Sökning: "contrast enhancement"

Visar resultat 31 - 35 av 119 avhandlingar innehållade orden contrast enhancement.

1. 31. Clinical Applications of Synthetic MRI of the Brain

   Författare :Ida Blystad; Elna-Marie Larsson; Peter Lundberg; Marcel Warntjes; Örjan Smedby; Anne-Marie Landtblom; John Hald; Linköpings universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

   Sammanfattning : Magnetic Resonance Imaging (MRI) has a high soft-tissue contrast with a high sensitivity for detecting pathological changes in the brain. Conventional MRI is a time-consuming method with multiple scans that relies on the visual assessment of the neuroradiologist. LÄS MER

3. 32. The Utility of Manganese for Magnetic Resonance Imaging of Transient Myocardial Ischemia

   Författare :Rolf Eriksson; Håkan Ahlström; Tomas Bjerner; Håkan Arheden; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Radiology; Radiologisk forskning; Radiological research; Radiologisk forskning; radiologi; Radiology;

   Sammanfattning : In order to improve the diagnosis of coronary artery disease, better methods for detection of myocardial perfusion defects would be useful. One of the methods used for myocardial perfusion evaluation today is magnetic resonance imaging. LÄS MER

4. 33. Cerium Oxide Nanoparticles and Gadolinium Integration : Synthesis, Characterization and Biomedical Applications

   Författare :Peter Eriksson; Kajsa Uvdal; Caroline Brommesson; Xuanjun Zhang; Zhang-Jun Hu; Duncan Sutherland; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : A challenging task, in the area of magnetic resonance imaging is to develop contrast enhancers with built-in antioxidant properties. Oxidative stress is considered to be involved in the onset and progression of several serious conditions such as Alzheimer’s and Parkinson’s disease, and the possibility to use cerium-contained nanoparticles to modulate such inflammatory response has gained a lot of interest lately. LÄS MER

5. 34. Early Immunostimulatory Effects of IgE- and IgG Antibodies

   Författare :Fredrik Hjelm; Birgitta Heyman; Sandra Kleinau; Robert Harris; Uppsala universitet; []
   Nyckelord :Immunology; Antibodies; Fc receptors; Antigen presentation; B cells; T cells; Immunologi;

   Sammanfattning : Antibodies have the ability to influence their own production in a process called antibody feedback regulation. Depending on the type of antigen and the subclass of the antibody, the outcome of feedback regulation can be complete suppression or several hundred-fold enhancement of the antibody response. LÄS MER

7. 35. Magnetic resonance imaging in the evaluation of chronic Achilles tendinosis

   Författare :Anna Gärdin; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : The aim of the thesis was to evaluate magnetic resonance imaging (MRI) as an outcome in the evaluation of treatment in mid-portion Achilles tendinosis. Conventional MRI sequences, dynamic contrast enhanced MRI and measurement of transversal relaxation time, using an ultrashort time to echo sequence, has been evaluated. LÄS MER