Relevant bibliographies by topics / Neurology; Magnetic resonance imaging / Dissertations / Theses
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Dissertations / Theses on the topic 'Neurology; Magnetic resonance imaging'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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1

Wylie, Glenn Richard. "Priming and shifting of task set." Thesis, University of Oxford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301728.

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2

Rutherford, Mary. "Magnetic resonance imaging of hypoxic-ischaemic brain lesions in the term infant." Thesis, University of Bristol, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262817.

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3

Brooks, Jonathan Charles William. "Quantification of magnetic resonance spectra using imaging based techniques : application to the study of brain ageing." Thesis, University of Liverpool, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367141.

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4

Reddy, H. "Cortical re-organisation of plasticity : applying fMRI to study disease." Thesis, University of Oxford, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.365777.

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5

Petrovic, Aleksandar. "Connectivity driven registration of magnetic resonance images of the human brain." Thesis, University of Oxford, 2010. http://ora.ox.ac.uk/objects/uuid:fd95c6d4-06d2-41b4-b6f2-5cbd73cb83a9.

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Image registration methods underpin many analysis techniques in neuroimaging. They are essential in group studies when images of different individuals or different modalities need to be brought into a common reference frame. This thesis explores the potential of brain connectivity- driven alignment and develops surface registration techniques for magnetic resonance imaging (MRI), which is a noninvasive neuroimaging tool for probing function and structure of the human brain. The first part of this work develops a novel surface registration framework, based on free mesh deformations, which align
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6

Beckwith, Travis J. "A Magnetic Resonance Imaging Study of the Developmental Consequences of Childhood Lead Exposure in Adulthood." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1439309120.

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7

Okell, Thomas William. "Assessment of collateral blood flow in the brain using magnetic resonance imaging." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:7e63bcf2-22bf-49e5-81ec-1644217605ae.

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Collateral blood flow is the compensatory flow of blood to the tissue through secondary channels when the primary channel is compromised. It is of vital importance in cerebrovascular disease where collateral flow can maintain large regions of brain tissue which would otherwise have suffered ischaemic damage. Traditional x-ray based techniques for visualising collateral flow are invasive and carry risks to the patient. In this thesis novel magnetic resonance imaging techniques for performing vessel-selective labelling of brain feeding arteries are explored and developed to reveal the source and
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8

Riley, Amanda L. "Effectiveness of Fluorogold Bound Conjugate in Imaging Mice Neuroendocrine Circuits." Kent State University Honors College / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ksuhonors1587996298161636.

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9

Tziortzi, Andri. "Quantitative dopamine imaging in humans using magnetic resonance and positron emission tomography." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:26b8b4c2-0237-4c40-8c84-9ae818a0dabf.

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Dopamine is an important neurotransmitter that is involved in several human functions such as reward, cognition, emotions and movement. Abnormalities of the neurotransmitter itself, or the dopamine receptors through which it exerts its actions, contribute to a wide range of psychiatric and neurological disorders such as Parkinson’s disease and schizophrenia. Thus far, despite the great interest and extensive research, the exact role of dopamine and the causalities of dopamine related disorders are not fully understood. Here we have developed multimodal imaging methods, to investigate the relea
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10

Zamboni, Giovanna. "Structural and functional magnetic resonance imaging (MRI) in the prediction and characterization of mild cognitive impairment (MCI) and Alzheimer's disease (AD)." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:8cdd8320-1243-4f85-928c-b03fd4bd1201.

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The aim of the research presented in this thesis was to improve the characterisation of the changes in brain structure and function that occur at different stages of Alzheimer’s disease (AD) progression, from pre-symptomatic AD, to mild cognitive impairment (MCI), to clinically evident dementia, using magnetic resonance imaging (MRI) techniques. Baseline structural MRI data from a cohort of healthy older adults who were followed prospectively for ten years, during which time some developed MCI and some AD, were analysed. It was found that structural MRI could detect volume loss in medial-tempo
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11

Hoepfner, Erika Barba-Müller. "Morphologic brain changes induced by pregnancy. A longitudinal magnetic resonance imaging study." Doctoral thesis, Universitat Autònoma de Barcelona, 2015. http://hdl.handle.net/10803/319448.

