Neuroimaging Techniques
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. Quantitative MRI data in Multiple Sclerosis patients: a pattern recognition study
Abstract Introduction Multiple Sclerosis (MS) is a neurodegenerative disease characterized by inflammatory demyelination in the central nervous system. Quantitative Magnetic Resonance Imaging (qMRI) enables a detailed characterization of brain tissue, but generates a large number of numerical results. In this study, we elucidated the main qMRI techniques a
Res. Biomed. Eng.. Publicado em: 28/05/2018
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2. The link between cardiovascular risk, Alzheimer's disease, and mild cognitive impairment: support from recent functional neuroimaging studies
Objective: To review functional neuroimaging studies about the relationship between cardiovascular risk factors (CVRFs), Alzheimer's disease (AD), and mild cognitive impairment (MCI). Methods: We performed a comprehensive literature search to identify articles in the neuroimaging field addressing CVRF in AD and MCI. We included studies that used positron em
Rev. Bras. Psiquiatr.. Publicado em: 10/06/2014
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3. The impacts of cognitive-behavioral therapy on the treatment of phobic disorders measured by functional neuroimaging techniques: a systematic review
Objective: Functional neuroimaging techniques represent fundamental tools in the context of translational research integrating neurobiology, psychopathology, neuropsychology, and therapeutics. In addition, cognitive-behavioral therapy (CBT) has proven its efficacy in the treatment of anxiety disorders and may be useful in phobias. The literature has shown t
Rev. Bras. Psiquiatr.. Publicado em: 2013-09
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4. Quantificação da lesão neuronal e mielínica na Esclerose Lateral Amiotrófica através da ressonância magnética / Quantification of myelin and neuronal damage in ALS using magnetic resonance imaging.
Introdução: A Esclerose Lateral Amiotrófica (ELA) é uma doença degenerativa e progressiva que afeta neurônios motores da medula espinhal, tronco cerebral e/ ou córtex motor. Sua manifestação clínica é bastante variada, sua etiologia desconhecida e a progressão, fatal. Não existe ainda um tratamento curativo para a ELA, porém alguns medicamentos
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/05/2012
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5. Relação entre as alterações estruturais do cerebelo e os transtornos psiquiátricos / Relationship between structural cerebellar changes and psychiatric disorders
Classically it was attributed to the cerebellum only functions regarding the control of movements, posture and balance. However, several studies have shown that the cerebellum also participates in the control of cognition, emotional processing and behavior through direct and indirect pathways. New evidence suggests that the cerebellum has structural and func
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/06/2011
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6. Inclusão de MRI e informação multigrid a priori para inferência bayesiana de fontes de M/EEG / MRI image and multigrid a priori information for bayesian M/EEG source localization
Functional Neuroimaging has evolved in the last few decades with the introduction of techniques such as Positron Emission Tomography or PET and Functional Magnetic Ressonance Image or fMRI [Belliveau et al., 1991]. These allow observing brain activity with a resolution of a few millimeters and, due to the nature of the signal, a time resolution of the order
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/04/2011
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7. Current methodological designs of fMRI studies of panic disorder: can data be compared?
Panic disorder (PD) is a pluridimensional condition that leads to psychological suffering. Due to advances in neuroimaging techniques, important contributions have been made in the understanding of the neurobiological basis of PD. However, because of diverging research designs and protocols, more conclusive data concerning the neurocircuitry of PD remain dif
Psychology & Neuroscience. Publicado em: 2011-12
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8. Neuroimaging in Alzheimer's disease: current role in clinical practice and potential future applications
'Alzheimer's disease is the most common cause of dementia and its prevalence is expected to increase in the coming years. Therefore, accurate diagnosis is crucial for patients, clinicians and researchers. Neuroimaging techniques have provided invaluable information about Alzheimer's disease and, owing to recent advances, these methods will have an increasing
Clinics. Publicado em: 2011
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9. Relação dos pontos-chave cirúrgicos no crânio com áreas eloquëntes detectadas por ressonância magnética funcional / Relation of surgical key-points in skull with eloquent areas detected by functional magnetic resonance
Neuroimaging studies have a pivotal role in pre-surgical assessment of patients with brain lesions. Magnetic Resonance Imaging (MRI) and Computerized Tomography (CT) are established techniques providing anatomic information of the lesion and surrounding areas. Functional MRI (fMRI) is a recent method applied to probe brain function via hemodynamic response o
Publicado em: 2010
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10. Hemispheric specialization for communicative processing: neuroimaging data on the role of the right hemisphere
Neuropsychology has traditionally studied language emphasizing the exclusive control of the left hemisphere of the brain over this process. With the growing development of this area in psychology and the availability of neuroimaging techniques, a critical analysis of the traditional concept of cerebral dominance for language and of the bases of the neurobiol
Psychology & Neuroscience. Publicado em: 2009-06
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11. Desenvolvimento de metodos opticos para o estudo do acoplamento neuro-vascular-metabolico intrinseco a dinamica cerebral / Development of optical methods to the study of neuro-metabolic-vascular coupling underlying cerebral dynamics
Task-associated neuronal activity leads to a complex chain of biological events within the brain. The increased energetics gives rise to elevated glucose and oxygen consumption in the tissue. Biochemical and neuronal factors induce changes in blood vessels and variations in blood ow, volume and oxygenation. Although it has been extensively investigated, this
Publicado em: 2009
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12. Estudo longitudinal de pacientes com doença de Machado-Joseph : correlação clinica e de neuroimagem / Longitudinal study in patients with Machado-Joseph disease : clinical and neuroimaging correlation
Machado-Joseph disease or spinocerebellar ataxia type 3 (SCA3/MJD) is an autosomal dominant ataxia resulting from an expansion of a CAG triplet at the MDJ1 gene located on chromosome 14q. Clinically, it is characterized by cerebellar ataxia, peripheral neuropathy, pyramidal and extrapyramidal syndrome and ophthalmoplegia. The age of onset is variable and inv
Publicado em: 2009