Sökning: "résonance"

Visar resultat 11 - 15 av 851 uppsatser innehållade ordet résonance.

  1. 11. Patienters upplevelser av att genomgå en MR-undersökning

    Kandidat-uppsats,

    Författare :Duziban Bizhati; Elin Astersund; [2023-05-10]
    Nyckelord :Magnetic resonance imaging MRI ; patient experience; patient care; anxiety; phobia; emotional stress; head examination;

    Sammanfattning : Bakgrund. En magnetkamera ger mest detaljerad information om kroppens anatomi och kan skilja på olika typer av vävnad på ett bättre sätt än andra tekniker. För att få så bra bilder som möjligt är det viktigt att patienten ska ligga stilla i en tunnel med öppningar i båda ändarna. LÄS MER

  3. 12. Preprocessing for intravoxel incoherent motion analysis in the brain - Signal drift correction

    Master-uppsats,

    Författare :Amina Warsame; [2023-04-17]
    Nyckelord :Medical physics; Diffusion magnetic resonance imaging; dMRI; Intravoxel incoherent motion; IVIM;

    Sammanfattning : Diffusion magnetic resonance imaging (dMRI) is a diagnostic imaging technique that is sensitized to the movement of water molecules in tissues. Intravoxel incoherent motion (IVIM) analysis can be used to estimate blood flow in capillaries from weakly diffusion-weighted data. LÄS MER

  4. 13. Brain morphometry in Parkinson’s disease

    Master-uppsats,

    Författare :Lönkvist Olivia; [2023-03-02]
    Nyckelord :Medical physics; Parkinson’s disease; Computational anatomy; Quantitative image analysis;

    Sammanfattning : Abstract Purpose The purpose of this brain morphometry study was to examine the volumes of different regions of the brain by research participants with Parkinson’s disease. Method To carry out the study, MR (magnetic resonance) images from 956 research participants from the Parkinson’s Progression Markers Initiative (PPMI) were used. LÄS MER

  5. 14. Image-driven simulation of brain tumors using a reaction-diffusion mathematical model

    Master-uppsats, Linköpings universitet/Avdelningen för medicinsk teknik

    Författare :Kristos Qiqi; [2023]
    Nyckelord :brain tumor; cancer; mathematical model; simulation; magnetic resonance images; hjärntumör; cancer; matematisk model; simulering; magnetresonanstomografi bilder;

    Sammanfattning : Brain tumors pose a big challenge in the field of neuro-oncology. Gliomas are the largest subgroup. Magnetic resonance imaging is a non-invasive tool for detecting and characterizing these tumors. Mathematical models, such as the reaction-diffusion equation, can be used for understanding the intricate behavior of gliomas. LÄS MER

  7. 15. Enabling Hybrid Real Time and Retrospectively Gated Imaging in a Numerical Phantom

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

    Författare :Sara Mineur; [2023]
    Nyckelord :Cardiovascular Magnetic resonance Imaging CMR ; Sector Wise Golden-Angle SWIG ;

    Sammanfattning : Sector-Wise Golden Angle (SWIG) is a novel approach that was developed to address the limitations associated with Golden Angle radial imaging, commonly used for high temporal resolution flow measurements. Golden angle radial imaging is a time-efficient method that effectively reduces motion sensitivity. LÄS MER