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 15 of 15 for “"Magnetic resonance elastography"”.
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Application of magnetic resonance elastography to atherosclerosis
… to the mechanical properties of the plaque. Magnetic resonance elastography (MRE) images tissue elasticity by inverting, externally excited, harmonic wave displacement into a stiffness map, known as an elastogram. The aim of this thesis is to computationally and experimentally investigate the …
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Vibrational characteristics of brain magnetic resonance elastography
… to investigate vibrational characteristics of magnetic resonance elastography (MRE) of the brain. MRE is a promising, non-invasive methodology for the mapping of shear stiffness of the brain. A mechanical actuator shakes the brain and generates shear waves, which are then imaged with a special …
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Magnetic resonance elastography studies of human skeletal muscle
… areas was unavailable until the advent of a new Magnetic Resonance Imaging (MRI) technique known as Magnetic Resonance Elastography (MRE). MRE is a phase-contrast imaging technique that enables quantification of tissue mechanical properties by capturing the motion of induced shear waves via a …
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Identification of Transversely Isotropic Material Properties from Cardiac Magnetic Resonance Elastography
… some forms of diastolic heart failure. Although magnetic resonance elastography (MRE) has been used to estimate isotropic stiffness in the heart, myocardium has anisotropic material properties with greatest stiffness along the fibre direction. This thesis investigated two methods for determining …
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Magnetic resonance elastography and nonlinear inversion problem in the aging brain
… quantitative measurements as disease biomarkers. Magnetic resonance elastography (MRE) is a non-invasive imaging technique created, and being developed, based on modeling of mechanical properties of biological tissue. For example, the combination of state-of-the-art MR imaging and finite element …
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Magnetic Resonance Elastography of the Brain: from Phantom to Mouse to Man
The overall objective of this study is to develop magnetic resonance elastography: MRE) imaging to better understand brain deformation, brain tissue mechanical properties, and brain-skull interaction in vivo. The findings of this study provide parameters for numerical models of human head …
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Imaging the local mechanical properties of the brain with high-resolution magnetic resonance elastography
… and monitoring of disease progression. Magnetic resonance elastography (MRE) is a shear wave imaging technique that provides reliable, noninvasive estimates of tissue stiffness. MRE has been developed for many applications, and clinical practice has adopted MRE for the detection and …
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Creation of brain tissue-mimicking material and multi-material gradient 3D printer for magnetic resonance elastography phantom
Magnetic resonance elastography (MRE) is a non-invasive tissue imaging method that measures shear stiffness. While MRE has many benefits, it is not currently used clinically for scanning the human brain, mainly because it has not been validated with independent mechanical property testing methods. …
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Dynamic Deformation and Mechanical Properties of Brain Tissue
… by measuring human brain motion using tagged magnetic resonance imaging. Magnetic resonance elastography was performed in the ferret brain to measure its mechanical properties in vivo. Brain tissue is not only heterogeneous, but may also be anisotropic. To characterize tissue anisotropy, an …
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Effects of swelling on brain tissue mechanical properties by indentation
… underlying brain tissue swelling. Most commonly, magnetic resonance imaging techniques have been used, particularly with the development of magnetic resonance elastography, to study swelling in vivo. However, localized testing on in vitro tissue slices have become useful alternatives as models of …
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Micro-motion detection by optical coherence tomography (OCT) and its clinical applications
… has various applications such as ultrasound elastography and magnetic resonance elastography (MRE). Ultrasound transducers, the most commonly used tool to detect endogenous and exogenous micro-motions, have a number of drawbacks: including the requirements of the physical contact with the …
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Development and optimization of high resolution multi-shot magnetic resonance acquisitions for diffusion weighted imaging
… weighted imaging and applies them to magnet resonance elastography in order to improve the resolution and spatial coverage achievable with magnetic resonance elastography.
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Development of Surface Acoustic Wave Optical Coherence Elastography (SAW-OCE) for Soft Tissue Characterisation
… advancement in imaging modalities such as the magnetic resonance elastography (MRE) and the ultrasound elastography to quantify the mechanical properties. Although the magnetic resonance imaging (MRI) and the ultrasound imaging can penetrate deep inside the human body, the millimetre-scale …
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DEVELOPMENT OF SPACE-INVARIANT SIGNATURE ALGORITHM (SISA) - AN INNOVATIVE APPROACH FOR PROCESSING THE MEDICAL IMAGES FOR THE DETECTION AND LOCALIZATION OF EARLY ABNORMALITIES IN BIOLOGICAL TISSUES
… types of medical images such as ultrasound, Magnetic Resonance Elastography (MRE) and Computed Tomography (CT scan) for the detection and localization of abnormalities at an incipient stage.
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Quantitative Magnetic Resonance Imaging For The Early Prediction of Treatment Response In Triple Negative Breast Cancer
… to be de-escalated.</p> <p>Quantitative Magnetic Resonance Imaging (MRI) may be used to probe and measure aspects of the perfusion, diffusion, and mechanical properties of a cancer and its surroundings. In the research setting, several quantitative MRI biomarkers have shown potential for …