Precision Control on Gastric Mass Screenings by Use of Computer in a Rural District
This is a report on the precision controlled gastric mass screenings conducted under the sponsorship of the Welfare Federation of Agricultural Cooperatives in Nagano Prefecture and the assessment test using some samples of radiographic stomach images. Physicians and x-ray technicians participated in...
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Published in | JOURNAL OF THE JAPANESE ASSOCIATION OF RURAL MEDICINE Vol. 42; no. 1; pp. 16 - 23 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | Japanese English |
Published |
THE JAPANESE ASSOCIATION OF RURAL MEDICINE
1993
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Abstract | This is a report on the precision controlled gastric mass screenings conducted under the sponsorship of the Welfare Federation of Agricultural Cooperatives in Nagano Prefecture and the assessment test using some samples of radiographic stomach images. Physicians and x-ray technicians participated in the test and interpreted in their own ways the radiographs of 30 healthy cases and 20 cases of cancer of the stomach. Experienced physicians and technicians made better scores on the test than those less experienced in reading radiographs. Physicians read a little better that technicians in checkups of different parts regardless of years of experience, but the difference was not significant. In terms of FP and FN percentages (?), physicians scored 40.5% and 20.8% on the first tryout, and 34.0% and 29.0% on the second tryout. The 1988 mass screening found 67.4% of cancer in antral and angular areas and 23.8% on the lesser curvature side of the angular area. Grade 5 means that “No doubt about the existence of cancerous lesions.” In the 1983 screening, 25% of the grade 5 cases turned out to be nothing wrong upon close examination. The figure went down to 5.9% in the 1988. |
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AbstractList | This is a report on the precision controlled gastric mass screenings conducted under the sponsorship of the Welfare Federation of Agricultural Cooperatives in Nagano Prefecture and the assessment test using some samples of radiographic stomach images. Physicians and x-ray technicians participated in the test and interpreted in their own ways the radiographs of 30 healthy cases and 20 cases of cancer of the stomach. Experienced physicians and technicians made better scores on the test than those less experienced in reading radiographs. Physicians read a little better that technicians in checkups of different parts regardless of years of experience, but the difference was not significant. In terms of FP and FN percentages (?), physicians scored 40.5% and 20.8% on the first tryout, and 34.0% and 29.0% on the second tryout. The 1988 mass screening found 67.4% of cancer in antral and angular areas and 23.8% on the lesser curvature side of the angular area. Grade 5 means that “No doubt about the existence of cancerous lesions.” In the 1983 screening, 25% of the grade 5 cases turned out to be nothing wrong upon close examination. The figure went down to 5.9% in the 1988. |
Author | YAMASE, Sachihiko OKA, Akira CHUMAN, Yasuo USUI, Kenji NUMATA, Masaki KUSANO, Ken SHIMIZU, Zenji SHAURA, Kozo |
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References | 9) 池田成之: 発見胃癌における他部位チェック例の検討, 消化器集団検診: 78, 22, 1988. 8) 山崎秀男: 胃集検における他部位チェック発見癌の実態とその意義, 消化器集団検診: 78, 36, 1988. 7) 草野健: 胃間接X線における他部位チェックの実態とその意味, 消化器集団検診: 78, 55, 1988. 1) 土井偉誉: 胃集検の精度管理, 第28回日本消化器集団検診学会総会, シンポジウムII, 消化器集団検診: 90, 73, 1991. 4) 島本福雄: 胃集検における偽陰性例の検討, 胃癌と集団検診: 42, 30, 1979. 9) 増田幸久: 間接X線読影と判定基準-5段階読影判定基準の運用法, 消化器集団検診: 75, 49, 1987. 5) 中馬康男: 発見胃癌における他部位チェックの実態, 第26回日本消化器集団検診学会総会, シンポジウンIII, 司会総括: 76, 156, 1987. 3) 菅原伸之: 胃集検における偽陰性例の実態, 胃癌と集団検診: 42, 25, 1979. 2) 清水善次: 長野県厚生連胃集検間接X線写真読撮精度の検討, 消化器集団検診: 74, 127, 1987. |
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Title | Precision Control on Gastric Mass Screenings by Use of Computer in a Rural District |
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