Sökning: "phase-contrast MRI"

Visar resultat 1 - 5 av 22 avhandlingar innehållade orden phase-contrast MRI.

  1. 1. Assessment of Renal Physiology Using Functional MRI

    Författare :Per Eckerbom; Per Liss; Fredrik Palm; Peter Hansell; Jarl Jakobsen; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Kidney; Renal; MRI; Phase contrast; ASL; BOLD; DWI; T1; COVID-19; Radiology; Radiologi;

    Sammanfattning : Kidney injury is a major cause of morbidity and mortality throughout the world, leading to substantial individual suffering and to a heavy financial burden for the society. A large number of common conditions such as diabetes, hypertension, autoimmune diseases and infections are highly associated with kidney injury. LÄS MER

  3. 2. Volumetric MRI measurements of velocity and flow - Accuracy, visualisation and technical improvements

    Författare :Anders Nilsson; Lund Medicinsk strålningsfysik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MRI; 4D flow; phase contrast MRI; velocity mapping;

    Sammanfattning : In the last two decades, phase-contrast magnetic resonance imaging (PC-MRI) has evolved from two-dimensional velocity and flow measurements to volumetric, time-resolved depictions of velocity fields (4D PC). The acquisition of time-resolved velocity fields allows flow visualisations that might provide better understanding of the dynamics of the cardiac system. LÄS MER

  4. 3. Flow quantification using MRI techniques : evaluation and correction of errors in phase-contrast angiography, and development of a method using balanced steady-state free procession sequences

    Författare :Kerstin M Lagerstrand; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; phase-contrast; balanced steady-state free precession; test object; computer simulation; accuracy;

    Sammanfattning : .... LÄS MER

  5. 4. Accuracy and reproducibility in phase contrast magnetic resonance imaging

    Författare :Per Thunberg; Freddy Ståhlberg; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : Magnetic resonance imaging (MRI) is an imaging modality which provides good conditions for studies of flow and motion in the cardiovascular system. When using the phase contrast imaging technique, it is possible to perform velocity measurements in moving tissues and in blood. LÄS MER

  7. 5. Three-dimensional Intracardiac Flow Studied with Time Resolved Phase Contrast MRI : blood flow in the human left atrium and ventricle

    Författare :Anna Fyrenius; Jan Engvall; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : .... LÄS MER