Sökning: "diffusion weighted MRI"
Visar resultat 26 - 30 av 39 avhandlingar innehållade orden diffusion weighted MRI.
26. Penumbra oxygen metabolism and acute neuroinflammation in ischemic stroke : MRI and PET imaging of a M2 occlusion model in rat
Sammanfattning : Acute ischemic stroke (AIS) is caused by the sudden occlusion of a major artery of the brain, and results in infarction and severe ischemia within affected brain regions. If ischemic regions are rapidly revascularized, the neurological disability resulting from AIS can be significantly reduced. LÄS MER
27. Diffusion magnetic resonance imaging for investigating alterations in brain organization after injury during early development : with specific reference to the motor and visual system
Sammanfattning : Disturbances or injuries to the brain during early development cause different types of structural abnormalities, depending mainly on the stage of maturation of the brain at the time of the insult. These are, herein, collectively referred to as early brain lesions. LÄS MER
28. Experimental and clinical perspective on stroke : evaluation by behavior, magnetic resonance imaging and morphology
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
29. Carcinoma of the uterine cervix: aspects on preoperative staging and assessment of treatment effect using magnetic resonance imaging
Sammanfattning : Background: Uterine CC mainly affects young women as it is caused by persistent HPV infection most often acquired during adolescence. Early-stage disease is treated with surgery, and locally advanced disease with chemoradiotherapy. Both treatment methods are associated with infertility and morbidity. LÄS MER
30. Inverse Mathematical Models for Brain Tumour Growth
Sammanfattning : We study the following well-established model of reaction-diffusion type for brain tumour growth:This equation describes the change over time of the normalised tumour cell density u as a consequence of two biological phenomena: proliferation and diffusion.We discuss a mathematical method for the inverse problem of locating the brain tumour source (origin) based on the reaction-diffusion model. LÄS MER