CT Quantification of Large Opacities and Emphysema in Silicosis: Correlations among Clinical, Functional, and Radiological Parameters

Castro, Marcos César Santos de; Ferreira, Ana Paula; Irion, Klaus; Hochhegger, Bruno; Lopes, Agnaldo José; Velarde, Guilhermo C.; Zanetti, Gláucia; Marchiori, Edson

doi:10.1007/s00408-014-9590-9

Cited by 10 publications

(10 citation statements)

References 39 publications

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“…Studies showed that the operators of sand blasters and stone cutting systems can be subjected to fine silica particulates which can lead to silicosis and lung cancer, both deadly lung diseases [20,21]. If the fracture behavior of particles during impact loading and materials processing was better understood, predictions of the dust generated during these processes might be used to limit worker exposure to harmful particulate matter.…”

Section: Introductionmentioning

confidence: 99%

New pulverization parameter derived from indentation and dynamic compression of brittle microspheres

et al. 2015

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Particulates may experience dynamic compression loading during materials handling and processing, which in turn can lead to fracture of the particles. In this study, the dynamic fracture behavior of microspherical particles of soda lime glass (SLG), polycrystalline silica, polycrystalline silicon, barium titanate glass (BTG) and yttrium-stabilized zirconia (YSZ) was characterized with high speed, in situ X-ray phase-contrast imaging to examine the failure mechanisms in situ for spheroidal particles with diameters (d) from 600 to 2000 µm under dynamic compression. Nanoindentation was used to measure the hardness (H) and elastic modulus (E), and microindentation was used to measure the fracture toughness (T) of the materials. Based on the experimental results, a new pulverization parameter was proposed to predict the failure mechanism of the materials given by: Ƥ=Hd/TE 5/3. The results showed that high Ƥ values are associated with comminution failure, low Ƥ values are associated with single cracking failure, and intermediate Ƥ values reflect failure modes in between these two extremes.

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Section: Introductionmentioning

confidence: 99%

New pulverization parameter derived from indentation and dynamic compression of brittle microspheres

et al. 2015

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“…Traction on adjacent parenchyma may lead to associated paracicatricial emphysema. The emphysematous changes may be more important in lung function decline than the size of the PMF lesion . Importantly, however, symptomatology is not necessarily clearly related to radiological findings, especially in young workers.…”

Section: Patterns Of Diseasementioning

confidence: 98%

Silicosis in artificial stone workers: Spectrum of radiological high‐resolution CT chest findings

Jones¹,

Pasricha²,

Heinze

et al. 2020

J Med Imag Rad Onc

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Summary Silicosis in artificial stone workers has become increasingly recognised in Australia over the last two years, with a large proportion of screened workers showing imaging features of the disease. The spectrum of findings has differed from the classical silicosis previously described, with many features of accelerated disease, including ground‐glass opacities and progressive massive fibrosis. This cohort of patients presents after exposure to a unique product high in silica and other binding agents, and the patterns of disease on imaging in this cohort are not previously described. This article reviews the radiological features seen in different forms of silicosis seen to date in this Australian cohort.

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“…Such a technical feature has opened new avenues for the investigation of lung diseases. Objective measurements of the total pulmonary volume and of the volume of the lung affected by emphysema can be performed with high accuracy (27-36) .…”

Section: Commentsmentioning

confidence: 99%

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et al. 2014

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CT Quantification of Large Opacities and Emphysema in Silicosis: Correlations among Clinical, Functional, and Radiological Parameters

Cited by 10 publications

References 39 publications

New pulverization parameter derived from indentation and dynamic compression of brittle microspheres

New pulverization parameter derived from indentation and dynamic compression of brittle microspheres

Silicosis in artificial stone workers: Spectrum of radiological high‐resolution CT chest findings

Qual o seu diagnóstico?

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