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Fetal mri

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https://www.readbyqxmd.com/read/27928674/cord-blood-tnf-%C3%AE-and-il-6-levels-as-diagnostic-indicators-of-brain-damage-in-neonates-with-non-asphyxia-fetal-distress
#1
Chunfang Tian, Liqin Cheng, Xiaoshan Gu
PURPOSE: We investigated prospectively cord blood TNF-α and IL-6 levels as diagnostic indicators of brain damage in neonates with non-asphyxia fetal distress. METHODS: Eighty neonates delivered by cesarean section from January 2013 to December 2014 were enrolled. Magnetic resonance imaging was conducted to determine brain damage. Neonates were assigned to a healthy control group (n = 30) or, with fetal distress, apportioned to groups with or without brain damage (n = 20 and 30, respectively)...
December 7, 2016: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/27926636/feasibility-and-outcomes-of-fetoscopic-tracheal-occlusion-for-severe-left-diaphragmatic-hernia
#2
Michael A Belfort, Oluyinka O Olutoye, Darrell L Cass, Olutoyin A Olutoye, Christopher I Cassady, Amy R Mehollin-Ray, Alireza A Shamshiraz, Stephanie M Cruz, Timothy C Lee, David G Mann, Jimmy E Espinoza, Stephen E Welty, Caraciolo J Fernandes, Rodrigo R Ruano
OBJECTIVE: To evaluate feasibility and initial outcomes of fetoscopic tracheal occlusion for severe diaphragmatic hernia compared with a historical cohort who had not received fetal tracheal occlusion. METHODS: Outcomes in a prospective observational cohort who underwent fetoscopic tracheal occlusion for severe fetal left diaphragmatic hernia without associated anomalies were compared with our historical nontreated cohort of matched fetuses of similar severity. Fetuses were classified using the same ultrasonography and magnetic resonance imaging methodology-prospectively in the fetoscopic tracheal occlusion group and retrospectively in the historical nontreated cohort...
December 2, 2016: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27909773/magnetic-resonance-imaging-of-fetal-pelvic-cysts
#3
REVIEW
Styliani Archontaki, Yvan Vial, Sylviane Hanquinet, Reto Meuli, Leonor Alamo
The detection of fetal anomalies has improved in the last years as a result of the generalization of ultrasound pregnancy screening exams. The presence of a cystic imaging in the fetal pelvis is a relatively common finding, which can correspond to a real congenital cystic lesion or result from the anomalous liquid accumulation in a whole pelvic organ, mainly the urinary bladder, the uterus, or the vagina. In selected cases with poor prognosis and/or inconclusive echographic findings, magnetic resonance may bring additional information in terms of the characterization, anatomical location, and real extension of the pathology...
December 1, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27905410/association-between-preterm-brain-injury-and-exposure-to-chorioamnionitis-during-fetal-life
#4
Devasuda Anblagan, Rozalia Pataky, Margaret J Evans, Emma J Telford, Ahmed Serag, Sarah Sparrow, Chinthika Piyasena, Scott I Semple, Alastair Graham Wilkinson, Mark E Bastin, James P Boardman
Preterm infants are susceptible to inflammation-induced white matter injury but the exposures that lead to this are uncertain. Histologic chorioamnionitis (HCA) reflects intrauterine inflammation, can trigger a fetal inflammatory response, and is closely associated with premature birth. In a cohort of 90 preterm infants with detailed placental histology and neonatal brain magnetic resonance imaging (MRI) data at term equivalent age, we used Tract-based Spatial Statistics (TBSS) to perform voxel-wise statistical comparison of fractional anisotropy (FA) data and computational morphometry analysis to compute the volumes of whole brain, tissue compartments and cerebrospinal fluid, to test the hypothesis that HCA is an independent antenatal risk factor for preterm brain injury...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27887658/parameter-set-for-computer-assisted-texture-analysis-of-fetal-brain
#5
Hugues Gentillon, Ludomir Stefańczyk, Michał Strzelecki, Maria Respondek-Liberska
BACKGROUND: Magnetic resonance data were collected from a diverse population of gravid women to objectively compare the quality of 1.5-tesla (1.5 T) versus 3-T magnetic resonance imaging of the developing human brain. MaZda and B11 computational-visual cognition tools were used to process 2D images. We proposed a wavelet-based parameter and two novel histogram-based parameters for Fisher texture analysis in three-dimensional space. RESULTS: Wavenhl, focus index, and dispersion index revealed better quality for 3 T...
