Sökning: "Diffusion tensor"
Visar resultat 1 - 5 av 57 avhandlingar innehållade orden Diffusion tensor.
1. Applications of diffusion MRI: Tensor-valued encoding, time-dependent diffusion, and histological validation
Sammanfattning : Diffusion MRI (dMRI) sensitizes the MR signal to the diffusion of water molecules at the microscopic level and thereby non-invasively probes tissue microstructure. This is relevant when determining biological properties of tissues, for example, cancer type and its malignancy. LÄS MER
2. Pushing diffusion MRI towards new dimensions
Sammanfattning : Diffusion-MRI techniques allow the non-invasive investigation of microstructural changes in living tissues. However, a detailed interpretation of the data is complicated by the fact that multiple microscopic environments with varying diffusion properties all contribute to the measured signal. LÄS MER
3. Nerve diffusion tensor imaging
Sammanfattning : Diffusion tensor imaging (DTI) is a magnetic resonance imaging technique that in vivo visualises random translational movement of water molecules. DTI has inherent difficulties with low signal-to-noise ratio, sensitivity to patient motion, field inhomogeneities and fast T2 relaxation. LÄS MER
4. Computational diffusion MRI: Tensor-based models for diffusion imaging of the brain
Sammanfattning : .... LÄS MER
5. Variational Tensor-Based Models for Image Diffusion in Non-Linear Domains
Sammanfattning : This dissertation addresses the problem of adaptive image filtering.Although the topic has a long history in the image processing community, researchers continuously present novel methods to obtain ever better image restoration results. LÄS MER