Sökning: "cortical bone"

Visar resultat 1 - 5 av 18 uppsatser innehållade orden cortical bone.

  1. 1. The Investigation of Crack Propagation in Cortical Bone using a Phase Field Fracture Approach

    Master-uppsats, Lunds universitet/Avdelningen för Biomedicinsk teknik

    Författare :Olivia Karlsson; [2022]
    Nyckelord :Cortical Bone; Cortical bone microstructure; Phase field; Phase field fracture approach; Crack propagation; Technology and Engineering;

    Sammanfattning : Human cortical bone tissue is a complex and strong composite material, with the ability to resist damage via slowing, stopping or redirecting propagating cracks. However, the ability is impaired with age. At the microscale, changes are seen both in terms of increased porosity and as changes in local material parameters. LÄS MER

  3. 2. Applicability of Graph Neural Networks to predict Human variability in Human Body Model Rib Strain Predictions

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Statistik, AI och data science

    Författare :Julia Solhed; [2022]
    Nyckelord :Graph Neural Networks; Human Body Model; SAFER HBM; HBM simulation; Rib strain predictions; Rib fracture risk predictions;

    Sammanfattning : Finite element human body models have in recent years become widely used in the area of vehicle safety evaluations. They make it possible to predict injury risk in specific areas, down to the organ level in the human body. An existing human body model, SAFER HBM includes a rib cage representing an average male. LÄS MER

  4. 3. Investigation of a Collapsed Cone Superposition Algorithm for dosimetry in brachytherapy

    Master-uppsats, Stockholms universitet/Fysikum

    Författare :Freja Alpsten; [2021]
    Nyckelord :Brachytherapy; Collapsed Cone; Model-Based Dose Calculation Algorithms; Radiotherapy;

    Sammanfattning : Background & Purpose: The current standard dosimetry in brachytherapy treatment planning, the TG-43 formalism, ignore the presence of non-water media and finite patient dimensions. This can cause clinically relevant errors in dose estimates. LÄS MER

  5. 4. Deep Learning-Based Skeleton Segmentation for Analysis of Bone Marrow and Cortical Bone in Water-Fat Magnetic Resonance Imaging

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

    Författare :Adham Belbaisi; [2021]
    Nyckelord :Water-fat MRI; UK Biobank; Deep learning; Skeleton segmentation; Bone marrow; Cortical bone;

    Sammanfattning : A major health concern for subjects with diabetes is weaker bones and increased fracture risk. Current clinical assessment of the bone strength is performed by measuring Bone Mineral Density (BMD), where low BMD-values are associated with an increased risk of fracture. LÄS MER

  7. 5. The effect of vessel holes on fracture behaviour in the femoral neck of the human femur

    Master-uppsats, Lunds universitet/Avdelningen för Biomedicinsk teknik

    Författare :Sofia Rokkones; Karin Odin; [2020]
    Nyckelord :image analysis; femur; FE model; biomechanics; CT image; Technology and Engineering;

    Sammanfattning : Hip fractures are widely spread in today's society and affect a person's quality of life. Osteoporosis is a bone disease that results in more fragile bones and an increased risk of bone fractures, including hip fractures. A method proposed for assessing the fracture risk is finite element (FE) models of the femur. LÄS MER