Search for dissertations about: "organs at risk"
Showing result 1 - 5 of 134 swedish dissertations containing the words organs at risk.
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1. Phosphatidylethanol - formation and degradation in blood and organs
Abstract : Phosphatidylethanol (PEth) is an abnormal phospholipid formed exclusively by the action of phospholipase D (PLD) in the presence of ethanol. The degradation of PEth is slow and due to its accumulation in some cells the possibility to use PEth as marker of ethanol intake has been proposed. READ MORE
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2. SBRT of large tumors and tumors located near organs at risk in the thoracic cavity
Abstract : Stereotactic Body Radiotherapy (SBRT) is a non-invasive ablative radiation therapy developed at Karolinska University Hospital in the early 90-s. Its basic principles are highly focused inhomogeneous dose load with rapid fall of in the periphery of the target, delivered in few fractions with high-doses per fraction. READ MORE
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3. On ionising radiation and breast cancer risk
Abstract : Background: It is well known that exposure to ionising radiation increases the risk for breast cancer occurrence. However, better understanding of breast cancer risks in terms of dose-response relationships formulated according to radiobiological target theories, age-at-exposure patterns and temporal dependence are important for the understanding of the underlying biological mechanism of radiation carcinogenesis as well as for the concern about possible risks associated with the very low doses received from routine mammographic screening. READ MORE
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4. Steroid metabolism in human reproductive organs
Abstract : Androgens are involved in the development of prostate cancer. Both UGT2B17 and CYP7B1 are involved in the metabolism of androgens and are highly abundant in the prostate. Deletion of the UGT2B17 gene is associated with low or undetectable urinary testosterone levels. READ MORE
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5. Radiation dose and related risk in interventional cardiology
Abstract : Cardiac catheterization procedures are classified as high radiation dose procedures, European Directive 2013/59/Euratom, and may result in skin injuries (deterministic effects) and/or increased cancer risk (stochastic effects). The radiation-induced effects can be expressed differently depending on whether the patient is a child or an adult. READ MORE