Journal of Medical Physics (Jan 2019)

Effective dose display system in gastric cancer X-ray screening

  • Kenyu Yamamoto,
  • Naoko Fujiwara,
  • Masahiko Kiyama,
  • Yoshihiro Takeda,
  • Tadao Kuwano,
  • Toshizo Katsuda,
  • Masami Azuma,
  • Toshinori Ito

DOI
https://doi.org/10.4103/jmp.JMP_78_18
Journal volume & issue
Vol. 44, no. 1
pp. 35 – 38

Abstract

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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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