Sökning: "FEXI"

Hittade 2 uppsatser innehållade ordet FEXI.

  1. 1. Diffusion-Based MR Methods for Measuring Water Exchange

    Master-uppsats, Linköpings universitet/Institutionen för medicinsk teknik

    Författare :Shan Cai; [2022]
    Nyckelord :diffusion MRI; water exchange rate; membrane permeability; double diffusion encoding; DDE;

    Sammanfattning : Measuring transmembrane water exchange can provide potential biomarkers for tumors and brain disorders. Diffusion Magnetic Resonance Imaging (dMRI) is a well-established tool that can non-invasively measure water exchange across cell membranes. Diffusion Exchange Spectroscopy (DEXSY) is one of the dMRI-based frameworks used to estimate exchange. LÄS MER

  3. 2. Protocol optimization of the filter exchange imaging (FEXI) sequence and implications on group sizes : a test-retest study

    Uppsats för yrkesexamina på avancerad nivå, Institutionen för informationsteknologi

    Författare :Björn Lampinen; [2012]
    Nyckelord :DWI; diffusion; FEXI; MRI; fisher information; CRLB; active imaging;

    Sammanfattning : Diffusion weighted imaging (DWI) is a branch within the field of magnetic resonance imaging (MRI) that relies on the diffusion of water molecules for its contrast. Its clinical applications include the early diagnosis of ischemic stroke and mapping of the nerve tracts of the brain. LÄS MER