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Structural mri

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https://www.readbyqxmd.com/read/29244803/changes-in-brain-morphology-and-microstructure-in-relation-to-early-brain-activity-in-extremely-preterm-infants
#1
Maria Luisa Tataranno, Nathalie H P Claessens, Pim Moeskops, Mona C Toet, Karina J Kersbergen, Giuseppe Buonocore, Ivana Išgum, Alexander Leemans, Serena Counsell, Floris Groenendaal, Linda S de Vries, Manon J N L Benders
OBJECTIVE: To investigate the relation of early brain activity with structural (growth of the cortex and cerebellum) and white matter microstructural brain development. METHODS: 33 preterm neonates (gestational age 26±1 weeks) without major brain abnormalities were continuously monitored with electroencephalography (EEG) during the first 48 h of life. Rate of spontaneous activity transients per minute (SAT rate) and interSAT interval (ISI) in seconds per minute were calculated...
December 15, 2017: Pediatric Research
https://www.readbyqxmd.com/read/29244020/association-between-structural-and-functional-brain-alterations-in-drug-free-patients-with-schizophrenia-a-multimodal-meta-analysis
#2
Xin Gao, Wenjing Zhang, Li Yao, Yuan Xiao, Lu Liu, Jieke Liu, Siyi Li, Bo Tao, Chandan Shah, Qiyong Gong, John A Sweeney, Su Lui
BACKGROUND: Neuroimaging studies have shown both structural and functional abnormalities in patients with schizophrenia. Recently, studies have begun to explore the association between structural and functional grey matter abnormalities. By conducting a meta-analysis on morphometric and functional imaging studies of grey matter alterations in drug-free patients, the present study aims to examine the degree of overlap between brain regions with anatomic and functional changes in patients with schizophrenia...
December 15, 2017: Journal of Psychiatry & Neuroscience: JPN
https://www.readbyqxmd.com/read/29243527/the-neural-correlates-of-negative-symptoms-in-schizophrenia-examples-from-mri-literature
#3
Lynn Mørch-Johnsen, Ingrid Agartz, Jimmy Jensen
Negative symptoms of schizophrenia have a negative impact on psychosocial functioning and disease outcome. It is therefore important to investigate the pathophysiology underlying negative symptoms as this may aid the development of better treatment. In the current article, examples from studies investigating neural correlates of negative symptoms in schizophrenia are given. Investigations using both structural and functional magnetic resonance imaging are presented at different levels of symptomatology descriptions, from the more heterogenous construct of negative symptoms to more single discrete symptoms...
January 2018: Clinical EEG and Neuroscience: Official Journal of the EEG and Clinical Neuroscience Society (ENCS)
https://www.readbyqxmd.com/read/29242734/images-from-18f-dopa-scan-in-congenital-hyperinsulinism-not-always-a-clue-for-diagnosis
#4
Evelina Maines, Luca Giacomello, Mirko D'Onofrio, Matteo Salgarello, Rossella Gaudino, Laura Baggio, Andrea Bordugo
Congenital hyperinsulinism (CHI) is the most common cause of persistent hypoglycaemia in childhood (Horm Res 70:65-72, 2008; J Clin Endocr Metab 93:869-875, 2008). 18-Fluoro-L-dihydroxy-phenylalanine (18F-DOPA) positron emission tomography (PET) can detect areas of increased activity in the pancreas and may differentiate focal from diffuse CHI (J Clin Endocr Metab 93:869-875, 2008; Radiology 253:216-222, 2009). We here report the case of a girl who complained of recurrent episodes of severe hypoglycaemia despite previous partial pancreatectomy...
December 2017: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29240567/theoretical-evaluation-and-experimental-validation-of-localized-therapeutic-hypothermia-application-to-preserve-residual-hearing-after-cochlear-implantation
#5
Ilmar Tamames, Curtis King, Chin-Yuh Huang, Fred F Telischi, Michael E Hoffer, Suhrud M Rajguru
OBJECTIVES: Cochlear implantation surgery has been shown to result in trauma to inner ear sensory structures, resulting in loss of residual hearing. Localized therapeutic hypothermia has been shown in clinical care to be a neuroprotective intervention. Previously, we have shown in an experimental model that localized hypothermia protects cochlear hair cells and residual hearing function against surgical and cochlear implantation trauma. Using experimental temperature measurements carried out in human cadaver temporal bones and a finite element model of the inner ear, the present study examined the temperature distribution of a custom-designed hypothermia delivery system in the human inner ear organs...
