake Glu and convert it to Gln. In this study, we investigated whether axoFN-derived microglia (axoFN-microglia) can uptake Glu and metabolize it to Gln. Microglia obtained by explant culture of axoFN on poly(N-isopropylacrylamide)-grafted dishes were non-invasively sub-cultured onto dishes or wells...
November 2, 2016: Neurochemistry International
https://www.readbyqxmd.com/read/27814705/maternal-urinary-metabolic-signatures-of-fetal-growth-and-associated-clinical-and-environmental-factors-in-the-inma-study
#13
Léa Maitre, Cristina M Villanueva, Matthew R Lewis, Jesús Ibarluzea, Loreto Santa-Marina, Martine Vrijheid, Jordi Sunyer, Muireann Coen, Mireille B Toledano
BACKGROUND: Maternal metabolism during pregnancy is a major determinant of the intra-uterine environment and fetal outcomes. Herein, we characterize the maternal urinary metabolome throughout pregnancy to identify maternal metabolic signatures of fetal growth in two subcohorts and explain potential sources of variation in metabolic profiles based on lifestyle and clinical data. METHODS: We used (1)H nuclear magnetic resonance (NMR) spectroscopy to characterize maternal urine samples collected in the INMA birth cohort at the first (n = 412 and n = 394, respectively, in Gipuzkoa and Sabadell cohorts) and third trimesters of gestation (n = 417 and 469)...
November 4, 2016: BMC Medicine
https://www.readbyqxmd.com/read/27759656/umbilical-cord-and-visceral-hemangiomas-diagnosed-in-the-neonatal-period-a-case-report-and-a-review-of-the-literature
#14
Alicia Iglesias-Deus, Alejandro Pérez-Muñuzuri, Adela Urisarri, Adolfo Bautista-Casasnovas, Maria-Luz Couce
BACKGROUND: Umbilical cord hemangioma is very rare and may not be detected prenatally. However, it should be considered in differential diagnosis with other umbilical masses because it can cause significant morbidity. METHODS: We report the case of a newborn referred with suspected omphalitis and umbilical hernia. RESULTS: Physical examination showed an irreducible umbilical tumor, the size of olive, with dubious secretion. The initial suspected diagnosis was urachal or omphalomesenteric duct remnants...
October 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27756362/spontaneous-rectus-sheath-hematoma-in-pregnancy-and-a-systematic-anatomical-workup-of-rectus-sheath-hematoma-a-case-report
#15
Kerstin Eckhoff, Thilo Wedel, Marcus Both, Kayhan Bas, Nicolai Maass, Ibrahim Alkatout
BACKGROUND: Rectus sheath hematoma is a rare clinical diagnosis, particularly in pregnancy. Due to unspecific symptoms, misdiagnosis is likely and could potentially endanger a patient as well as her fetus. CASE PRESENTATION: A 26-year-old white woman presented with mild right-sided abdominal pain, which increased during palpation and movement, at 26 + 3 weeks' gestational age. Ultrasound imaging initially showed a round and well-demarcated structure, which appeared to be in contact with her uterine wall, leading to a suspected diagnosis of an infarcted leiomyoma...
October 19, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27721940/thoracic-ultrasound-an-adjunctive-and-valuable-imaging-tool-in-emergency-resource-limited-settings-and-for-a-sustainable-monitoring-of-patients
#16
Francesca M Trovato, Daniela Catalano, Guglielmo M Trovato
Imaging workup of patients referred for elective assessment of chest disease requires an articulated approach: Imaging is asked for achieving timely diagnosis. The concurrent or subsequent use of thoracic ultrasound (TUS) with conventional (chest X-rays-) and more advanced imaging procedures (computed tomography and magnetic resonance imaging) implies advantages, limitations and actual problems. Indeed, despite TUS may provide useful imaging of pleura, lung and heart disease, emergency scenarios are currently the most warranted field of application of TUS: Pleural effusion, pneumothorax, lung consolidation...
September 28, 2016: World Journal of Radiology
https://www.readbyqxmd.com/read/27711720/fabrication-of-rgd-conjugated-gd-oh-3-eu-nanorods-with-enhancement-of-magnetic-resonance-luminescence-imaging-and-in-vivo-tumor-targeting
#17
Bianyun Cai, Zhongbing Huang, Zhi Wu, Lei Wang, Guangfu Yin, Fabao Gao
The development of multimodal probes with magnetic resonance imaging (MRI) and intraoperative fluorescence imaging is the most challenging task in the field of tumor diagnosis. Herein, a simple one-pot hydrothermal method is used to prepare Eu-doped Gd(OH)3 nanorods (Gd(OH)3:Eu NRs) with good fluorescence and the longitudinal relaxivity r1 value of 4.78 (Gd mM s(-1)). After dual-functionalized maleimide-polyethylene glycol-succinimide (Mal-PEG-NHS) macromolecules are coated on the surface of Gd(OH)3:Eu NRs (PEG-NRs), the results of a lower degradation ratio in newborn calf serum (NCS), reactive oxygen species (ROS) generation in L929 cells and the hemolytic rate of PEG-NRs show their good cyto-compatibility and longer blood circulation time...
September 13, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/27695498/magnetic-resonance-imaging-of-neonates-in-the-magnetic-resonance-compatible-incubator
#18
Monika Bekiesińska-Figatowska, Ewa Helwich, Magdalena Rutkowska, Joanna Stankiewicz, Iwona Terczyńska
INTRODUCTION: The authors present the first experience in neonatal magnetic resonance imaging (MRI) examinations using an MR compatible incubator (INC) at the Institute of Mother and Child. MATERIAL AND METHODS: Forty-nine examinations of 47 newborns (20 girls, 27 boys) were performed using the GE Signa HDxt 1.5T system and INC Nomag IC 1.5. Demographic data, anesthetic methods and MRI findings in the INC in comparison with previously performed imaging were analyzed...
October 1, 2016: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/27686886/neuroprotective-effects-of-cannabidiol-in-hypoxic-ischemic-insult-the-therapeutic-window-in-newborn-mice
#19
Nagat Mohammed, Maria Ceprián, Laura Jimenez, M Ruth Pazos, Jose Martínez-Orgado
BACKGROUND: A relevant therapeutic time window (TTW) is an important criterion for considering the clinical relevance of a substance preventing newborn hypoxic-ischemic (HI) brain damage. OBJECTIVE: to test the TTW of the neuroprotective effects of cannabidol (CBD), a non-psychoactive cannabinoid in a model of newborn HI brain damage. METHOD: 9-10 day-old C57BL6 mice underwent a HI insult (10% oxygen for 90 min after left carotid artery electrocoagulation)...
September 27, 2016: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/27668206/fetal-neuroblastoma-ultrasonography-and-magnetic-resonance-imaging-findings-in-the-prenatal-and-postnatal-iv-s-stage
#20
Heron Werner, Pedro Daltro, Taisa Davaus, Edward Araujo Júnior
We report a case of a fetus with an ultrasonography diagnosis of a neuroblastoma during a routine third trimester fetal scan, which presented as a hyperechogenic nodule located above the right kidney. No other abnormalities were found in the ultrasonography scan; however, the follow-up ultrasonography during the 36th week of gestation revealed that the lesion had doubled in size. At the same time, magnetic resonance imaging demonstrated a round mass in the topography of the right adrenal gland with a low signal on T1-weighted images and slightly high signal on T2-weighted images, causing a slight inferior displacement of the kidney...
September 2016: Obstetrics & Gynecology Science
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