Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 349 for “"Functional magnetic resonance imaging"”.
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Adaptive functional magnetic resonance imaging
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 …
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Functional Magnetic Resonance Imaging of Breast Cancer
This thesis examines the use of magnetic resonance imaging (MRI) techniques in the detection of breast cancer and the prediction of pathological complete response (pCR) to neoadjuvant chemotherapy (NACT). This thesis compares the diagnostic performance of diffusion-weighted imaging (DWI) models in …
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Incorporation of phase changes in functional magnetic resonance imaging
Functional magnetic resonance imaging (fMRI) data is acquired as a complex image pair including magnitude and phase information. The vast majority of fMRI experiments do not attempt to take advantage of the time varying phase information. The phase of the MRI signal is related to the local magnetic …
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Processing strategies for functional magnetic resonance imaging data sets
Thesis (Ph.D.)--Harvard--Massachusetts Institute of Technology Division of Health Sciences and Technology, 1999.
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Advances in functional magnetic resonance imaging to facilitate brain research
… critical for cognition and behaviors. High field functional magnetic resonance imaging (fMRI) based on blood oxygenation level dependent contrast (BOLD) is one such tool capable of non-invasively mapping functional columns and/or layer responses at working or resting state. However, several …
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Resting State Functional Magnetic Resonance Imaging Alterations In Psychosis Spectrum Disorders
The general metadata -- e.g., title, author, abstract, subject headings, etc. -- is publicly available, but access to the submitted files is restricted to UT Southwestern campus access and/or authorized UT Southwestern users.
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Signal processing in functional magnetic resonance imaging (fMRI) of the brain
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1998.
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Functional Magnetic Resonance Imaging as an Assessment Tool in Critically Ill Patients
… this dissertation was to elucidate the role of functional neuroimaging in assessing brain activity in critically ill patients. The overall objective was addressed in the following four empirical chapters: In Chapter 2, three versions of a hierarchically-designed auditory task were developed and …
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What functional magnetic resonance imaging can tell us about theory of mind
… and feelings. In chapters 1 and 2, I use functional magentic resonance imaging (fMRI) to investigate the neural substrate of the theory of mind, in healthy human adults. I conclude (1) that specialised brain regions, including a region of the temporo-parietal junction (the TPJ-M), are …
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Multimodal neuroimaging with simultaneous electroencephalogram and high-field functional magnetic resonance imaging
… recording of electroencephalogram (EEG) and functional magnetic resonance imaging (tMRI) is an important emerging tool in functional neuroimaging with the potential to reveal new mechanisms for brain function by combining the high spatial resolution of fMRI with the high temporal resolution …
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Analysis of surface coils using Green Functions for functional magnetic resonance imaging
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.
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Functional magnetic resonance imaging of the frequency organization of human auditory cortex
Thesis (Ph.D.)--Harvard--Massachusetts Institute of Technology Division of Health Sciences and Technology, 1998.
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Pre-operative Functional Magnetic Resonance Imaging: Application to Tumour Resection by Awake Craniotomy
… brain mapping technique, non-invasive imaging tools like functional magnetic resonance imaging (fMRI) have become increasingly popular at the pre-operative planning stage. In this thesis, technical work has been done to improve, characterize, and provide perspective on appropriate usage …
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Modelling Effective Connectivity in Functional Magnetic Resonance Imaging Data by State Space Models
This dissertation develops a new approach using state space models for effective connectivity analysis. The proposed approach integrates both activation and connectivity analysis into one single model. It takes the temporal information in the fMRI data into consideration explicitly and can be used …
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High relaxivity biomolecule based contrast agents engineered for molecular functional magnetic resonance imaging
Magnetic resonance imaging (MRI) is a powerful neuroimaging tool that allows non-invasive visualization of the brain with high spatial and temporal resolution. Research on MRI contrast agents and their application to problems in neuroscience is burgeoning, and there is particular interest in …
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Somatotopic mapping of the human somatosensory cortex using functional magnetic resonance imaging (fMRI)
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.
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Improved Methods for Motion-Compensating and Event-Related Spinal Functional Magnetic Resonance Imaging (fMRI)
Functional magnetic resonance imaging (fMRI) has become a widely used technique for non-invasive brain mapping, and methods have now evolved to allow fMRI of the spinal cord (spinal fMRI) as well. With the goal of improving spinal fMRI, the studies presented herein have investigated potential …
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