December 13, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/29240339/traumatic-hip-dislocation-in-pediatric-patients
#6
Antti Stenroos, Topi Laaksonen, Yrjänä Nietosvaara
Traumatic hip dislocations constitute approximately 5% of all pediatric dislocations and typically result from high-energy trauma. However, pediatric hip dislocations can also occur as a result of minor energy due to flexibility of the joint structures of the immature hip. Children with a posteriorly dislocated hip present with the injured hip in flexion, adduction and internal rotation. Spontaneous relocation of hip dislocation is frequent and a thorough physical examination of the whole lower extremity is always required to reduce the chance of missing hip dislocation/subluxation...
2017: Duodecim; Lääketieteellinen Aikakauskirja
https://www.readbyqxmd.com/read/29239789/anterior-cingulate-volume-predicts-response-to-psychotherapy-and-functional-connectivity-with-the-inferior-parietal-cortex-in-major-depressive-disorder
#7
Fabio Sambataro, Nadja Doerig, Jürgen Hänggi, Robert Christian Wolf, Janis Brakowski, Martin Grosse Holtforth, Erich Seifritz, Simona Spinelli
In major depressive disorder (MDD), the anterior cingulate cortex (ACC) has been associated with clinical outcome as well as with antidepressant treatment response. Nonetheless, the association between individual differences in ACC structure and function and the response to cognitive behavioral therapy (CBT) is still unexplored. For this aim, twenty-five unmedicated patients with MDD were scanned with structural and resting state functional magnetic resonance imaging before the beginning of CBT treatment. ACC morphometry was correlated with clinical changes following psychotherapy...
November 24, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29239286/reduced-cortical-thickness-and-increased-gyrification-in-generalized-anxiety-disorder-a-3-t-mri-study
#8
Cinzia Molent, Eleonora Maggioni, Filippo Cecchetto, Marco Garzitto, Sara Piccin, Carolina Bonivento, Marta Maieron, Serena D'Agostini, Matteo Balestrieri, Giampaolo Perna, A Carlo Altamura, Paolo Brambilla
BACKGROUND: Although the study of the neuroanatomical correlates of generalized anxiety disorder (GAD) is gaining increasing interest, up to now the cortical anatomy of GAD patients has been poorly investigated and still no data on cortical gyrification are available. The aim of the present study is to quantitatively examine the cortical morphology in patients with GAD compared with healthy controls (HC) using magnetic resonance imaging (MRI). To the best of our knowledge, this is the first study analyzing the gyrification patterns in GAD...
December 14, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/29239239/depressive-disorders-in-patients-with-pharmaco-resistant-mesial-temporal-lobe-epilepsy
#9
Eleonora Borges Gonçalves, Tania Aparecida Marchiori de Oliveira Cardoso, Clarissa Lin Yasuda, Fernando Cendes
Objectives To assess depressive disorders in patients with mesial temporal lobe epilepsy (MTLE) refractory to medical treatment. Methods Adult patients with refractory MTLE completed two questionnaires (Mini International Neuropsychiatric Interview (MINI) and the Beck Depression Inventory (BDI) had a semi-structured psychiatric interview and a high resolution MRI scan. For complete neuropsychiatric diagnosis, as per International Classification of Diseases (ICD-10), the results were combined with clinical history and additional information from the patients' family...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/29238983/brain-volume-changes-in-hyposmic-patients-before-and-after-olfactory-training
#10
Janine Gellrich, Pengfei Han, Cedric Manesse, Amelie Betz, Anne Junghanns, Claudia Raue, Valentin A Schriever, Thomas Hummel
OBJECTIVES/HYPOTHESIS: Olfactory dysfunction is thought to be associated with reduced gray matter (GM) volume in olfactory-related brain areas. The aim of this study was to determine GM structural changes within olfactory-related regions of the brain in patients with smell loss due to upper respiratory tract infection (URTI) before and after olfactory rehabilitation. STUDY DESIGN: Prospective intervention case-control study. METHODS: Magnetic resonance imaging structural brain images were collected from 30 patients with smell loss due to URTI and 31 controls...