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En los seres humanos, la supervivencia del infante depende de forma considerable de los esfuerzos de la madre y la calidad de su cuidado contribuirá significativamente al desarrollo neurobiológico, cognitivo y socio-emocional del niño (Shonkoff et al., 2012). Además, casi todas las mujeres experimentarán un embarazo a lo largo de su vida, lo cual es reconocido por predisponer a la madre a cierta vulnerabilidad mental (Brunton and Russell, 2008). Sin embargo, se sabe muy poco sobre los efectos del embarazo en el cerebro de la mujer. Cambios endocrinos menos extremos ocasionan modificaciones mo
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12

Cabezas, Grebol Mariano. "Atlas-based segmentation of multiple sclerosis lesions in magnetic resonance imaging." Doctoral thesis, Universitat de Girona, 2013. http://hdl.handle.net/10803/119608.

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This thesis deals with the segmentation of brain magnetic resonance imaging applied to multiple sclerosis patients. This disease is characterised by the presence of white matter lesions in this image modality. After a thorough analysis of the state-of-the-art on this topic, pointing out the importance of prior knowledge, and a subsequent review of atlas-based segmentation of brain imaging, we propose two different multiple sclerosis lesion segmentation pipelines based on the conclusions of these studies. The first one provides an initial tissue classification using a modified expectation-maxim
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13

Brown, Andrew Peter. "Imaging neuroinflammatory processes with USPIO-MRI." Thesis, University of Oxford, 2009. http://ora.ox.ac.uk/objects/uuid:aa1b5add-6a05-44ff-a270-5c31630f6577.

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This thesis examines the utility of USPIO-MRI to provide a tool of tracking macrophage recruitment to sites of neuroinflammation within the CNS. Recruited macrophages and microglia resident in CNS tissue play a key role in the pathophysiology of a number of neuroinflammatory diseases such as neuropathic pain and multiple sclerosis. Under activated conditions, microglia and macrophages will phagocytose invading cells and CNS debris. It has been shown that ultrasmall superparamagnetic particles of iron oxide (USPIO), such as Sinerem, injected systemically, are engulfed by macrophages, which in t
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14

Varsou, Ourania. "Neuroimaging of patients with acute focal neurological symptoms : investigating new functional and structural Magnetic Resonance Imaging measures." Thesis, University of Aberdeen, 2014. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=225771.

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15

Brown, Christopher A. "THE DEFAULT MODE NETWORK AND EXECUTIVE FUNCTION: INFLUENCE OF AGE, WHITE MATTER CONNECTIVITY, AND ALZHEIMER’S PATHOLOGY." UKnowledge, 2017. http://uknowledge.uky.edu/neurobio_etds/18.

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The default mode network (DMN) consists of a set of interconnected brain regions supporting autobiographical memory, our concept of the self, and the internal monologue. These processes must be maintained at all times and consume the highest amount of the brain’s energy during its baseline state. However, when faced with an active, externally-directed cognitive task, the DMN shows a small, but significant, decrease in activity. The reduction in DMN activity during the performance of an active, externally-directed task compared to a baseline state is termed task-induced deactivation (TID), whic
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16

Centeno, Soladana Maria. "Magnetic resonance imaging in epilepsy. Functional and structural imaging in frontal lobe epilepsy and language study in bilingual patients." Doctoral thesis, Universitat Autònoma de Barcelona, 2016. http://hdl.handle.net/10803/386529.

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Gracias al desarrollo de las técnicas de neuroimagen en las últimas décadas se han conseguido avances importantes en el conocimiento de la epilepsia y sus mecanismos; descubriéndose cuestiones calves que han modificado conceptos clásicos y generado nuevas hipótesis en este campo. En los trabajos que componen esta tesis doctoral se utiliza como herramienta común la resonancia magnética para investigar varios aspectos que comprenden desde la función cognitiva a aspectos estructurales. En concreto se han empleado técnicas de resonancia magnética funcional y análisis cuantitativo de imagen estruct
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17

Maynard, Lauren M. "Predictors of Epilepsy Severity in MRI-Identified Focal Cortical Dysplasia." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1458299543.

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18

Soria, Pastor Sara. "Patterns of cerebral gray and white matter alterations in preterm subjects by magnetic resonance imaging." Doctoral thesis, Universitat de Barcelona, 2009. http://hdl.handle.net/10803/2294.

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Preterm birth is frequently associated with an increased risk of neurodevelopmental difficulties and of cognitive, behavioural and emotional problems during childhood. The present thesis comprises two MRI studies that demonstrated patterns of cerebral gray matter (GM) and white matter (WM) alterations and their cognitive correlates in children and adolescents who were born preterm.<br/>Our first study provided evidence of the persistence of diffuse WM abnormalities in adolescents who were born very preterm, and underlines their high frequency. The individual voxel-based morphometry analysis ap
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19

Burman, Joachim. "Curing Multiple Sclerosis : How to do it and how to prove it." Doctoral thesis, Uppsala universitet, Neurologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-221888.

