Search for dissertations about: "radiation dose"

Showing result 16 - 20 of 398 swedish dissertations containing the words radiation dose.

  2. 16. Cone Beam Computed Tomography - radiation dose and image quality assessments

    Author : Sara Lofthag-Hansen; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cone beam computed tomography; anatomic landmarks; dose-area product; image quality; implant planning; periapical diagnosis; radiation dosimetry;

    Abstract : Diagnostic radiology has undergone profound changes in the last 30 years. New technologies are available to the dental field, cone beam computed tomography (CBCT) as one of the most important. READ MORE

  4. 17. Modelling late toxicity in hypofractionated radiation therapy

    Author : Niclas Pettersson; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Hypofractionation; normal tissue complication probability; modelling; linear-quadratic model; fractionation sensitivity; late toxicity; radiation-induced rib fracture; genitourinary toxicity; stereotactic body radiation therapy; high-dose-rate brachytherapy; multimodality radiation therapy; patient-reported outcomes; prostate cancer; nsclc;

    Abstract : In hypofractionated radiation therapy (RT), the treatment is delivered by few fractions with high doses per fraction. This is in contrast to conventionally fractionated RT where the total dose is delivered in many fractions with low doses per fraction. READ MORE

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

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

    Abstract : .... READ MORE

  6. 19. Secondary absorbed dose distributions and radiation quality in light ion therapy

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

    Abstract : 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. READ MORE

  7. 20. Factors modifying cellular response to ionizing radiation

    Author : Lei Cheng; Andrzej Wojcik; Siamak Haghdoost; Lovisa Lundholm; Penelope A. Jeggo; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Radiation biology; DNA damage; gene expression; alpha particles; X-rays; mixed beams; gamma rays; hypothermia; dose rate.; molekylär biovetenskap; Molecular Bioscience;

    Abstract : Many physical factors influence the biological effect of exposure to ionizing radiation, including radiation quality, dose rate and temperature. This thesis focuses on how these factors influence the outcome of exposure and the mechanisms behind the cellular response. READ MORE