Avancerad sökning

Hittade 4 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Radiotherapy for head and neck cancer : costs and benefits of time, dose and volume

    Författare :Karin Söderström; Björn Zackrisson; Werner Dubrowsky; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; radiotherapy; head and neck cancer; adjuvant treatment; accelerated fractionation; biomedicinsk strålningsvetenskap; Biomedical Radiation Science;

    Sammanfattning : Background In the treatment of head and neck cancers (HNCs), radiotherapy (RT) has the advantage of organ preservation compared to surgery. However, treatment toxicities associated with RT can affect important functions for everyday life, both in the acute and late stage. LÄS MER

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

    Författare :Mary Adjeiwaah; Tufve Nyholm; Anders Garpebring; Joakim Jonsson; Sofie Ceberg; Umeå universitet; []
    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

  4. 3. Improvement of electron beam dosimetry using accurate energy-range and photon background models

    Författare :Bruno Bakhtiyar Sorcini; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Kärnfysik; Radioaktivitet; Medicin; Radioterapi; Elektrondosimetri;

    Sammanfattning : .... LÄS MER

  5. 4. Microdosimetric description of beam quality and biological effectiveness in radiation therapy

    Författare :Aris Tilikidis; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Dose-response relationship; radiation; Radiotherapy: adverse effects; Radiotherapy dosage; Radiotherapy planning; computer-assisted; Strålningsfysik; Medicin Radioterapi;

    Sammanfattning : .... LÄS MER