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Hematopoietic stem cell transplantation (HSCT) is a potentially curative treatment for multiple sclerosis (MS) with now more than 600 documented cases in the medical literature. Long-term remission can be achieved with this therapy, but when is it justified to claim that a patient is cured from MS? In attempt to answer this question, the outcome of the Swedish patients is described, mechanisms behind the therapeutic effect are discussed and new tools for demonstration of absence of disease have been developed. In Swedish patients treated with HSCT for aggressive MS, disease free survival was 6
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20

Zhu, Jingyun, and 朱婧芸. "Volumetric and advanced functional MR imaging in neuropsychiatric systemic lupus erythematosus (NPSLE)." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B47178966.

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 Neuropsychiatric systemic erythematosus (NPSLE) is a complicated complication of systemic erythematosus (SLE). Asian patients are associated with high prevalence of systemic disease and mortality It increases patients’ morbidity and mortality (Samanta et al., 1991). But the detailed pathology and pathogenesis are still remained unclear. Our study’s purpose is to use advanced functional imaging method, including diffusion tensor imaging (DTI) and magnetic resonance spectroscopy imaging (MRSI) to detect intracranial volumetry, functional and other metabolite changes in NPSLE patients. We rec
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21

Cerro, San Ildefonso Inés del. "Estudio clínico y de neuroimagen de la función noradrenérgica como indicador precoz de deterioro cognitivo." Doctoral thesis, Universitat de Barcelona, 2021. http://hdl.handle.net/10803/671473.

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Los trastornos neurocognitivos (TNC) son un grupo heterogéneo de entidades clínicas cuya característica principal es el deterioro de todas o algunas de las capacidades funcionales y cognitivas previamente adquiridas por el individuo. Entre ellos encontramos el TNC mayor, tener múltiples etiologías, su causa más común es la enfermedad de Alzheimer (EA). Las marcas neuropatológicas distintivas de esta patología son la acumulación de placas de proteína β-amiloide y la de proteína tau hiperfosforilada que forma, entre otros, ovillos neurofibrilares. El primer lugar en el que se han detectado cambi
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22

Valverde, Valverde Sergi. "Automated brain tissue segmentation of magnetic resonance images in multiple sclerosis." Doctoral thesis, Universitat de Girona, 2016. http://hdl.handle.net/10803/386468.

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L'objectiu principal d'aquesta tesi és el desenvolupament d'un nou mètode de segmentació totalment automàtic capaç de mesurar amb precisió el volum cerebral en imatges de pacients d'EM amb lesions. El mètode que hem proposat s'ha desenvolupat i implementat integrant no només la informació provinent de la intensitat dels vòxels, sinó a través de la incorporació d'atles morfològics i estructurals que guien la segmentació del teixit. Els vòxels candidats de ser lesions són estimats i processats abans de la segmentació del teixit utilitzant un algoritme de post-processat basat en la informació del
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23

Arrambide, García Georgina. "Study of diagnostic and prognostic clinical, biological, and magnetic resonance imaging markers at the time of a clinically isolated syndrome." Doctoral thesis, Universitat Autònoma de Barcelona, 2016. http://hdl.handle.net/10803/384610.

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En este trabajo estudiamos marcadores con valor diagnóstico o pronóstico en el momento de presentar un síndrome clínico aislado (CIS, del inglés clinically isolated syndrome). Dado que presentar un CIS representa un riesgo para desarrollar esclerosis múltiple (EM), se considera crucial identificar qué pacientes tendrán un segundo brote y determinar el grado de acumulación de discapacidad a medio y largo plazo. Por ello, aún se considera necesario identificar marcadores que representen los diferentes aspectos de esta enfermedad, especialmente si se demuestra su utilidad en la práctica clínica d
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24

Simoni, Michela. "Age-related white matter changes in patients with TIA and stroke : population-based study on aetiological and prognostic significance." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:d3e55744-5cc1-44e9-a33f-589abbc50c93.

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White matter changes (WMC) seen on CT and MRI brain scans of healthy subjects and of vascular or dementia patients are strongly associated with age. Their pathogenesis is still under debate, and associations with vascular risk factors have varied according to studies. Their prognostic meaning, both in the general population and in stroke patients, is also not completely established. I systematically reviewed the literature on prevalence and associations of WMC and then evaluated CT and MRI scans of the first 8 years of a population-based study of all strokes and TIA in Oxfordshire (OXVASC). In
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25

Flanagan, Shawn D. "Neurological Basis of Persistent Functional Deficits after Traumatic Musculoskeletal Injury." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1469031876.

