Browsing by Author "Khuong van Duy"

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    The 60-film set with 8-index for examining physicians' proficiency in reading pneumoconiosis chest X-rays
    (2012-04-19) Huashi Zhou; Yukinori Kusaka; Taro Tamura; Narufumi Suganuma; Ponglada Subhannachart; Somkiat Siriruttanapruk; Narongpon Dumavibhat; Xing Zhang; P. K. Sishodiya; Khuong van Duy; Kurt G. Hering; John E. Parker; Eduardo Algranti; Igor Fedotov; Hisao Shida; Masanori Akira; University of Fukui; Kochi University; Chest Disease Institute; Thailand Ministry of Public Health; Mahidol University; Zhejiang Academy of Medical Sciences; National Institute of Miners' Health; Ha Noi Medical University School of Public; Miner's Hospital; West Virginia University Robert C. Byrd Health Sciences Center; Divisao de Medicina; International Labour Organization; Committee of Compensation of Asbestos Related; National Hospital Organization Kinki-Chuo Chest Medical Center
    The 60-film set was developed by experts (Expert Group) for examining 8 indices: sensitivity (X 1 ) and specificity (X 2 ) for pneumoconiosis, sensitivity(X 3 ) and specificity for (X 4 ) large opacities, sensitivity (X 5 ) and specificity (X 6 ) for pleural plaque, profusion increment consistency for small opacities (X 7 ), and shape differentiation for small opacities (X 8 ) of physicians' reading skills on pneumoconiosis X-ray according to ILO 2000 Classification. The aim of this study was to assess the appropriateness of the exam film set for evaluating physicians' reading skills. 29 physicians (Al-Group) and 24 physicians (A2-Group) attended the 1st and 2nd Asian Intensive Reader of Pneumoconioses (AIR Pneumo) training course, respectively, and 22 physicians (B-Group) attended Brazilian training course. After training, they took examination of reading 60-film exam set. The examinees' reading results in terms of 8 indices were compared between the examinee groups and the Expert Group by parametric unpaired /-test. The Examinee Group consisting of Al-Group, A2-Group and B-Group was inferior to the Expert Group in all indices. There was no significant difference for X 7 of Al-Group, X 7 and X 8 of A2-Group (p > 0.05) compared with the Expert Group. There was a significant difference in X 8 at /K0.05 between Al-Group and A2-Group, in X 3 at / > < 0.05 between Al-Group and B-Group, in both Xj and in X 3 at/ > 0.05 between A2-Group and B-Group. Accordingly, the 60-film set providing 8 indices designed might be a good method for evaluation of the physicians' reading proficiency at different training settings. © 2012 National Institute of Occupational Safety and Health.
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    Proficiency in reading pneumoconiosis radiographs examined by the 60-film set with 4-factor structuring 8-index
    (2012-04-19) Huashi Zhou; Yukinori Kusaka; Taro Tamura; Narufumi Suganuma; Ponglada Subhannachart; Somkiat Siriruttanapruk; Narongpon Dumavibhat; Xing Zhang; P. K. Sishodiya; Khuong van Duy; Kurt G. Hering; John E. Parker; Eduardo Algranti; Igor Fedotov; Hisao Shida; Masanori Akira; University of Fukui; Kochi University; Chest Disease Institute; Thailand Ministry of Public Health; Mahidol University; Zhejiang Academy of Medical Sciences; National Institute of Miners' Health; Ha Noi Medical University; Miner's Hospital; West Virginia University Robert C. Byrd Health Sciences Center; Divisao de Medicina; International Labour Organization; Committee of Compensation of Asbestos Related; National Hospital Organization, Japan
    29 physicians (A1-Group) and 24 physicians (A 2-Group) attending the 1st and 2nd "A sian Intensive Reader of Pneumoconiosis" (AIR Pneumo) training course, respectively, and 22 physicians (B-Group) attending the Brazilian training course took the examination of reading the 60-film set. The objective of the study was firstly to investigate the factor structure of physicians' proficiency of reading pneumoconiosis chest X-ray, and secondly to examine differences in factor scores between groups. Reading results in terms of the 8-index of all examinees (Examinee Group) were subjected to the exploratory factor analysis. A 4-factor was analyzed to structure the 8-index: the specificity for pneumoconiosis, specificity for large opacities, specificity for pleural plaque and shape differentiation for small opacities loaded on the Factor 1; the sensitivity for pneumoconiosis and sensitivity for large opacities loaded on the Factor 2; the sensitivity for pleural plaque loaded on the Factor 3; the profusion increment consistency loaded on the Factor 4. 4-Factor scores were compared between each other of the three groups. The Factor 2 scores in A1 and A2 groups were significantly higher than in B-Group. Four factors could reflect four aspects of reading proficiency of pneumoconiosis X-ray, and it was suggested that 4-factor scores could also assess the attained skills appropriately. © 2012 National Institute of Occupational Safety and Health.