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.
Results
Showing 1 to 20 of 33 for “"Dynamic Imaging"”.
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Reduced-Encoding Dynamic Imaging
… basis functions of the GS model by introducing dynamic information. The two-reference reduced-encoding imaging by generalized-series reconstruction (TRIGR) method suppresses background information through the use of a second high-resolution reference image. A second technique injects information …
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Dynamic Imaging by Motion Estimation
… of the proposed technique is spatiotemporal imaging of the beating heart. Other potential applications include functional imaging and interventional imaging.
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Advancing Dynamic Imaging for Microfluidic Stimulated Tissues: Biology, Techniques, and Applications
Using quantitative fluorescence microscopy imaging of cellular activities in intact tissues stimulated in a microfluidic device creates opportunities for studying major diseases such as diabetes and cancer. Despite a number of documented phenotypic traits of these diseases, the underlying …
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Dynamic imaging of nanoparticles on femtoseconds to minutes time scale at atomic resolution
… technique that enabled high-resolution imaging of nanoparticles' electron probability density. This method has set the stage for the STM to investigate the optical and electronic properties of nanoparticles, on a particle-by-particle basis, with sub-nanometer and 0.1-eV resolutions. Most …
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Dynamic imaging of magnetic bioeffects in cells using two-channel two-photon autofluorescence intensity and lifetime microscopy
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-05-01
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Dynamic Magnetic Resonance Imaging
We propose a cost-effective algorithm for the dynamic image reconstruction problem in magnetic resonance imaging (MRI). The proposed imaging method, the ensemble Kalman filter, is a Monte Carlo approximation to the Kalman filter with reduced computational cost. The technique reconstructs images of …
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Prior -Information -Driven Magnetic Resonance Imaging and Magnetic Resonance Spectroscopic Imaging
… of applications, including reduced field-of-view dynamic imaging, T2 mapping, MR thermometry, and MR spectroscopic imaging.
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Dynamic Cone-beam Reconstruction for Perfusion Computed Tomography
Perfusion CT (Computed Tomography) is a dynamic imaging technique whose aim is to assess the blood supply to tissue. The limited field of view of current CT detectors restricts its use to perfusion studies of a small volume. The introduction of large area detectors in CT, however, will allow …
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Physical ecology of marine microbes
… a fundamental role in driving ocean ecosystem dynamics and biogeochemistry. While their importance is global in scale, microbial processes unfold at the level of single cells and are intimately dependent on interactions between microorganisms, their neighbors, and the surrounding physical and …
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Motion -Compensated 3-D Generalized Series Imaging
Three-dimensional magnetic resonance (MR) imaging is highly desirable from the standpoints of minimum voxel size, volumetric coverage and signal-to-noise efficiency. Unfortunately, long scan times have traditionally precluded the use of 3-D imaging in applications where simultaneous resolution of …
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The multiple migratory mechanisms of systemically infused mesenchymal stem cells to sites of inflammation
… trafficking, using high resolution confocal and dynamic imaging techniques. We found that MSC transmigration is associated with both leukocyte-like and novel mechanisms, including nonapoptotic migratory blebbing. In the fourth chapter, we address the importance of non-endothelial factors in MSC …
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Analysis of Cartesian and projection (K,T)-space sampling patterns when using the partially separable functions model for cardiac perfusion MR imaging
… agent. In clinical practice, cardiac perfusion imaging is used to diagnose ischemic myocardial tissue, coronary artery disease, and, to a lesser extent, myocardial infarctions. To diagnose these tissues and diseases, real time ECG triggered cardiac imaging techniques (fast T1-weighted gradient …
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Development of Magnetic Resonance Spectroscopic Imaging Methods to Assess Tumour Metabolism
… proposed as magnetic resonance spectroscopic imaging (MRSI) agents for investigating metabolism, perfusion and pH in tumours. However, the sensitivity of direct detection is limited by the low gyromagnetic ratios of these nuclei. Sensitivity can be increased by transferring the …
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Integrative Multivariate Analysis of Mouse Liver Acini
… of the liver. A unique methodology where live dynamic imaging of a living Mus musculus’ (mice) liver was performed. To perform intravital microscopy (IVM), the methodology required the creation of a 3D printed platform called RHIT (Reusable Hepatic Imaging Tool) that enabled seamless …
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Quantum magnetic imaging for DNA biophysical measurements
… systems, and inferring the underlying bio-dynamics from the imaged position of the probe. This approach is limited as distinct bio-mechanical configurations may result in the same imaged position dependence of the probe. Additionally, if a flourescent probe is chosen, measurements can only …
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Design and Fabrication of a Nanocantilever for High-Speed Force Microscopy
… speed of the AFM could be increased to allow for dynamic imaging, it could be used for many new applications in materials science, life science and process control. Much of the current work toward high-speed AFM has involved improvements to scanners and electronics. Innovative scanner design and …
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Development of an ultrasound system to measure in vivo dynamic cervical spine intervertebral disc mechanics
… Clinical ultrasound, which is known for dynamic imaging, was explored as a valuable tool to image motion of the cervical spine, specifically vertebral motion and intervertebral disc deformation. Ultrasound imaging was first validated ex vivo and then utilized in vivo to demonstrate …
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Interrogating Cancer Metabolism using Novel Imaging Techniques
… can be interrogated using non-invasive metabolic imaging techniques, which enable the investigation of tumour metabolism in vivo and the identification of imaging biomarkers. Hyperpolarised 13C Magnetic Resonance Spectroscopic Imaging (MRSI) is a metabolic imaging technique that enables dynamic …
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Ultrasound imaging of cervical spine motion for extreme acceleration environments
… and military pilots. Ultrasound is known for dynamic imaging and diagnostic workup of the axial and appendicular skeleton, but is not currently used to image the cervical spine, the injury of which may change the biomechanics of the cervical vertebrae, which CT and MRI (the current gold …
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Investigation of Cell Morphology and Cell-Induced 3-D Matrix Reorganization
… of how cells reorganize matrices over time, 4-D imaging techniques were used. Cells were plated inside 3-D matrices and time-lapse DIC and LSCM imaging was performed while disrupting cytoskeletal proteins in the presence or absence of the Rho kinase inhibitor. Addition of nocodazole induced rapid …
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