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26

Kaukola, T. (Tuula). "Perinatal brain damage in very preterm infants:prenatal inflammation and neurologic outcome in children born term and preterm." Doctoral thesis, University of Oulu, 2005. http://urn.fi/urn:isbn:9514278402.

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Abstract Despite improvements in peri- and neonatal care and an increase in the overall survival of very preterm infants, the incidence of neurologic sequelae has remained high. The pathogenesis of many brain imaging findings, such as white matter damage, WMD, is poorly understood. The factors predisposing to brain damage differ between term and preterm infants. More detailed information is needed of how brain imaging correlates with neurodevelopmental impairment after the neonatal period. The present study investigated the pre- and perinatal factors leading to brain damage and their effects o
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27

Lee, Kuan Jin. "Fast magnetic resonance imaging." Thesis, University of Sheffield, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.397487.

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28

O'Neil, Shannon M. "Magnetic resonance imaging centers /." Online version of thesis, 1994. http://hdl.handle.net/1850/11916.

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29

Lu, Wenmiao. "Off-resonance correction in magnetic resonance imaging /." May be available electronically:, 2008. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

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30

Manners, David Neil. "Magnetic resonance imaging and magnetic resonance spectroscopy of skeletal muscle." Thesis, University of Oxford, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.269250.

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31

Petropoulos, Labros Spiridon. "Magnetic field issues in magnetic resonance imaging." Case Western Reserve University School of Graduate Studies / OhioLINK, 1993. http://rave.ohiolink.edu/etdc/view?acc_num=case1060710667.

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32

Campbell, Jennifer 1975. "Magnetic resonance diffusion tensor imaging." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=30809.

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Magnetic resonance imaging (MRI) can be used to image diffusion in liquids, such as water in brain structures. Molecular diffusion can be isotropic or anisotropic, depending on the fluid's environment, and can therefore be characterized by a scalar, D, or by a tensor, D, in the respective cases. For anisotropic environments, the eigenvector of D corresponding to the largest eigenvalue indicates the preferred direction of diffusion.<br>This thesis describes the design and implementation of diffusion tensor imaging on a clinical MRI system. An acquisition sequence was designed and post-processin
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33

Eichner, Cornelius. "Slice-Accelerated Magnetic Resonance Imaging." Doctoral thesis, Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-184944.

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This dissertation describes the development and implementation of advanced slice-accelerated (SMS) MRI methods for imaging blood perfusion and water diffusion in the human brain. Since its introduction in 1977, Echo-Planar Imaging (EPI) paved the way toward a detailed assessment of the structural and functional properties of the human brain. Currently, EPI is one of the most important MRI techniques for neuroscientific studies and clinical applications. Despite its high prevalence in modern medical imaging, EPI still suffers from sub-optimal time efficiency - especially when high isotropic res
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34

Lindsay, Alistair. "Magnetic resonance imaging of atherosclerosis." Thesis, University of Oxford, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.526491.

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35

Glover, Paul Martin. "High field magnetic resonance imaging." Thesis, University of Nottingham, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335575.

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36

Yoo, Seung-Schik 1970. "Adaptive functional magnetic resonance imaging." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/70893.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 2000.<br>Some research performed with the Harvard-M.I.T. Division of Health Sciences and Technology.<br>Includes bibliographical references (leaves 132-140).<br>Functional MRI (fMRI) detects the signal associated with neuronal activation, and has been widely used to map brain functions. Locations of neuronal activation are localized and distributed throughout the brain, however, conventional encoding methods based on k-space acquisition have limited spatial selectivity. To improve it, we propose an adaptive fM
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37

Harvey, Ian. "Magnetic resonance imaging in schizophrenia." Thesis, University of Edinburgh, 1991. http://hdl.handle.net/1842/19829.

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38

Yoshimaru, Eriko Suzanne. "Magnetic Resonance Imaging Techniques for Rodent Pulmonary Imaging." Diss., The University of Arizona, 2013. http://hdl.handle.net/10150/293388.

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Magnetic Resonance Imaging (MRI) is a safe and widely used diagnostic imaging method that allows in vivo observation of anatomy and characterization of tissues. MRI provides a method to monitor patients without invasive measures, making it suitable for both diagnostics and longitudinal monitoring of various pathologies. A notable example of this is the work carried out by the Alzheimer's Disease Neuroimaging Initiative (ADNI), which utilizes imaging, including multiple MRI techniques, to monitor disease progression in AD patients and evaluates treatment responses and prevention strategies.
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39

Sharkey-Toppen, Travis P. "Imaging Iron and Atherosclerosis by Magnetic Resonance Imaging." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1429796182.

