Conveners
T2-8 Magnetic resonance imaging (DPMB) | Imagerie par résonance magnétique (DPMB)
- Emily Heath (Carleton University)
- Luc Beaulieu (Université Laval)
Magnetic resonance imaging (MRI) is well known as a flexible and powerful non-invasive diagnostic imaging technique available to clinical medicine. MRI as a largely qualitative tool is well established, principally used to visualize the internal structure of biological systems through mapping the spatial position of hydrogen. The magnetic resonance signal lifetimes (relaxation times) and...
It is thought that the diameters of axons change due to disease. Until recently measurements of axon diameters (AD) could only be done invasively. AD can now be inferred non-invasively using a magnetic resonance imaging temporal diffusion spectroscopy (TDS) technique that requires many images to be collected with a range of diffusion-times or frequencies. Collecting many images to average...
Stereotaxy is a neurosurgical technique guided by preoperative imaging. Its procedure is typically performed through a small burr hole opening in the skull that prevents tissue visualization. The intervention is basically “blind” for the operator with limited means of intra-operative confirmation that may result in the reduced accuracy and safety. It may take several hours to reach a specific...
Hyperpolarized 3He/129Xe gas pulmonary MRI provides physiologically relevant biomarkers of obstructive lung disease, including emphysema, bronchopulmonary dysplasia and alpha-1 antitrypsin deficiency (AATD). Recently, a stretched-exponential-model combined with under-sampling in the imaging and diffusion direction was used to generate 3He static-ventilation (SV), T2*, multiple b-value...
Magnetic resonance imaging (MRI) is a non-invasive tool. Conventional MRI provides anatomical images with little information about the function of the anatomy. Positron emission tomography (PET) provides images of the function of the organs (e.g. glucose uptake) non-invasively with no anatomical information. Functional MRI (fMRI) gives information of blood oxygenation level within the central...
