Search for dissertations about: "Radiological safety"
Showing result 1 - 5 of 18 swedish dissertations containing the words Radiological safety.
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1. Evaluation and treatment of pelvic organ prolapse : clinical, radiological and histopathological aspects
Abstract : Objective: To assess the use of cystodefecoperitoneography (CDP) in clinical and radiological diagnosis of cystocele; to study the correlation between clinical and radiological findings at CDP and to evaluate if anatomical topography and structural abnormality corresponds to symptomatic presentation when assessing posterior vaginal wall prolapse; to evaluate if xenograft used at rectocele repair was associated with adverse clinical and histological inflammatory reactions; to prospectively examine if rectocele repair using xenograft is a safe method providing satisfactory clinical and symptomatical outcome; and to investigate the prevalence and risk factors of genital prolapse and urinary incontinence in female patients operated for rectal prolapse. Methods: The following methods were used: The Pelvic organ prolapse quantification system (POPQ), CDP, bowel function questionnaires, pelvic floor surveys, histological, histopathological and clinical inflammatory quantification. READ MORE
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2. Dose Management in Diagnostic Radiology - application of the DICOM imaging standard and a Monte Carlo dose engine for exposure surveillance
Abstract : Ionizing radiation is used in diagnostic radiology with a large contribution to the health of the patients. The regulations to limit the detrimental effects, e.g. cancer induction, are based on recommendations from the International Commission on Radiological Protection (ICRP). READ MORE
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3. Radionuclides in the Baltic Sea : Ecosystem models and experiments on transport and fate
Abstract : Manmade radionuclides have been introduced to the environment for almost a century. The main source has been the nuclear weapons testing programmes, but accidental releases from the nuclear power production industries have also contributed. The risk to humans from potential releases from nuclear facilities is evaluated in safety assessments. READ MORE
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4. Developing and evaluating dose calculation models for verification of advanced radiotherapy
Abstract : A prerequisite for modern radiotherapy is the ability to accurately determine the absorbed dose (D) that is given to the patient. The subject of this thesis has been to develop and evaluate efficient dose calculation models for high-energy photon beams delivered by linear accelerators. READ MORE
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5. Internal Dosimetry in Nuclear Fuel Fabrication : Occupational Exposure to Uranium Aerosols
Abstract : The production of nuclear fuel can be associated with occupational exposure to ionizing radiation from radioactive decay of uranium. Such exposure must be sufficiently low and radiation doses adequately determined. Radiation doses from internal exposure, i.e. READ MORE