Sökning: "Absorbed dose"

Visar resultat 11 - 15 av 130 avhandlingar innehållade orden Absorbed dose.

  1. 11. Radiographic imaging in relation to the mandibular third molar : tooth characteristics, modality choice, optimization, and absorbed dose

    Författare :Josefine Cederhag; Kristina Hellén-Halme; Henrik Lund; Malmö universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : Radiographic imaging of the mandibular third molar (M3) is a valuable diagnostic tool. It provides information on tooth position, root morphology, and relations to surrounding anatomical structures that facilitates diagnosis and treatment planning. LÄS MER

  3. 12. Thyroid Stunning. Effect of Absorbed Dose, Dose Rate and Type of Radiation

    Författare :Charlotta Lundh; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : .... LÄS MER

  4. 13. Patient Outcomes after Radiotherapy of Prostate Cancer. Impact of Absorbed Dose and Treated Volume

    Författare :Elisabeth Rasmusson; LUCC: Lunds universitets cancercentrum; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Prostate cancer diagnosis; radiotherapy; brachytherapy; external beam; Dose- response; side effects; erectile dysfunction; lymphedema; hip osteoarthritis; Fractionation;

    Sammanfattning : Abstract Backgound Prostate cancer is the most common form of cancer in men in Sweden. Radiotherapy, including external beam radiation therapy (EBRT) and brachytherapy (BT), is important treatment alternatives to surgery and active surveillance. LÄS MER

  5. 14. Evaluation of absorbed dose uncertainty in modulated radiotherapy plans

    Författare :Julia Götstedt; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : The purpose of this work was to develop and evaluate methods to meet the challenges of quality control (QC) for modulated radiotherapy plans. It was shown that nine of 15 intensity modulated radiotherapy (IMRT) plans, with deliberately introduced dose errors larger than 5% in at least one evaluated dose volume histogram (DVH) metric, were not detected with a QC method which combined Delta4 (ScandiDos) measurements and internationally recommended criteria for evaluation (Paper I). LÄS MER

  7. 15. Small-Scale Absorbed Dose Modelling in Selective Internal Radiation Therapy : Microsphere Distribution in Normal Liver Tissue

    Författare :Jonas Högberg; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; clusters; dosimetry; heterogeneity; liver; microspheres; radioembolisation; simulations; SIRT; surgery; yttrium-90;

    Sammanfattning : Radioembolisation (RE), with yttrium-90 (90Y) labelled microspheres, is an increasingly common treatment method for unresectable liver tumours. The tolerable mean absorbed dose for normal liver (NL) tissue is higher in RE than in External Beam Radiation Therapy (EBRT); absorbed dose heterogeneity is thought to be one important reason, together with a low absorbed dose rate, but the knowledge of microsphere distributions is limited. LÄS MER