Sökning: "partiella volymseffekter"

Hittade 1 uppsats innehållade orden partiella volymseffekter.

  1. 1. Correction for partial volume effects in PET imaging

    Uppsats för yrkesexamina på avancerad nivå, Radiofysik; Institutionen för fysik

    Författare :Elin Wallstén; [2011]
    Nyckelord :PET; partial volume effects; PVE; recovery coefficients; deconvolution; point spread function; PSF; PET; partiella volymseffekter; pve; avfaltning; punktspridningsfunktion; PSF;

    Sammanfattning : The limited spatial resolution in positron emission tomography (PET) images leads to difficulties to measure correct uptake in tumours. This is called partial volume effects (PVE) and can lead to serious bias, especially for small tumours. Correct uptake values are valuable for evaluating therapies and can be used as a tool for treatment planning. LÄS MER