View clinical trials related to Radiation Exposure.
Filter by:The purpose of this study is to evaluate the effectiveness of a novel digital image enhancement (DIE) technology in reducing the radiation exposure to both the patient and surgical staff during standard intramedullary nail placement for treatment of hip fractures. Secondarily, to evaluate whether the image quality and reproducibility of desired images can be improved with use of the DIE technology. Finally, to evaluate whether DIE technology reduces total operative time.
This is a collaborative study by the National Cancer Institute, Columbia University, and the Southern Urals Biophysics Institute in Russia. It will examine the relationship of differences in certain genes to the development of chromosomal abnormalities in workers at the Mayak nuclear production plant in Ozyorsk, Russia. This population was exposed to higher radiation doses from external and internal sources than those received by their counterparts in other countries or considered permissible today. If a risk relationship is found between genetic differences and chromosome abnormalities, the information might be useful in studies designed to examine how high radiation exposures cause cancer. Radiation-exposed Mayak workers employed from 1948 to 1972 in the three Ozyorsk plants directly related to nuclear weapons production may be eligible for this study. They must have remained local residents in the area and estimates of their external and internal radiation exposures must be available. Participants provide a blood sample for genetic studies and answer a questionnaire that includes demographic information and information about their family health history, history of benign tumors, if any, and history of smoking and alcohol consumption. Additional information is collected from patients' medical records. ...