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Visar resultat 1 - 5 av 17 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Pushing diffusion MRI towards new dimensions

   Författare :Joao Martins; Fysikalisk kemi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NMR; MRI; diffusion; relaxation; multidimensional diffusion MRI; relaxation-diffusion correlations; Laplace NMR; porous media; tissue microstructure; heterogeneity; anisotropy;

   Sammanfattning : Diffusion-MRI techniques allow the non-invasive investigation of microstructural changes in living tissues. However, a detailed interpretation of the data is complicated by the fact that multiple microscopic environments with varying diffusion properties all contribute to the measured signal. LÄS MER

3. 2. Gadodiamide injection for Enhancement of MRI in the CNS. Applications, dose, field and time dependence

   Författare :Per Åkeson; Malmö Diagnostisk radiologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Clinical physics; Phantom study.; Comparative study; Human; Time dependence; Dosage; Enhancement; Gadolinium; MRI contrast media; Contrast media; Magnetic resonance imaging; Spine; Brain neoplasms; secondary; Brain; radiology; tomography; medical instrumentation; Klinisk fysiologi; radiologi; tomografi; medicinsk instrumentering;

   Sammanfattning : Aims of the study The aims of this study using Gadodiamide injection were to investigate: · Whether Gadodiamide injection was comparable to Gd-DTPA for the enhancement of CNS lesions. · The contrast effect at different field strengths. · The effective time-window for the enhancement of blood-brain barrier damage. LÄS MER

4. 3. MRI with MR Angiography in Endovascular Repair of Abdominal Aortic Aneurysms

   Författare :Lena Engellau; Malmö Diagnostisk radiologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; medical instrumentation; Klinisk fysiologi; radiologi; tomografi; medicinsk instrumentering; tomography; radiology; Clinical physics; Contrast media complications; Cost analysis; MR velocity mapping; Artefacts; MR imaging safety; MR angiography; MR imaging; Endovascular repair; Stent-graft; aortic; Aneurysm;

   Sammanfattning : The aim of this study was to evaluate MRI with contrast enhanced MR angiography (MRI/CE MRA) as imaging method before and after endovascular repair of abdominal aortic aneurysms (AAA). A 1.5 T scanner was used for all examinations. In this prospective study 26 consecutive patients were included. LÄS MER

5. 4. Inner ear proteomics and barriers : Clinical and experimental findings

   Författare :Jesper Edvardsson Rasmussen; Göran Laurell; Per Olof Eriksson; Helge Rask-Andersen; Jonas Bergquist; Måns Magnusson; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Vestibular schwannoma; Hearing loss; Inner ear; Proteome; Perilymph; Endolymph; Furosemide; NKCC1; Fetuin-A; Complement component factor-H realted protein 2; CFHR2; Inflammation; MRI; Oto-Rhino-Laryngology; Oto-rhino-laryngologi; Medical Cell Biology; Medicinsk cellbiologi;

   Sammanfattning : Hearing is important in many aspects of life, including communication, assessing one’s surroundings, entertainment and social interaction. Hearing loss is common and according to the Global Burden of Disease Study, 5% of the global population require hearing rehabilitation (1). LÄS MER

7. 5. Theranostics in radiology : development of targeted contrast media with treatment capability

   Författare :Åsa Barrefelt; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Imaging is essential in the diagnostics and medicine of today. The development of new contrast agents is important for obtaining specific information from images and to distinguish disease. Microbubbles (MB) have previously been introduced as a contrast agent for ultrasound. LÄS MER