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Purpose : Breast cancer screening with mammography has been adopted by the Sendai City Medical Association since 2001. Only doctors qualified at Level C or above in the Mammography Reading Examination are allowed to conduct breast cancer mass screening. During the first one-year period, the recall rate was unexpectedly high and the number of breast cancers detected by the double check system was also high. The quality of mass screening during the three-year period after introduction of the new trial was retrospectively examined.<BR>Subjects and Methods : During the study period, a total 47, 826 women and 96 doctors participated in the screening (in the year 2003). Two attempts to improve screening quality were made before the start of the 3rd year screening : (1) an individual doctor was informed of the quality result at his or her screening examination during the first one-year period, and (2) all doctors were requested to attend a training course in which mammograms of all patients with detected breast cancers were shown for reading study, and the advantage of combined mammography with physical examination at breast cancer screening was confirmed.<BR>Results : Primary-care physicians who performed the initial screening examination gave recall rates of 7.7%, 7.3%, and 5.6% in the 1st, 2nd, and 3rd years, respectively. Thus the recall rate in the 3rd year was significantly lower than in the two preceding years. The rate of cancer detection by a double-heck reading in each the three years was 29%, 29%, and 20%, respectively. This showed an increase in the rate of cancer detection at the primary examination carried out by primary-care physicians.<BR>Comments : These results imply that there is an advantage in combining mammography with physical examination for breast cancer screening, and that a trial feedback system can successfully control the quality of mass screening.
- 日本乳癌検診学会の論文
日本乳癌検診学会 | 論文
- Characteristics of Patients with Interval Breast Carcinomas.
- Evaluation of Mass Screening for Breast Cancer Conducted under the Health and Medical Service Law for the Elderly and the Actual Conditions of Health Insurance Administration in Zentsuji City.
- Two Cases of Mucinous Carcinoma of the Breast Manifested as Interval Cancer.
- Breast-Conserving Therapy for Breast Cancer Patients Showing Mammographic Evidence of Calcification.
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