November 25, 2016: BMC Research Notes
https://www.readbyqxmd.com/read/27885428/normative-biometry-of-the-fetal-brain-using-magnetic-resonance-imaging
#6
Vanessa Kyriakopoulou, Deniz Vatansever, Alice Davidson, Prachi Patkee, Samia Elkommos, Andrew Chew, Miriam Martinez-Biarge, Bibbi Hagberg, Mellisa Damodaram, Joanna Allsop, Matt Fox, Joseph V Hajnal, Mary A Rutherford
The fetal brain shows accelerated growth in the latter half of gestation, and these changes can be captured by 2D and 3D biometry measurements. The aim of this study was to quantify brain growth in normal fetuses using Magnetic Resonance Imaging (MRI) and to produce reference biometry data and a freely available centile calculator ( https://www.developingbrain.co.uk/fetalcentiles/ ). A total of 127 MRI examinations (1.5 T) of fetuses with a normal brain appearance (21-38 gestational weeks) were included in this study...
November 24, 2016: Brain Structure & Function
https://www.readbyqxmd.com/read/27880967/early-prenatal-mri-of-cervical-abortive-myelocystocele-case-report-and-review-of-the-literature
#7
Giacomo Talenti, Carlo Giussani, Cecilia Parazzini, Giana Izzo, Francesco Canonico, Patrizia Vergani, Andrea Righini
Cervical abortive myelocistocele is a very rare congenital malformation. In this case report, we describe the prenatal magnetic resonance imaging (MRI) of such entity in a 20-week gestational age fetus, whose imaging features showed to be different from the only other previous prenatal report. We underscored the value of fetal MR for counseling and prognosis, especially when assessing the integrity of the spinal cord.
November 23, 2016: Neuropediatrics
https://www.readbyqxmd.com/read/27845691/non-invasive-evaluation-of-placental-blood-flow-lessons-from-animal-models
#8
Eve Mourier, Anne Tarrade, Jie Duan, Christophe Richard, Charline Bertholdt, Marine Beaumont, Olivier Morel, Pascale Chavatte-Palmer
In human obstetrics, placental vascularisation impairment is frequent as well as linked to severe pathological events (preeclampsia and intra-uterine growth restriction) and there is a need for reliable methods allowing non-invasive evaluation of placental blood flow. Uteroplacental vascularisation is complex and animal models are essential for the technical development and safety assessment of these imaging tools for human clinical use but these techniques can also be applied in the veterinary context. This paper reviews how ultrasound based imaging methods such as 2D and 3D Doppler can provide valuable insight for the exploration of placental blood flow both in humans and animals and how new approaches such as the use of ultrasound contrast agents or ultrafast Doppler may allow to discriminate between maternal (non-pulsatile) and fetal (pulsatile) blood flow in the placenta...
November 14, 2016: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/27828868/prenatal-diagnosis-and-genetic-discoveries-of-an-intracranial-mixed-neuronal-glial-tumor-a-case-report-and-literature-review
#9
Lijuan Sun, Qingqing Wu, Yan Pei, Jinghua Li, Jintang Ye, Wenxue Zhi, Yan Liu, Puqing Zhang
BACKGROUND: Congenital intracranial tumors as a group are quite rare, representing only 0.5% to 1.5% of all pediatric brain neoplasms. CASE REPORT: We reported a case of congenital mixed neuronal-glial tumor detected by ultrasound at 30 weeks of gestation. It showed that the tumor was 2.5 × 2.3 × 2.1 cm in size, located in the sellar region, regular shape, and slightly heterogeneous solid mass with a little cystic component. No color flow was present inside the tumor, but the peripheral encirclement by arterial circle of Willis...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27825537/functional-connectivity-of-the-human-brain-in-utero
#10
REVIEW
Marion I van den Heuvel, Moriah E Thomason
The brain is subject to dramatic developmental processes during the prenatal period. Nevertheless, information about the development of functional brain networks during gestation is scarce. Until recently it has not been possible to probe function in the living human fetal brain. Advances in functional MRI have changed the paradigm, making it possible to measure spontaneous activity in the fetal brain and to cross-correlate functional signals to attain information about neural connectional architecture across human gestation...
