Factors Involved in the Selection of Medical Institutions Conducting Individual Lung Cancer Screening

概要

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Objective. To design a more effective lung cancer detection system by studying the problems associated with selecting medical facilities that provide individual lung cancer screening. Methods. A survey was conducted at 154 institutions registered in Suita City as tuberculosis medical screening facilities, on whether they had implemented individual lung cancer screening that was started in 2008. We used questionnaires for checking medical instrument performance, radiographic conditions, materials used and so on. A final decision was then made by evaluating plain chest X-ray films at each medical institution. Results. We judged 120 medical institutions as compliant and accredited them. The remaining 34 medical facilities did not comply with conditions established by the Japan Lung Cancer Society, therefore they were refused accreditation. However, the radiographic image quality at accredited medical institutions was not sufficient. Conclusion. Continued instruction is required at medical institutions to take radiographic images that are suitable for diagnostic purposes. Furthermore, we believed that it is very important to design a prognosis evaluation system for efficient interpretations of radiograms to diminish the number of false-negative results.