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40

MA, DAN. "Magnetic Resonance Fingerprinting." Case Western Reserve University School of Graduate Studies / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=case1426170542.

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41

Lei, Hao. "Magnetic resonance perfusion imaging and double quantum coherence transfer magnetic resonance spectroscopy." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0021/NQ45007.pdf.

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42

McDougall, Mary Preston. "Single echo acquisition magnetic resonance imaging." Texas A&M University, 2004. http://hdl.handle.net/1969.1/3324.

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The dramatic improvement in magnetic resonance imaging (MRI) scan time over the past fifteen years through gradient-based methods that sample k-space more efficiently and quickly cannot be sustained, as thresholds regarding hardware and safety limitations are already being approached. Parallel imaging methods (using multiple receiver coils to partially encode k-space) have offered some relief in the efforts and are rapidly becoming the focus of current endeavors to decrease scan time. Ideally, for some applications, phase encoding would be eliminated completely, replaced with array coil encod
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Brown, David Gerald. "Instrumentation for parallel magnetic resonance imaging." Texas A&M University, 2005. http://hdl.handle.net/1969.1/4784.

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Parallel magnetic resonance (MR) imaging may be used to increase either the throughput or the speed of the MR imaging experiment. As such, parallel imaging may be accomplished either through a "parallelization" of the MR experiment, or by the use of arrays of sensors. In parallelization, multiple MR scanners (or multiple sensors) are used to collect images from different samples simultaneously. This allows for an increase in the throughput, not the inherent speed, of the MR experiment. Parallel imaging with arrays of sensor coils, on the other hand, makes use of the spatial localization proper
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Tymofiyeva, Olga. "Magnetic resonance imaging in dental medicine." Göttingen Sierke, 2010. http://d-nb.info/1002094976/04.

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Kristoffersen, Wiberg Maria. "Magnetic resonance imaging in breast diagnosis /." Stockholm : Karolinska Univ. Press, 2002. http://diss.kib.ki.se/2002/91-7349-343-0.

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46

Blomqvist, Lennart. "Magnetic resonance imaging of rectal tumours /." Stockholm, 1997. http://diss.kib.ki.se/1997/91-628-2797-9.

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47

Graff, Christian George. "Parameter Estimation in Magnetic Resonance Imaging." Diss., The University of Arizona, 2009. http://hdl.handle.net/10150/195912.

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This work concerns practical quantitative magnetic resonance (MR) imaging techniques and their implementation and use in clinical MR systems. First, background information on MR imaging is given, including the physics of the magnetic resonance, relaxation effects and how imaging is accomplished.Subsequently, the first part of this work describes the estimation of the T2 relaxation parameter from fast spin-echo (FSE) data. Various complications are considered, including partial volume and data from multiple receiver coils along with the effects of the timing parameters on the accuracy of T2 e
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48

Li, Zhiqiang. "Novel Body Magnetic Resonance Imaging Techniques." Diss., The University of Arizona, 2006. http://hdl.handle.net/10150/193829.

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Body magnetic resonance imaging (MRI) has progressed rapidly over the last 12 years. The advances in hardware and software have allowed the implementation of faster and better pulse sequences for body imaging. Despite the improvements in MRI technology there are still problems associated with current body MRI techniques that limit their diagnostic capabilities. The main goal of this work is to develop novel body MRI methods to improve the diagnosis of cardiac and abdominal pathologies. One of the goals of this work is to develop a technique to improve the detection of lipid infiltration in th
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49

Placidi, Elisa. "Magnetic resonance imaging of colonic function." Thesis, University of Nottingham, 2011. http://eprints.nottingham.ac.uk/13886/.

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The overall aim of this work was to develop MRI methods and techniques to study the physiology and the pathology of the gastrointestinal tract, with particular attention to the colon. Besides, the development of new methods was aimed in order to perform quantitative analysis using proton and fluorine MRI. In particular the first experimental chapter describes the development and the optimisation of imaging protocols for studying colonic function in undisturbed physiologically relevant conditions. In addition a texture analysis method based on Gabor filters is developed and used for the objecti
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Noterdaeme, Olivier. "Magnetic Resonance Imaging of the Liver." Thesis, University of Oxford, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.490296.

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In this thesis, we develop image analysis techniques, applied and tested in a clinical environment, to support the management of patients with (metastatic) liver cancer The incidence of this cancer is rising and represents approximately 10% of cancer cases in men and women. Image analysis of the liver is difficult, in part because it is the only organ mixing arterial and (portal) venous blood, and in part because of the large excursion it is undergoing during respiration.
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