December 2016: Trends in Cognitive Sciences
https://www.readbyqxmd.com/read/27821206/the-neurodevelopmental-implications-of-hypoplastic-left-heart-syndrome-in-the-fetus
#11
David F A Lloyd, Mary A Rutherford, John M Simpson, Reza Razavi
As survival after cardiac surgery continues to improve, an increasing number of patients with hypoplastic left heart syndrome are reaching school age and beyond, with growing recognition of the wide range of neurodevelopmental challenges many survivors face. Improvements in fetal detection rates, coupled with advances in fetal ultrasound and MRI imaging, are contributing to a growing body of evidence that abnormal brain architecture is in fact present before birth in hypoplastic left heart syndrome patients, rather than being solely attributable to postnatal factors...
November 8, 2016: Cardiology in the Young
https://www.readbyqxmd.com/read/27818540/applicability-of-three-dimensional-imaging-techniques-in-fetal-medicine
#12
Heron Werner Júnior, Jorge Lopes Dos Santos, Simone Belmonte, Gerson Ribeiro, Pedro Daltro, Emerson Leandro Gasparetto, Edson Marchiori
OBJECTIVE: To generate physical models of fetuses from images obtained with three-dimensional ultrasound (3D-US), magnetic resonance imaging (MRI), and, occasionally, computed tomography (CT), in order to guide additive manufacturing technology. MATERIALS AND METHODS: We used 3D-US images of 31 pregnant women, including 5 who were carrying twins. If abnormalities were detected by 3D-US, both MRI and in some cases CT scans were then immediately performed. The images were then exported to a workstation in DICOM format...
September 2016: Radiologia Brasileira
https://www.readbyqxmd.com/read/27818357/the-role-of-neuropathological-markers-in-the-interpretation-of-neuropsychiatric-disorders-focus-on-fetal-and-perinatal-programming
#13
REVIEW
Fanni Daniela, Gerosa Clara, Rais Monica, Ravarino Alberto, Van Eyken Peter, Fanos Vassilios, Faa Gavino
The study of neuropathological markers in patients affected by mental/psychiatric disorders is relevant for the comprehension of the pathogenesis and the correlation with the clinical symptomatology. The neuropathology of Alzheimer's disease (AD) recognizes intraneuronal and extracellular neurofibrillary formation responsible for neuronal degeneration. Immunohistochemical studies discovered many interesting results for a better interpretation of the AD pathogenesis, while the "metal hypothesis" supports that metal ions might differentially influence the formation of amyloid aggregates...
November 3, 2016: Neuroscience Letters
https://www.readbyqxmd.com/read/27809626/prenatal-diagnosis-of-congenital-upper-limb-differences-a-current-concept-review
#14
Hamza M Alrabai, Alex Farr, Dieter Bettelheim, Myriam Weber, Sebastian Farr
Congenital upper limb differences are frequently associated with complex syndromes. Ultrasonography is considered the first-line diagnostic modality, and fetal MRI can be useful to further evaluate ill-defined areas. Genetic and non-invasive prenatal testing help to identify the underlying genetic disorder. The diagnostic assessment is a multidisciplinary task that should involve early prenatal consultations with specialists involved in case management and treatment planning. Obstetricians, geneticists, radiologists, psychologists, and dedicated surgeons are needed to provide good parental education, prenatal and postnatal care, and successful outcomes...
November 3, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27805787/cerebral-haemodynamic-response-to-somatosensory-stimulation-in-near-term-fetal-sheep
#15
S Nakamura, D W Walker, F Y Wong
Functional hyperaemia induced by a localised increase in neuronal activity has been suggested to occur in the fetal brain from positive blood oxygen level-dependent (BOLD) signal recorded by functional magnetic resonance imaging (fMRI) following acoustic stimulation. To study the effect of somatosensory input on local cerebral perfusion we used Near-infrared spectroscopy (NIRS) in anaesthetized, partially exteriorized fetal sheep where the median nerve was stimulated with trains of pulses (2 ms, 3.3 Hz) for durations of 1...
