心臓カテーテル検査における推定被曝線量解析ソフトの開発と放射線照射部位の推定
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概要
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We developed software for estimating exposure doses and radiation exposure regions in cardiac catheterization inspection. In the software, the back of a thoracic phantom were divided into a total of 21 square blocks with a width of 30 degrees. Furthermore, we developed a system with which reference air kerma is distributed to each of the above blocks in accordance with the distribution ratio calculated from the data obtained by the system, and the calculation results are displayed. Coronary angiography was performed using thoracic phantoms, and actual measurements were obtained using a fluoroglass dosimeter. The calculated results obtained using the software were compared to the measured results. An almost identical tendency was seen, and the radiation regions of the top three estimated exposure doses were successfully estimated. Radiation region estimation using this software is affected by exposure time as one of its properties. This software enables estimating radiation exposure regions and exposure doses.
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