Sökning: "3d imaging"

Visar resultat 16 - 20 av 287 avhandlingar innehållade orden 3d imaging.

  1. 16. Direct imaging of Stimulated Raman scattering : 3D spatial control and spatial generation

    Författare :Ronja Eriksson; Kerstin Ramser; Mikael Sjödahl; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Experimental Mechanics; Experimentell mekanik;

    Sammanfattning : Stimulated Raman scattering (SRS) is a powerful imaging technique that has become popular during the last decades for its ability to image species specific in a sample with high accuracy. The purpose of this thesis is twofold. Firstly, to demonstrate 3D spatial control of where in the sample SRS is generated. LÄS MER

  3. 17. Polycystic ovary syndrome - morphologic and dynamic evaluation by magnetic resonance imaging

    Författare :Henrik Leonhardt; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; polycystic ovary syndrome; PCOS; magnetic resonance imaging; MRI; ultrasonography; three-dimensional imaging; adrenal hyperplasia; body composition; uterine morphology; uterine peristalsis; ovarian morphology; ovarian perfusion; antral follicle count; AMH; diagnostic accuracy;

    Sammanfattning : Polycystic ovary syndrome (PCOS) is a complex endocrine disorder, affecting up to 15% of women of reproductive age. The syndrome is characterized by oligo-anovulation, hyperandrogenism and polycystic ovaries. What constitutes the best definition of PCOS is still a matter of debate. LÄS MER

  4. 18. Juxtarenal aortic aneurysm - Endovascular treatment and imaging techniques

    Författare :Thorarinn Kristmundsson; Kirurgi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Abdominal aortic aneurysm; juxtarenal aneurysm; endovascular repair; fenestrated endovascular repair; imaging; computed tomography; ultrasound.;

    Sammanfattning : Treatment of abdominal aortic aneurysms has shifted rapidly from open surgery to minimally invasive endovascular aneurysm repair (EVAR). However, anatomical limitations such as short or absent proximal sealing neck and poor access vessels exclude up to 50% of patients. LÄS MER

  5. 19. Three-dimensional T1 quantification techniques for assessment of cartilage quality using dGEMRIC

    Författare :Carl Siversson; Malmö Medicinsk strålningsfysik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; B1; T1; MRI; 3D; correction; dGEMRIC; cartilage; Look-Locker; Variable Flip Angle;

    Sammanfattning : Osteoarthritis (OA) is a common chronic disease and one of the major global causes for functional disabilities. The disease is characterized by loss and degradation of cartilage, commonly affecting the knees and hips. LÄS MER

  7. 20. Development of Techniques for 3D Imaging with Focused Ion Beams - Hydrogen Depth Profiling and Microtomography with Applications in Geology

    Författare :Marie Wegdén; Kärnfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Hydrogen analysis; Depth profiling; Ion beam analysis; Nuclear microprobe; Physics; Nuclear physics; Fysik; Fysicumarkivet A:2007:Wegdén; Kärnfysik; Tomography; 3D Imaging;

    Sammanfattning : In nuclear microprobe experiments, high resolution maps of the measured parameter, e.g. element- or mass distribution, in a sample can be produced with a variety of ion beam analytical techniques. The principle underlying all the techniques is that ions at MeV energies are used as projectiles to cause interactions with the target material. LÄS MER