Silicosis diagnostic criteria: Difference between revisions
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1.Occupational history of crystalline silica exposure | |||
2. Characteristic radiologic findings as follows: simple chest X-ray with profusions ≥1/1 (see ILO classification) | |||
3. Other possible diseases ruled out. | |||
An occupational history must be obtained to estimate accumulated exposure to silica dust. Occasionally job changes can make it difficult to obtain an accurate occupational history, but at least the following should be included18 | |||
- Prior and current working activity, recording time of exposure to crystalline silica. | |||
- Detailed description of job. - Technical protective measures (use of waterjet cutter, ventilation, dust extraction) and individual precautions (masks). | |||
- Measurement of respirable dust, in order to determine accumulated exposure risk (when this information is available). | |||
The International Labor Office (ILO) has established a classification coding radiological changes in a reproducible format.<ref name="pmid24507420">{{cite journal| author=Halldin CN, Petsonk EL, Laney AS| title=Validation of the international labour office digitized standard images for recognition and classification of radiographs of pneumoconiosis. | journal=Acad Radiol | year= 2014 | volume= 21 | issue= 3 | pages= 305-11 | pmid=24507420 | doi=10.1016/j.acra.2013.11.019 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=24507420 }} </ref> | The International Labor Office (ILO) has established a classification coding radiological changes in a reproducible format.<ref name="pmid24507420">{{cite journal| author=Halldin CN, Petsonk EL, Laney AS| title=Validation of the international labour office digitized standard images for recognition and classification of radiographs of pneumoconiosis. | journal=Acad Radiol | year= 2014 | volume= 21 | issue= 3 | pages= 305-11 | pmid=24507420 | doi=10.1016/j.acra.2013.11.019 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=24507420 }} </ref> | ||
Revision as of 19:54, 15 June 2015
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1.Occupational history of crystalline silica exposure 2. Characteristic radiologic findings as follows: simple chest X-ray with profusions ≥1/1 (see ILO classification) 3. Other possible diseases ruled out.
An occupational history must be obtained to estimate accumulated exposure to silica dust. Occasionally job changes can make it difficult to obtain an accurate occupational history, but at least the following should be included18
- Prior and current working activity, recording time of exposure to crystalline silica. - Detailed description of job. - Technical protective measures (use of waterjet cutter, ventilation, dust extraction) and individual precautions (masks). - Measurement of respirable dust, in order to determine accumulated exposure risk (when this information is available).
The International Labor Office (ILO) has established a classification coding radiological changes in a reproducible format.[1]
ILO Classification (see online version for full description) The classification contains five sections:
1 Technical quality of radiographs: 1: good, 2: acceptable, 3: poor, and 4: unacceptable. 2 Parenchymal alterations: size, profusion, shape and site (Figs. 2 and 3) • Small opacities: Small opacities are described according to profusion, affected zones of the lung, shape and size. • Large opacities: A large opacity is defined as an opacity having the longest dimension exceeding 10 mm. There are 3 categories: A, B, and C. 3 Pleural abnormalities. 4 Symbols, for recording additional coded findings. 5 Comments, not included above.
References
- ↑ Halldin CN, Petsonk EL, Laney AS (2014). "Validation of the international labour office digitized standard images for recognition and classification of radiographs of pneumoconiosis". Acad Radiol. 21 (3): 305–11. doi:10.1016/j.acra.2013.11.019. PMID 24507420.