Purpose/Aim We evaluated radiation dose parameters using flat-panel detectors during fluoroscopic screening for gastric cancer. Materials and Methods We used flat-panel detector in 1286 patients who underwent gastric X-ray examination at our institution between 1 July 2015 and 31 August 2018. We evaluated the effective dose (mSv), dose-area product, PCXMC stomach dose, and entrance surface dose of the flat-panel detector during X-ray fluoroscopic screening for gastric cancer using population-based (standard radiography protocol I) and opportunistic screening (standard radiography protocol II). We also compared the radiation doses used by 14 radiological technologists for male vs. female patients using the flat-panel detector and standard radiography protocols I vs. II. Results Standard radiography protocol I values were: dose–area product: 2430.45 cGy·cm2; entrance surface dose: 71.05 mGy; PCXMC stomach dose: 80.03 mGy; and effective dose: 13.71 mSv vs. the standard radiography protocol II values of 2610.35 cGy·cm2, 100.27 mGy, 85.95 mGy, and 14.73 mSv, respectively. The effective dose was higher for men with both radiography protocols. There was a significant difference regarding the radiation dose when comparing radiological technologists and the two protocols. Conclusions In this study of radiation exposure during X-ray screening for gastric cancer, a flat-panel detector was found to be the detector with the highest effective dose. In the future, we will focus on reducing exposure and maintaining image quality.

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[in Japanese]

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[in Japanese]

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[in Japanese]

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[in Japanese]

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