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Published on: May 1, 2019
Effective Dose Display System in Gastric Cancer X-ray Screening
Kenyu Yamamoto1, Naoko Fujiwara2, Masahiko Kiyama1
1Department of Radiology, Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka, Japan.
Purpose:
The purpose of this study is to build a system for effective dose display immediately after the gastric cancer X-ray screening.
Materials And Methods:
The regression equation of effective dose and dose area product (DAP) was introduced from the data of 500 persons including DAP and effective dose calculated using program for X-ray Monte Carlo.
Results:
The effective dose was 5.39 mSv of median, 1.18 mSv of minimum, and 38.38 mSv of maximum. The regression equation was Y=0.354+0.0003772X (Y: effective dose, mSv, X: DAP, mGy cm2). Using the regression equation, the effective dose can be estimated from DAP and displayed just after the individual screening.
Conclusions:
"Effective dose display system" was constructed to display effective dose immediately after gastric cancer X-ray screening. This system is on the way to be reformed by improving the regression equation on larger data.
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