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Skip to Search Results- 19Magnetic Resonance Imaging
- 3Diffusion Tensor Imaging
- 2Image Processing
- 2Linac-MR
- 2MRI
- 2Medical Physics
- 1Abdollah, Vahid
- 1Ashfaque Mostafa, Tahjid
- 1Barta, Radim
- 1Budd, Alexandra
- 1Dietz, Bryson
- 1Elliott, Cameron Alistair
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Hippocampal Diffusion Tensor Imaging in Parkinson's Disease and Associations with Non- Motor Symptoms
DownloadSpring 2023
Parkinson’s disease (PD) is the second most common neurodegenerative disorder and causes not only well-characterised motor symptoms, but also a host of non-motor symptoms that greatly impact quality of life. PD exists within a larger spectrum of disorders caused by the accumulation of Lewy bodies...
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Spring 2023
The rotating B0 linac-MR is a new type of radiotherapy treatment machine that combines radiation delivery from a linear accelerator (linac) with a magnetic resonance imaging (MRI) system for real-time tumour tracking. This kind of combined technology aims to achieve tighter margins in cancer...
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A Study of Ensemble Machine Learning Model Architectures for Parkinson’s Disease Detection and Freezing of Gait Forecasting
DownloadFall 2021
Parkinson's Disease (PD) is a major progressive neurological disorder and is extremely difficult to diagnose PD~\cite{pmid23039866} since there are no defined medical tests for this task. The existing approach involves a combination physical examinations, neuroimaging and demographic analysis...
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Fall 2020
External beam radiotherapy (EBRT) utilizes high energy radiation (primarily photons or electrons) generated from a linear accelerator (linac) for the treatment of cancer. Current linac technologies lack the ability to continuously monitor the tumour and surround area during treatment. Real-time...
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Scalable Solutions to Image Abnormality Detection and Restoration using Limited Contextual Information
DownloadFall 2020
Detecting and interpreting image abnormalities and restoring images are essential to many processing pipelines in diverse fields. Challenges involved include randomness and unstructured nature of image artefacts (from signal processing perspective) and performance constraints imposed by...
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Measurement and Correction for the Magnetic Susceptibility Effects of Fat in Venous Oximetry: Application in the Quantification of Muscle Oxygen Consumption (VO2) with Plantar Flexion Exercise
DownloadSpring 2018
Measuring venous oxygen saturation (SvO2) provides direct assessment of the upstream muscle or organ's ability to extract and metabolize oxygen. Previously, measurement of venous oxygen saturation has been performed in most studies by intravenous catheterization. This approach has the advantage...
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Fall 2018
Magnetic resonance imaging (MRI) is a universally-used tool in clinical neurosurgery. It has revolutionized preoperative diagnosis, surgical planning, intraoperative targeting, and postoperative surveillance. Nevertheless, the idea that early, quantifiable perioperative structural changes of the...
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Spring 2018
Quantitative relaxation mapping allows for direct non-invasive tissue quantification with removal of variations arising from RF fields and non-uniform coil sensitivity profiles. T2 may be quantified using multi-echo spin echo sequences; however, in practical imaging situations, imperfect...
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The Effects of Axial Loading on the Disc and Motion Segment Relative to Disc Degeneration and Pain Using Novel MRI Biomarkers
DownloadSpring 2017
The underlying pathology of low back pain (LBP) is poorly understood. Although MRI is often used as a sensitive modality for depicting pathoanatomical abnormalities, it is often clinically inconclusive due to a lack of specificity. While most patients experience symptoms when the spine is loaded,...
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Spring 2017
In magnetic resonance imaging (MRI), radio frequency (RF) detectors or “coils” are used to excite and receive signal from the nuclear spins. This thesis focuses on the design and development of RF coils and methods to achieve the best possible image quality at high static magnetic field strengths...