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- 24Graduate Studies and Research, Faculty of
- 24Graduate Studies and Research, Faculty of/Theses and Dissertations
- 8Biomedical Engineering, Department of
- 8Biomedical Engineering, Department of/Journal Articles (Biomedical Engineering)
- 4Medicine and Dentistry, Faculty of
- 4Medicine and Dentistry, Faculty of/Journal Articles (Medicine and Dentistry)
Arterial spin labeling (ASL) is a magnetic resonance imaging (MRI) noninvasive method, capable of measuring perfusion, i.e. blood flow, with blood as an intrinsic contrast. ASL measurements of cerebral perfusion are usually acquired at very low spatial resolution (> 60mm3 voxels), for several...
Real-time MR imaging of the cancer patients undergoing external beam radiation treatment represents the next generation in image guided radiotherapy. However, the radio frequency (RF) coil of the MRI is exposed to the pulsed radiation of the linear accelerator in the systems where a medical...
The invention of magnetic resonance imaging (MRI) has advanced the diagnosis of diseases dramatically as it is capable of producing high-quality images of soft tissues non-invasively and safely. However, the high volume of MRI images also means heavy workloads for physicians, which results in...
Amyotrophic lateral sclerosis (ALS) is a highly heterogeneous disease in terms of its clinical presentation, progression, and detected pathology in the body. It is a multi-system degenerative disorder, though a diagnosis is made based on the presence of both upper motor neuron (UMN) and lower...
Diffusion magnetic resonance imaging (dMRI) measures the diffusion (i.e. random molecular motion) of water. Since the motion of water is inhibited by cellular membranes, dMRI provides insight into the microstructural characteristics of the tissue. However, distinguishing between small anatomical...
Neurological disorders are among major causes of disability in Canada. In the diagnostic procedure, Magnetic Resonance Imaging (MRI) is commonly used as it is non-invasive and can produce dramatic contrast between different brain tissues. Brain tissue segmentation is a fundamental step in brain...
The hippocampus is a brain structure responsible for memory, learning, and the stress response; it is also used as a model for major depressive disorder (MDD) in preclinical studies. Preclinical models have shown that the hippocampal subfields are differentially affected by chronic stress....
Investigation of gradient echo MRI for blood vessel imaging and susceptibility-weighted imaging in the human brainDownload
Despite the vast myriad of applications and the long way it has come, MRI is still a relatively new field of knowledge with much prospect for more advancement and expansion. This work is mainly concerned with two gradient echo imaging methods which are directly or indirectly related to blood...
Introduction: Acute blood pressure (BP) reduction is among the few treatments options available in the acute management of intracerebral hemorrhage (ICH). Recent observational studies have demonstrated the presence of lesions suggestive of ischemia on diffusion-weighted sequences (DWI) on MRI. We...