November 2, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27801896/alterations-in-amygdala-prefrontal-circuits-in-infants-exposed-to-prenatal-maternal-depression
#16
J Posner, J Cha, A K Roy, B S Peterson, R Bansal, H C Gustafsson, E Raffanello, J Gingrich, C Monk
Prenatal exposure to maternal depression is common and puts offspring at risk for developing a range of neuropsychiatric disorders. Despite its prevalence and adverse associations, neurobiological processes by which prenatal maternal depression (PMD) confers risk remain poorly understood. Maternal mood and fetal behavior were assessed between 34 and 37 gestational weeks. Using resting-state functional magnetic resonance imaging (fMRI) and diffusion MRI, we examined functional and structural connectivity within amygdala-prefrontal circuits in 64 infants (mean age=5...
November 1, 2016: Translational Psychiatry
https://www.readbyqxmd.com/read/27799276/complex-trajectories-of-brain-development-in-the-healthy-human-fetus
#17
Nickie N Andescavage, Adre du Plessis, Robert McCarter, Ahmed Serag, Iordanis Evangelou, Gilbert Vezina, Richard Robertson, Catherine Limperopoulos
This study characterizes global and hemispheric brain growth in healthy human fetuses during the second half of pregnancy using three-dimensional MRI techniques. We studied 166 healthy fetuses that underwent MRI between 18 and 39 completed weeks gestation. We created three-dimensional high-resolution reconstructions of the brain and calculated volumes for left and right cortical gray matter (CGM), fetal white matter (FWM), deep subcortical structures (DSS), and the cerebellum. We calculated the rate of growth for each tissue class according to gestational age and described patterns of hemispheric growth...
October 31, 2016: Cerebral Cortex
https://www.readbyqxmd.com/read/27798935/effects-of-maternal-valium-administration-on-fetal-mri-motion-artifact-a-comparison-study-at-high-altitude
#18
Mariana L Meyers, David M Mirsky, Kimberly A Dannull, Suhong Tong, Timothy M Crombleholme
PURPOSE: Fetal MRI is performed without sedation. In cases of maternal claustrophobia or when reduction of fetal motion is critical, benzodiazepines may help. The purpose of this study was to evaluate the effects of low-dose benzodiazepine on fetal motion MRI and its effect on maternal oxygen levels at higher elevation. METHODS: A total of 131 fetal MRI scans performed from March 2012 through December 2013 were studied. Nineteen of the cases were performed following Valium administration...
November 1, 2016: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/27790130/a-case-of-hydranencephaly-in-which-ophthalmic-examinations-were-performed
#19
Shohei Eda, Tomoko Terai, Yuko Nishikawa, Masahiro Tonari, Teruyo Kida, Hidehiro Oku, Jun Sugasawa, Shuichi Shimakawa, Masashi Hasegawa, Tohru Ogihara, Tsunehiko Ikeda
PURPOSE: We performed ophthalmic examinations, including optical coherence tomography (OCT), on a case diagnosed with hydranencephaly. CASE REPORT: This case involved a female infant born at the gestational age of 35 weeks and 4 days, with the birth weight of 2,152 g, who was one of monochorionic diamniotic twins, and the identical twin died in utero at the gestational age of 24 weeks. After that, examination by fetal echo indicated that she had microcephaly and ventriculomegaly...
September 2016: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/27788773/maternal-choline-supplementation-in-a-sheep-model-of-first-trimester-binge-alcohol-fails-to-protect-against-brain-volume-reductions-in-peripubertal-lambs
#20
Sharla M Birch, Mark W Lenox, Joe N Kornegay, Beatriz Paniagua, Martin A Styner, Charles R Goodlett, Tim A Cudd, Shannon E Washburn
Fetal alcohol spectrum disorder (FASD) is a leading potentially preventable birth defect. Poor nutrition may contribute to adverse developmental outcomes of prenatal alcohol exposure, and supplementation of essential micronutrients such as choline has shown benefit in rodent models. The sheep model of first-trimester binge alcohol exposure was used in this study to model the dose of maternal choline supplementation used in an ongoing prospective clinical trial involving pregnancies at risk for FASD. Primary outcome measures including volumetrics of the whole brain, cerebellum, and pituitary derived from magnetic resonance imaging (MRI) in 6-month-old lambs, testing the hypothesis that alcohol-exposed lambs would have brain volume reductions that would be ameliorated by maternal choline supplementation...
September 2016: Alcohol
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