Sökning: "gold fiducial marker"

Hittade 3 uppsatser innehållade orden gold fiducial marker.

  1. 1. Radiotherapy treatment strategy for prostate cancer with lymph node involvement

    Master-uppsats, Umeå universitet/Institutionen för fysik

    Författare :Amanda Östensson; [2023]
    Nyckelord :Radiotherapy; prostate cancer; lymph node; gold fiducial marker; multiple target;

    Sammanfattning : Radiotherapy is a common and useful method for treating prostate cancer, often using gold fiducial markers in the prostate as guidance. However, when there is a high risk of lymph node involvement, the independent motion of volumes causes complications in patient positioning since there is a choice between position against the gold fiducial markers or the bone anatomy. LÄS MER

  3. 2. Detectability of fiducial markers in an MRI-only radiotherapy treatment workflow for prostate

    Kandidat-uppsats, Lunds universitet/Fysiska institutionen

    Författare :Sevgi Emin; [2017]
    Nyckelord :prostate cancer; fiducial markers; CT; MRI; MRI-only workflow; Physics and Astronomy;

    Sammanfattning : In a conventional prostate cancer radiotherapy treatment workflow, computed tomography (CT) and magnetic resonance imaging (MRI) are used for radiotherapy treatment planning and target delineation. MRI is necessary in the process due to better soft tissue contrast compared to CT-images. LÄS MER

  4. 3. MRI only radiotherapy using synthetic CT images: Dosimetric accuracy and patient positioning strategies in an MRI only workflow

    Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen; Lunds universitet/Medicinsk strålningsfysik, Lund

    Författare :Emilia Persson; [2015]
    Nyckelord :Medicine and Health Sciences;

    Sammanfattning : Background and purpose: Magnetic resonance imaging (MRI) only radiotherapy has, due to superior soft tissue contrast of MRI and the possible reduction of systematic uncertainties, grown into a promising technique. The purpose of this work is to investigate parts of an MRI only workflow with synthetic computed tomography (sCT) images generated from MRI. LÄS MER