Radiation doses and cancer
نویسندگان
چکیده
منابع مشابه
Radiation doses and cancer risks from breast imaging studies.
PURPOSE To compare radiation doses and lifetime attributable risks (LARs) of radiation-induced cancer incidence and mortality from breast imaging studies involving the use of ionizing radiation. MATERIALS AND METHODS Recent literature on radiation doses from radiologic procedures and organ doses from nuclear medicine procedures, along with Biologic Effects of Ionizing Radiation (BEIR) VII age...
متن کاملEstimating cancer risks from low doses of ionizing radiation.
Disagreements about the somatic risks from low doses of ionizing radiation stem from two difficulties fundamental to the logic of inference from observational data. First, precise direct estimation of small risks requires impracticably large samples. Second, precise estimates of low-dose risks based largely on high-dose data, for which the sample size requirements are more easily satisfied, mus...
متن کاملRespiratory motion effect on tumor and normal tissue doses in patients with lung cancer, treated with Intensity Modulation Radiation Therapy and Three Dimensional Conformal Radiation Therapy.
Introduction: The aim of this study is to investigate the effect of respiratory motion during radiation therapy in patient with lung cancer and comparison of dosimetric parameters between Intensity modulation radiation therapy and three-dimensional conformal radiotherapy in lung cancer. Materials and Methods: Two CT scan was performred for each pati...
متن کاملCan Cancer Be Treated with Low Doses of Radiation ?
Historical Background ABSTRACT Strong sources of radiation became available in the 1950s. Since then, intense ionizing beams have been employed against cancer to destroy or shrink tumors. Today, nearly all radiation treatments for cancer apply high doses to local regions of the body. It is generally believed that radiation in any amount will only damage cells and that the mutated cells could be...
متن کاملExtrapolating radiation-induced cancer risks from low doses to very low doses.
There is strong evidence that ionizing radiation increases cancer risks at high doses (e.g., >or=1 Gy), and persuasive, if controversial, epidemiological evidence that cancer risks are increased at low doses ( approximately 10 mGy). Discussed here are the issues related to extrapolating radiation risks from low radiation doses to very low doses (<or=1 mGy) - for which purpose we are forced to r...
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ژورنال
عنوان ژورنال: Nature
سال: 1991
ISSN: 0028-0836,1476-4687
DOI: 10.1038/350025b0