December 14, 2017: Laryngoscope
https://www.readbyqxmd.com/read/29238678/a-study-of-effect-of-consanguinity-on-cochlear-morphology-in-patients-with-congenital-bilateral-profound-sensorineural-hearing-loss
#11
Y Kavitha, K Sabarigirish, Upendra Kumar Joish, Sanjeev Saxena, Angshuman Dutta
Consanguinity has been considered as one of the risk factors predisposing to the development of congenital hearing loss. Effect of consanguinity on cochlear morphology has been subject of speculation, though many studies have provided insight into functional aspect of cochlea. This study was conducted to know the effect of consanguinity on cochlear morphology, if any. A prospective, observational study, including prelingually deaf children with bilateral profound sensorineural hearing loss who are registered as candidates for cochlear implantation at a tertiary care centre, was conducted...
December 2017: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/29238582/inferior-colliculus-syndrome-clinical-magnetic-resonance-microscopy-anatomic-analysis-on-a-7-t-system
#12
Ingrid L Kwee, Hitoshi Matsuzawa, Kazunori Nakada, Yukihiko Fujii, Tsutomu Nakada
We performed detailed structural analysis of a case of a unilateral lesion of the inferior colliculus using magnetic resonance microscopy on a 7 T system. A 36-year-old right-handed man had an intracerebral hemorrhage circumscribed to the right inferior colliculus. Following recovery from the acute phase, he had only residual left ear tinnitus and left trochlear palsy and no hearing loss. Microscopic imaging analysis on a 7 T magnetic resonance imaging system demonstrated a chronic lesion confined primarily to the right central nucleus of the inferior colliculus...
2017: SAGE Open Medical Case Reports
https://www.readbyqxmd.com/read/29238487/morphology-of-the-corpus-callosum-and-schizophrenia-a-case-control-study-in-kashan-iran
#13
Afshin Ahmadvand, Shahab Bagherzadeh Shahidi, Hamidreza Talari, Fatemeh Sadat Ghoreishi, Gholam Abbas Mousavi
Background: Corpus Callosum (CC) plays a significant role in hemispheric communication and in lateralized brain function and behaviors. Structural abnormalities in the corpus callosum of schizophrenic patients were reported. However, previous studies regarding the relationship between morphology of CC in patients with schizophrenia and healthy people are controversial. Objective: To evaluate the morphological differences of the CC between patients with chronic schizophrenia and healthy people and to examine the relationship between the characteristics of the CC and schizophrenia severity...
October 2017: Electronic Physician
https://www.readbyqxmd.com/read/29237474/dimethylarginines-in-patients-with-intracerebral-hemorrhage-association-with-outcome-hematoma-enlargement-and-edema
#14
Hans Worthmann, Na Li, Jens Martens-Lobenhoffer, Meike Dirks, Ramona Schuppner, Ralf Lichtinghagen, Jan T Kielstein, Peter Raab, Heinrich Lanfermann, Stefanie M Bode-Böger, Karin Weissenborn
BACKGROUND: Asymmetric dimethylarginine (ADMA)--the most potent endogenous NO-synthase inhibitor, has been regarded as mediator of endothelial dysfunction and oxidative stress. Considering experimental data, levels of ADMA and its structural isomer symmetric dimethylarginine (SDMA) might be elevated after intracerebral hemorrhage (ICH) and associated with clinical outcome and secondary brain injury. METHODS: Blood samples from 20 patients with acute ICH were taken at ≤ 24 h and 3 and 7 days after the event...
December 13, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29236984/longitudinal-association-between-brain-amyloid-beta-and-gait-in-the-mayo-clinic-study-of-aging
#15
Alexandra M V Wennberg, Timothy G Lesnick, Christopher G Schwarz, Rodolfo Savica, Clinton E Hagen, Rosebud O Roberts, David S Knopman, John H Hollman, Prashanthi Vemuri, Clifford R Jack, Ronald C Petersen, Michelle M Mielke
Background: The longitudinal association between cerebral amyloid-beta (Aβ) and change in gait, and whether this association is mediated by cortical thickness, has yet to be determined. Methods: We included 439 clinically normal (CN) participants, aged 50-69 years and enrolled in the Mayo Clinic Study of Aging with cerebral Aβ, cortical thickness, and gait measurements. Cerebral Aβ deposition was assessed by Pittsburgh Compound B (PiB)-PET in multiple regions of interest (ROIs) (i...
