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 inJOURNAL OF THE JAPANESE ASSOCIATION OF RURAL MEDICINE Vol. 42; no. 1; pp. 16 - 23
Main Authors SHAURA, Kozo, USUI, Kenji, SHIMIZU, Zenji, OKA, Akira, NUMATA, Masaki, YAMASE, Sachihiko, KUSANO, Ken, CHUMAN, Yasuo
Format Journal Article
LanguageJapanese
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.
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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  fullname: SHIMIZU, Zenji
  organization: The Study Group of Gastroenterological Mass Survey of Nagano Prefectural Welfare Federation of Agricultural Cooperatives
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  fullname: YAMASE, Sachihiko
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  fullname: KUSANO, Ken
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  fullname: CHUMAN, Yasuo
  organization: Kagoshima Prefectural Welfare Federation of Agricultural Cooperatives
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