| The "dirty chest"--correlations between chest X-ray, multi-slice CT and tobacco burden. | |
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MedLine Citation:
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PMID: 21937617 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Objectives: Cigarette smoking induced airway disease commonly results in an overall increase of non-specific lung markings on chest radiography. This has been described as "dirty chest". Since the morphological substrate of this condition is similar to the anthracosilicosis of coal workers we hypothesised that it is possible to quantify the radiological changes using the International Labour Organisation (ILO) classification of pneumoconiosis. The aim of this study was to evaluate whether there is a correlation between the extent of cigarette smoking and increased lung markings in chest radiography and to correlate the chest radiographic scores with findings on CT studies. Methods: In a prospective analysis a cohort of 85 smokers was examined. The cigarette consumption was evaluated in pack years (defined as 20 cigarettes per day during 1 year). Film reading was performed by two board-certified radiologists. Chest radiographs were evaluated for the presence of thickening of bronchial walls, presence of linear or nodular opacities and emphysema. To correlate the smoking habits with the increase of overall lung markings in chest radiography, the ILO profusion score was converted to numerical numbers from zero to nine. Chest radiographs were rated according to the complete set of standard films of the revised ILO classification. Results: 63/85 (74%) of the smokers showed an increase in overall lung markings on chest radiography; 32 (37%) had a profusion score of ILO< 1/1, 29 (34%) had a profusion score of ILO <2/2 and 2 (2%) had a score of ILO≥2/2. There was a significant positive linear correlation between the increase of overall lung markings on chest radiography and the cigarette consumption quantified as pack years (R = 0.68). The majority of the heavy smokers (>40 pack years) showed emphysema; there was no significant difference between the prevalence of emphysema as diagnosed by CT (62%) or chest X-ray (71%) (p < 0.05).The most common findings in CT were thickening of bronchial walls (64%), the presence of emphysema (62%) and of intralobular opacities (61%). Ground-glass opacities were seen in only 7% of our patients. Conclusion: Bronchial wall thickening and intralobular opacities as seen in CT showed a positive linear correlation with the increase of overall lung markings in chest X-ray. |
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Authors:
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J Kirchner; J P Goltz; F Lorenz; A Obermann; E M Kirchner; R Kickuth |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-9-21 |
Journal Detail:
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Title: The British journal of radiology Volume: - ISSN: 1748-880X ISO Abbreviation: - Publication Date: 2011 Sep |
Date Detail:
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Created Date: 2011-9-22 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0373125 Medline TA: Br J Radiol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Diagnostic and Interventional Radiology, Allgemeines Krankenhaus, Hagen, Germany. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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