Sökning: "Photon therapy"

Visar resultat 21 - 25 av 59 avhandlingar innehållade orden Photon therapy.

  1. 21. Secondary absorbed dose distributions and radiation quality in light ion therapy

    Författare :Martha Hultqvist; Irena Gudowska; Tatsuhiko Sato; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; secondary doses; light ion therapy; radiation quality; Monte Carlo simulation; Medical Radiation Physics; medicinsk strålningsfysik;

    Sammanfattning : Radiotherapy with light ions offers the possibility of achieving a dose distribution which is highly conformed to the target volume while sparing normal tissues. For ions heavier than protons, an additional advantage is the increased Relative Biological Effectiveness (RBE) as compared to conventional photon and electron beams. LÄS MER

  3. 22. Systemic effects after ionizing radiation exposure: Genome-wide transcriptional analysis of mouse normal tissues exposed to (211)At, (131)I, or 4 MV photon beam

    Författare :Britta Langen; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; microarray; radiogenomics; systemic effects; biomarker; radionuclide therapy; radionuclide therapy;

    Sammanfattning : The radionuclides 131I and 211At are used or proposed for a variety of cancer treatments. Both radiohalogens exhibit considerable uptake in the thyroid gland and–to a lower degree–in various other tissues if they are unbound or released from a cancer-targeting agent. LÄS MER

  4. 23. Radiation burden from modern radiation therapy techniques including proton therapy for breast cancer treatment - clinical implications

    Författare :Anna M. Flejmer; Alexandru Dasu; Gunnar Adell; Olle Stål; Margaretha Stenmarker; Thomas Björk-Eriksson; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : The purpose of this thesis was to study the clinical implications of modern radiotherapy techniques for breast cancer treatment. This was investigated in several individual studies. LÄS MER

  5. 24. Dosimetry and radiation quality in fast-neutron radiation therapy : A study of radiation quality and basic dosimetric properties of fast-neutrons for external beam radiotherapy and problems associated with corrections of measured charged particle cross-sections

    Författare :Jonas Söderberg; Gudrun Alm Carlsson; Crister Ceberg; Linköpings universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Neutron; Dosimetry; Radiotherapy; Monte Carlo; Microdosimetry; Cross-section; RBE; LET; Energy-loss corrections; Radiological physics; Radiofysik;

    Sammanfattning : The dosimetric properties of fast-neutron beams with energies ≤80 MeV were explored using Monte Carlo techniques. Taking into account transport of all relevant types of released charged particles (electrons, protons, deuterons, tritons, 3He and α particles) pencil-beam dose distributions were derived and used to calculate absorbed dose distributions. LÄS MER

  7. 25. The balancing act of living with symptoms. Patient-reported data and quality of care during and after treatment with proton beam therapy in patients with brain tumors

    Författare :Ulrica Langegård; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; brain tumor; proton beam therapy; conventional radiotherapy; illness; symptom experience; symptom cluster; health related quality of life; quality of care;

    Sammanfattning : is thesis focuses on patients with primary brain tumors undergoing proton beam therapy (PBT) and the consequences of the treatment. Quality of care (QoC) in a recently established clinic in Sweden was also evaluated. LÄS MER