Sökning: "Diffusion Tensor Imaging"

Visar resultat 1 - 5 av 36 avhandlingar innehållade orden Diffusion Tensor Imaging.

  1. 1. Nerve diffusion tensor imaging

    Detta är en avhandling från Stockholm : Karolinska Institutet, Dept of Molecular Medicine and Surgery

    Författare :Mikael Skorpil; Karolinska Institutet.; Karolinska Institutet.; [2012]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    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

  2. 2. Diffusion tensor magnetic resonance imaging of the brain Tractography analysis with application in healthy individuals and patients

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Johanna Mårtensson; Uppsala universitet.; [2017]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Magnetic Resonance Imaging; Diffusion Tensor Imaging; Tractography; white matter tracts; Radiology; Radiologi;

    Sammanfattning : In study 1, thirty-eight healthy controls were used for optimization of the method. Fifteen patients with progressive supranuclear palsy and an equal number of age-matched healthy controls underwent diffusion tensor MRI and were then investigated and compared groupwise. LÄS MER

  3. 3. Computational Diffusion MRI: Optimal Gradient Encoding Schemes

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Mohammad Alipoor; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gradient Encoding Scheme; ADC imaging; Diffusion MRI; D-optimal experiment design; Diffusion Tensor Imaging; Optimal Image acquisition; Second and Fourth Order Tensors.; Diffusion Kurtosis Imaging;

    Sammanfattning : Diffusion-weighted magnetic resonance imaging (dMRI) is a non-invasivestructural imaging technique that provides information about tissue microstructures.Quantitative measures derived from dMRI reflect pathologicaland developmental changes in living tissues such as human brain. LÄS MER

  4. 4. Computational diffusion MRI: Tensor-based models for diffusion imaging of the brain

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Mohammad Alipoor; [2014]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Tensor estimation; High order tensor HOT ; Diffusion MRI; Repeated measurements; Single-shell acquisition;

    Sammanfattning : .... LÄS MER

  5. 5. Diffusion Tensor Imaging and Tractography in Epilepsy Surgery Candidates

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Daniel Nilsson; Göteborgs universitet.; Gothenburg University.; [2008]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; epilepsy; epilepsy surgery; temporal lobe resection; optic radiation; diffusion tensor imaging; tractography;

    Sammanfattning : In selected patients with medically refractory epilepsy, surgical treatment can render the patients seizure free or significantly reduce seizure frequency. Temporal lobe resection (TLR) for temporal lobe epilepsy (TLE) is the most commonly performed epilepsy surgery procedure. LÄS MER