The results of individual screening system for gastric cancer in Toyohashi city

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The results of individual medical screening system for gastric cancer in Toyohashi city from 1998 to 2002 fiscal year were examined. The contrast media of X ray inspection was unified to use high concentration low viscosity barium. And the number of sheeted X ray photography was unified into nine in principle. The number of enrolled persons of an individual medical screening system increased from 3528 in 2000 to 8500 in 2002. The total number enrolled with an indirect X-ray mass screening system was amounted to 12428 in 2002 from 5464 in 1998. The subjects had most levels of 60 years old, and 68.2% of them were women. The rate of the person who needed the close examination was 5.3-7.8% except the first year, and the rate of the person who actually underwent the close examination was as high as 94.7%. The total number of the discovered gastric cancer was 49 and the rate of discovery of gastric cancer was 0.2%. Twenty-three of them were early cancers pathologically. Besides then, we discovered two gastric malignant lymphomas and two esophageal cancers. Invasion depths of discovered cancers were intramucosal layer in 30%, submucosal layer in 8%, proper muscular layer in 10%, and subserosal or serosal layer in 52% respectively. In the whole gastric cancers 17.5% were located in the posterior wall and as high as 40% in the lesser curvature. In addition, early cancers occupied as high as 71.4% in C area and 85.7% in the posterior wall. Conclusion: The total number of enrolled persons who consulted mass screening system for gastric cancer increased by the start of an individual screening system. The fact that the rate of the person who actually underwent the close examination was as high as 94.7% was noteworthy.
一般社団法人日本消化器がん検診学会の論文

The results of individual screening system for gastric cancer in Toyohashi city

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