Sökning: "tractography"

Visar resultat 1 - 5 av 8 avhandlingar innehållade ordet tractography.

  1. 1. Development and application of rule- and learning-based approaches within the scope of neuroimaging Tensor voting, tractography and machine learning

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Daniel Jörgens; Rodrigo Moreno; Örjan Smedby; Chunliang Wang; Jesper Andersson; [2020]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tensor voting; tractography; deep learning; tractogram filtering; diffusion magnetic resonance imaging; tensorröstning; traktografi; djupinlärning; traktogramfiltrering; diffusions-MRT; Applied Medical Technology; Tillämpad medicinsk teknik;

    Sammanfattning : The opportunity to non-invasively probe the structure and function of different parts of the human body makes medical imaging an indispensable tool in clinical diagnostics and related fields of research. Especially neuroscientists rely on modalities like structural or functional Magnetic Resonance Imaging, Computed Tomography or Positron Emission Tomography to study the human brain in vivo. LÄS MER

  2. 2. Diffusion Tensor Imaging and Tractography of the Visual Pathways

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Ylva Lilja; Göteborgs universitet.; Gothenburg University.; [2016]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Diffusion tensor imaging; Visual pathways; Tractography; Temporal lobe resection; Pituitary adenomas;

    Sammanfattning : The visual pathways are essential for human vision, stretching from the retinas of the eyes, via the anterior visual pathways and the optic radiations, to the primary visual cortex in the occipital lobe. Injury to these structures will lead to visual impairment – from small deficits to blindness. LÄS MER

  3. 3. 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; Elna-Marie Larsson; Jimmy Lätt; Danielle van Westen; Tim Dyrby; [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

  4. 4. 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

  5. 5. Preoperative MRI and PET in suspected low-grade gliomas Radiological, neuropathological and clinical intersections

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Anna Falk Delgado; Elna-Marie Larsson; Anja Smits; Jens Sörensen; John Hald; [2015]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Low-grade glioma; MRI; PET; FA; MD; Perfusion; Diffusion; Neuropathology; Oligodendroglioma; Astrocytoma; PET; tractography; DTI; DTT; Radiology; Radiologi;

    Sammanfattning : Background: Gliomas are neuroepithelial tumours classified by cell type and grade. In adults, low-grade gliomas are comprised mainly of astrocytomas and oligodendrogliomas grade II. LÄS MER