December 9, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/29236820/integrity-of-white-matter-structure-is-related-to-episodic-memory-performance-in-the-low-educated-elderly
#16
Elisa de Paula França Resende, Fernanda Freire Tovar-Moll, Fernanda Meireles Ferreira, Ivanei Bramati, Leonardo Cruz de Souza, Karoline Carvalho Carmona, Henrique Cerqueira Guimarães, Viviane Amaral Carvalho, Maira Tonidandel Barbosa, Paulo Caramelli
The low-educated elderly are a vulnerable population in whom studying the role of white matter integrity on memory may provide insights for understanding how memory declines with aging and disease. METHODS: Thirty-one participants (22 women), 23 cognitively healthy and eight with cognitive impairment-no dementia, aged 80.4 ± 3.8 years, with 2.2 ± 1.9 years of education, underwent an MRI scan with diffusion tensor imaging (DTI) acquisition. We verified if there were correlations between the performance on the Brief Cognitive Screening Battery (BCSB) and the Rey Auditory Verbal Learning Test (RAVLT) with DTI parameters...
November 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/29236772/age-related-reduction-of-adaptive-brain-response-during-semantic-integration-is-associated-with-gray-matter-reduction
#17
Zude Zhu, Fengjun Yang, Dongning Li, Lianjun Zhou, Ying Liu, Ying Zhang, Xuezhi Chen
While aging is associated with increased knowledge, it is also associated with decreased semantic integration. To investigate brain activation changes during semantic integration, a sample of forty-eight 25-75 year-old adults read sentences with high cloze (HC) and low cloze (LC) probability while functional magnetic resonance imaging was conducted. Significant age-related reduction of cloze effect (LC vs. HC) was found in several regions, especially the left middle frontal gyrus (MFG) and right inferior frontal gyrus (IFG), which play an important role in semantic integration...
2017: PloS One
https://www.readbyqxmd.com/read/29236647/assessing-the-marks-of-change-how-psychotherapy-alters-the-brain-structure-in-women-with-borderline-personality-disorder
#18
Falk Mancke, Ruth Schmitt, Dorina Winter, Inga Niedtfeld, Sabine C Herpertz, Christian Schmahl
BACKGROUND: There is increasing evidence that psychotherapy can alter the function of the brain of patients with borderline personality disorder (BPD). However, it is not known whether psychotherapy can also modify the brain structure of patients with BPD. METHODS: We used structural MRI data of female patients with BPD before and after participation in 12 weeks of residential dialectical behavioural therapy (DBT) and compared them to data from female patients with BPD who received treatment as usual (TAU)...
December 13, 2017: Journal of Psychiatry & Neuroscience: JPN
https://www.readbyqxmd.com/read/29236275/multidisciplinary-management-of-a-giant-cervico-mediastinal-liposarcoma-a-case-report-and-literature-review
#19
Andrea Galli, Leone Giordano, Piergiorgio Muriana, Alessandro Bandiera, Giampiero Negri, Piero Zannini, Mario Bussi
Liposarcomas are rare mesenchymal tumors that usually develop in lower extremities or retroperitoneum; cervico-mediastinal presentation is quite uncommon. These neoplasms are commonly diagnosed at a late stage because they remain asymptomatic until nearby structures are compressed. This makes radical excision particularly challenging. To date, alternative chemoradiotherapy protocols have not yet been standardized. We report a case of a 55-year-old man with a right laterocervical mass and without substantial symptoms...
December 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/29234822/-acute-vestibular-syndrome-clinical-examination-outperforms-mri-in-the-detection-of-central-lesions
#20
REVIEW
F Thömke
A significant number of patients who seek medical treatment in an emergency department because of vertigo or dizziness, suffer from acute vestibular syndrome. This is characterized by sustained vertigo, horizontal or horizontal rotatory jerk nystagmus, and unsteady stance and gait. In the acute situation it is crucial to differentiate patients with a peripheral vestibular disorder from those with a central disease. A number of recent studies have shown that a structured clinical examination enables a reliable differential diagnosis of central or peripheral disorders...
December 12, 2017: Der Nervenarzt
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