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- W2908092404 abstract "Abstract In Coronary Computed Tomography-Angiography (CCTA) examination with relatively high dose in CT examination, we report the organ dose and the effective dose received at the time of radiography was evaluated. A thermoluminescence dosimeter (TLD) and a human body phantom were used to measure the actual measurement value. The TLD element was calibrated with a line quality equivalent to the effective energy of the CT apparatus used in our hospital. Thereafter, the TLD element was embedded in a human body phantom, each organ dose was measured, and the effective dose was calculated. The radiography conditions were conditions used in clinical using, and the radiographing range was the average value in the actual clinical range. Effective dose was calculated from Dose Length Product: DLP (mGy cm) and the value calculated by the conversion factor k factor of ICRP Publ.102 of display value. Next, each organ dose was calculated using simulation software under the same imaging conditions. We used WAZA-ARI v2 for simulation software. Each organ dose showed the largest difference between the phantom study and the simulated software among the organ doses of 1 mGy or more was a stomach about twice the difference. As a result of calculating Pearson's product moment correlation coefficient with the phantom study and simulation software, there was a positive correlation (r = 0.9009 P" @default.
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- W2908092404 date "2019-05-01" @default.
- W2908092404 modified "2023-09-27" @default.
- W2908092404 title "Evaluation of Radiation Dose in Coronary Computed Tomography-Angiography Examinations: Using Organ dose and Effective dose" @default.
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- W2908092404 doi "https://doi.org/10.1016/j.radphyschem.2018.12.029" @default.
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