Sökning: "magnetic resonance imaging"

Visar resultat 1 - 5 av 558 avhandlingar innehållade orden magnetic resonance imaging.

  1. 1. Technomedical Visions Magnetic Resonance Imaging in 1980s Sweden

    Detta är en avhandling från Stockholm : KTH

    Författare :Isabelle Dussauge; KTH.; [2008]
    Nyckelord :HUMANIORA; HUMANITIES; HUMANITIES and RELIGION History and philosophy subjects History subjects History of technology; HUMANIORA och RELIGIONSVETENSKAP Historisk-filosofiska ämnen Historieämnen Teknikhistoria; anatomy; body; NMR; psychiatry; radiology; representations; Sweden; visual studies; history of medicine; history of technology; laboratory science; magnetic resonance; mediation; medical gaze; medical imaging; MRI;

    Sammanfattning : The medical imaging technology called MRI (magnetic resonance imaging) stems from a blind measurement technology which was further developed in research and practice to enable seeing into the inner body. Vision with MRI was open-ended, and it was developed and tamed in a context of fragmented medical perspectives on the body and on technology. LÄS MER

  2. 2. Multidimensional magnetic resonance imaging : new methods for analysis of cardiovascular dynamics

    Detta är en avhandling från Linköping : Linköpings universitet

    Författare :Lars Wigström; Linköpings universitet.; Linköpings universitet.; Linköpings universitet.; [2003]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICINE; MEDICIN;

    Sammanfattning : Cardiovascular flow and motion occur in three-dimensional (3D) space and vary dynamically over the cardiac cycle. The description of these complicated patterns using non-invasive imaging requires new tools for data acquisition, processing and visualization. LÄS MER

  3. 3. Diffusion tensor magnetic resonance imaging of the brain Tractography analysis with application in healthy individuals and patients

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Johanna Mårtensson; Uppsala universitet.; [2017]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Magnetic Resonance Imaging; Diffusion Tensor Imaging; Tractography; white matter tracts; Radiology; Radiologi;

    Sammanfattning : In study 1, thirty-eight healthy controls were used for optimization of the method. Fifteen patients with progressive supranuclear palsy and an equal number of age-matched healthy controls underwent diffusion tensor MRI and were then investigated and compared groupwise. LÄS MER

  4. 4. Quality assurance for magnetic resonance imaging (MRI) in radiotherapy

    Detta är en avhandling från Umeå : Medical Faculty, Umeå University

    Författare :Mary Adjeiwaah; Umeå universitet.; [2019]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; magnetic resonance imaging; MRI; radiotherapy; RT; geometric distortions; magnetic susceptibility; B0 maps; quality assurance; radiofysik; radiation physics;

    Sammanfattning : The use of Magnetic Resonance Imaging (MRI) in the radiotherapy (RT) treatment planning workflow is increasing. MRI offers superior soft-tissue contrast compared to Computed Tomography (CT) and therefore improves the accuracy in target volume definitions. LÄS MER

  5. 5. Cerebral blood flow distribution, collateral function and pulsatility in healthy and in patients with symptomatic carotid stenosis  a magnetic resonance imaging approach

    Detta är en avhandling från Umeå : Umeå universitet

    Författare :Laleh Zarrinkoob; Umeå universitet.; Umeå universitet.; [2019]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Aging; Arterial pulsatility; Carotid stenosis; Cerebral arteries; Cerebral blood flow; Cerebral collateral blood flow; Circle of Willis; Phase contrast magnetic resonance imaging;

    Sammanfattning : Background: For the detection and treatment of early cerebral vascular disease it is of paramount importance to first understand the normal physiology of the cerebral vasculature, and subsequently, to understand how and when pathology can develop from that. This is especially important as the population above 65 years of age is increasing and aging itself is an established risk factor for the development of cerebral vascular disease. LÄS MER