Sökning: "Computer tomography"

Visar resultat 16 - 20 av 67 uppsatser innehållade orden Computer tomography.

  1. 16. Visual Transformers for 3D Medical Images Classification: Use-Case Neurodegenerative Disorders

    Master-uppsats, Högskolan i Halmstad/Akademin för informationsteknologi

    Författare :Pooriya Khorramyar; [2022]
    Nyckelord :Artificial intelligence; Explainable AI; Machine learning; Deep learning; Computer vision; Vision Transformer; Visual Transformer; ViT; Convolutional Neural Network; CNN; Neurodegenerative disorder; Mild cognitive impairment; Alzheimer s disease; Fluorodeoxyglucose; 18F-FDG; Positron Emission Tomography; PET; Brain; Brain scan;

    Sammanfattning : A Neurodegenerative Disease (ND) is progressive damage to brain neurons, which the human body cannot repair or replace. The well-known examples of such conditions are Dementia and Alzheimer’s Disease (AD), which affect millions of lives each year. LÄS MER

  3. 17. Implant Movement Analysis in theroutine diagnosis of aseptic looseningafter hip arthroplasty, a two year followup

    Kandidat-uppsats, Örebro universitet/Institutionen för medicinska vetenskaper

    Författare :Vendela Cappelen; [2021]
    Nyckelord :;

    Sammanfattning : Introduction: A major long-term complication after hip arthroplasty is aseptic loosening.Conventional planar radiographs cannot always provide a certain diagnosis, which makesdecisions regarding revision surgery difficult. LÄS MER

  4. 18. GAN-based Automatic Segmentation of Thoracic Aorta from Non-contrast-Enhanced CT Images

    Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Libo Xu; [2021]
    Nyckelord :Non-contrast-enhanced; Medical Image Segmentation; Image-to-image Translation; U-Net; Generative Adversarial Network; End-to-end; Two-stage;

    Sammanfattning : The deep learning-based automatic segmentation methods have developed rapidly in recent years to give a promising performance in the medical image segmentation tasks, which provide clinical medicine with an accurate and fast computer-aided diagnosis method. Generative adversarial networks and their extended frameworks have achieved encouraging results on image-to-image translation problems. LÄS MER

  5. 19. Subject-specific image analysis and computational modelling of the human Achilles tendon

    Master-uppsats, Lunds universitet/Avdelningen för Biomedicinsk teknik

    Författare :Johanna Panzar; Erika Thörn; [2021]
    Nyckelord :image analysis; Achilles tendon; FE model; biomechanics; CT image; Technology and Engineering;

    Sammanfattning : Achilles tendon rupture is becoming more prevalent with an increasing population of middle aged people participating in recreational sports. A torn Achilles tendon will likely not regain its original function, and it is unknown what treatment options are optimal. LÄS MER

  7. 20. Event-based High Resolution X-ray Imaging using Compton Coincidence Detection

    Master-uppsats, KTH/Medicinsk avbildning

    Författare :Eva Bergström; [2021]
    Nyckelord :Photon counting CT; Compton scattering; Compton kinematics; coincidence detection; χ2 test; Fotonräknande CT; Compton-spridning; Compton-kinematik; sammanfallsdetektering; χ2 -test;

    Sammanfattning : Research on photon counting detectors (PCDs) is focused on semiconductor materials, and silicon is a strong candidate to use in PCDs for photon counting computer tomography (CT). In a silicon detector, a significant portion of the counts is due to Compton scattering events. LÄS MER