Essays about: "datortomografi"

Showing result 6 - 10 of 58 essays containing the word datortomografi.

  1. 6. Validering av muskelomfångsmätning med måttband hos hund

    University essay from SLU/Dept. of Clinical Sciences

    Author : Linnea Flink; Ulf Granberg; [2023]
    Keywords : datortomografi; DT; hund; intertester reliabilitet; intratester reliabilitet; muskelmassa; muskelstyrka; måttband; omfångsmätning med måttband; omfång; rehabilitering; validitet;

    Abstract : Hundars välmående beror bland annat av dess kondition, uthållighet och muskelstyrka. Idag är det mycket svårt att direkt mäta muskelstyrka hos djur, och muskelstyrka mäts därav indirekt via exempelvis omfångsmått från datortomografi (DT). READ MORE

  3. 7. Deep Ring Artifact Reduction in Photon-Counting CT

    University essay from KTH/Fysik

    Author : Konstantinos Liappis; [2022]
    Keywords : Photon¬counting; Spectral CT; Material Decomposition; Deep learning; Resnet; Ring artifact; Sinogram; Fotonräknande; Spektral datortomografi; Materialdekomposition; Djupinlärning; Resnet; Ringartefakt; Sinogram;

    Abstract : Ring artifacts are a common problem with the use of photon-counting detectors and commercial deployment rests on being able to compensate for them. Deep learning has been proposed as a candidate for tackling the inefficiency or high cost of traditional techniques. READ MORE

  4. 8. Imaging of the MTP joint: Developing an imaging protocol optimised for damage detection and 3D modelling

    University essay from KTH/Fysik

    Author : Johanna Jacobsson; [2022]
    Keywords : computed tomography; magnetic resonance imaging; cone beam computedtomography; cartilage; osteochondral lesions; metatarsal phalangeal joint; datortomografi; magnetisk resonanstomografi; kon-datortomografi; brosk; kondrala skador; metatarsalphalangen-leden;

    Abstract : Walking without pain in the toe has a significant impact on a person’s well-being. Human mobility will be impaired in osteoarthritis of the big toe, and pain will occur during walking. By replacing the cartilage or bone injury with an individualised implant, osteochondral injuries to the knee and ankle can be treated. READ MORE

  5. 9. Gas in Scattering Media Absorption Spectroscopy in Large Geometries: Towards Monitoring Oxygen in Adult Lungs

    University essay from Lunds universitet/Förbränningsfysik; Lunds universitet/Fysiska institutionen

    Author : Anna Brandt; [2022]
    Keywords : Physics and Astronomy;

    Abstract : GAs in Scattering Media Absorption Spectroscopy (GASMAS) is a technique to study free gas inside strongly scattering bulk-materials. GASMAS is successful in safely measuring oxygen in lungs of neonates, with low-power tuneable diode-laser spectroscopy at 760 nm. READ MORE

  6. 10. Phase-Contrast Imaging, Towards G2-less Grating Interferometry With Deep Silicon

    University essay from KTH/Fysik

    Author : Rickard Brunskog; [2022]
    Keywords : Phase-contrast imaging; phase-contrast; CT-scanning; Computed-tomography; 1 micrometer resolution x-ray; grating-less phase-contrast imaging; Faskontraströntgen; faskontrast; CT-skanning; 1 mikrometer upplösning x-ray; gitterlös faskontrast; datortomografi;

    Abstract : Conventional phase-contrast imaging entails stepping an analyser grating across the detector to resolve the interference pattern caused by the x-rays after passing through a series of gratings in a so-called Talbot-Lau interferometer. However, the analyser grating in the interferometer poses a challenge, not only due to the machinery and alignment required but also due to each exposure delivering a dose to the subject. READ MORE