Sökning: "diffusion weighted imaging"

Visar resultat 26 - 30 av 43 avhandlingar innehållade orden diffusion weighted imaging.

  1. 26. PET and MRI of Prostate Cancer

    Författare :Catrin von Below; Håkan Ahlström; Cecilia Wassberg; Mauritz Waldén; Jens Sörensen; Michael Häggman; Joel Kullberg; Katrine Åhlström Riklund; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Prostate cancer; lymph nodes; lymph node staging; PET CT; MRI DWI; extended pelvic lymph node dissection; targeted biopsies; multi-parametric MRI; TRUS guided biopsy; multiple regression analysis;

    Sammanfattning : Prostate cancer (PCa) is the most common non-skin malignancy of men in developed countries. In spite of treatment with curative intent up to 30-40% of patients have disease recurrence after treatment, resulting from any combination of lymphatic, hematogenous, or contiguous local spread. LÄS MER

  3. 27. Modern multimodal methods in brain MRI

    Författare :David Abramian; Anders Eklund; Evren Özarslan; Ida Blystad; Hamid Behjat; Jesper Andersson; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MRI; Functional MRI; Diffusion MRI; Graph signal processing; Deep learning;

    Sammanfattning : Magnetic resonance imaging (MRI) is one of the pillars of modern medical imaging, providing a non-invasive means to generate 3D images of the body with high soft-tissue contrast. Furthermore, the possibilities afforded by the design of MRI sequences enable the signal to be sensitized to a multitude of physiological tissue properties, resulting in a wide variety of distinct MRI modalities for clinical and research use. LÄS MER

  4. 28. Optimized MRI methods for simplified oncological imaging in pancreas and liver

    Författare :Nikolaos Kartalis; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Recent technological advances within the fields of Abdominal Imaging have revolutionised oncological imaging. In the investigation of the solid organs in the upper abdomen, extensive examinations are used in order to obtain accurate information. LÄS MER

  5. 29. Experimental and clinical perspective on stroke : evaluation by behavior, magnetic resonance imaging and morphology

    Författare :Zhengguang Chen; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Cerebral ischemia; stroke; penumbra; behavior; hemodynamics; MRI; perfusion; diffusion; relaxation times; rat;

    Sammanfattning : In order to further improve the diagnostic power of the NEU technique in the use for clinical evaluation of brain lesions, like in stroke patients, a biological model system had to be implemented where the relevant aspects of the brain injury and its effects could be mimicked. Two well controlled and reproducible rat models were chosen, one developed by Bjelke et al. LÄS MER

  7. 30. Brain imaging in extremely preterm infants : relations to perinatal factors and outcome

    Författare :Georgios Alexandrou; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The survival of extremely preterm infants has improved over the last decades along with the advances in perinatal care. These immature children are born at a vulnerable stage of brain development, before entering the third trimester of gestation, and are at an increased risk for brain injuries, atypical brain development and subsequent adverse neurodevelopment. LÄS MER