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Otte N, Fraune E, Cetiner Y, Felten MK, Dirrichs T, Krabbe J, Kraus T. Asbestos Surveillance Program Aachen (ASPA): Cancer mortality among asbestos exposed power industry workers. Lung Cancer 2024; 195:107899. [PMID: 39111017 DOI: 10.1016/j.lungcan.2024.107899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 07/20/2024] [Accepted: 07/23/2024] [Indexed: 09/08/2024]
Abstract
BACKGROUND The time between initial asbestos exposure and asbestos-related disease can span several decades. The Asbestos Surveillance Program aims to detect early asbestos-related diseases in a cohort of 8,565 power industry workers formerly exposed to asbestos. RESEARCH QUESTION How does asbestos exposure patterns affect cancer mortality and the duration of latency until death? METHODS A mortality follow-up was conducted with available vital status for 8,476 participants (99 %) and available death certificates for 89.9 % of deceased participants. Standardised mortality ratios (SMR) were calculated for asbestos-related cancers. The SMR of mesothelioma and lung cancer were stratified by exposure duration, cumulative asbestos exposure and smoking. The effect of age at first exposure, cumulative asbestos exposure and smoking on the duration of latency until death was examined using multiple linear regression analysis. RESULTS The mortality risk of mesothelioma (n = 104) increased with cumulative asbestos exposure but not with exposure duration; the highest mortality (SMR: 23.20; 95 % CI: 17.62-29.99) was observed in participants who performed activities with short extremely high exposures (steam turbine revisions). Lung cancer mortality (n = 215) was not increased (SMR: 1.03; 95 % CI: 0.89-1.17). Median latency until death was 46 (15-63) years for mesothelioma and 44 (15-70) years for lung cancer and deaths occurred between age 64 and 82 years. Latency until death was not influenced by age at first exposure, cumulative exposure, or smoking. CONCLUSION Cumulative dose seems to be more appropriate than exposure duration for estimating the risk of mesothelioma death. Additionally, exposure with high cumulative doses in short time should be considered. Since only lung cancer mortality, not incidence, was recorded in this study, lung cancer risk associated with asbestos exposure could not be assessed and the lung cancer mortality was lower than expected probably due to screening effects and improved treatments. The critical time window of death from asbestos-related cancer is between the seventh and ninth decade of life. Future studies should further explore the concept of latency, especially since large ranges are reported throughout the literature.
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Affiliation(s)
- Nelly Otte
- Institute of Occupational, Social and Environmental Medicine, Medical Faculty, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany.
| | - Ellen Fraune
- Institute of Occupational, Social and Environmental Medicine, Medical Faculty, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany
| | - Yildiz Cetiner
- Institute of Occupational, Social and Environmental Medicine, Medical Faculty, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany
| | - Michael K Felten
- Institute of Occupational, Social and Environmental Medicine, Medical Faculty, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany
| | - Timm Dirrichs
- Department of Diagnostic and Interventional Radiology, Medical Faculty, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany
| | - Julia Krabbe
- Institute of Occupational, Social and Environmental Medicine, Medical Faculty, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany
| | - Thomas Kraus
- Institute of Occupational, Social and Environmental Medicine, Medical Faculty, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany
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Markowitz S, Ringen K, Dement JM, Straif K, Christine Oliver L, Algranti E, Nowak D, Ehrlich R, McDiarmid MA, Miller A. Occupational lung cancer screening: A Collegium Ramazzini statement. Am J Ind Med 2024; 67:289-303. [PMID: 38440821 DOI: 10.1002/ajim.23572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 02/01/2024] [Indexed: 03/06/2024]
Affiliation(s)
- Steven Markowitz
- Barry Commoner Center for Health & the Environment, Queens College, City University of New York, New York, New York State, USA
| | - Knut Ringen
- CPWR-The Center for Construction Research and Training, Silver Spring, Maryland, USA
| | - John M Dement
- Duke University School of Medicine, Division of Occupational & Environmental Medicine, Durham, North Carolina, USA
| | - Kurt Straif
- ISGlobal, Barcelona, Spain
- Boston College, Chestnut Hill, Massachusetts, USA
| | - L Christine Oliver
- Dalla Lana School of Public Health, Division of Occupational and Environmental Health, University of Toronto, Toronto, Ontario, Canada
| | | | - Dennis Nowak
- Institute and Clinic for Occupational, Social and Environmental Medicine, LMU Klinikum, LMU Munich, CPC Munich, Comprehensive Pneumology Center Munich, #DZL, Deutsches Zentrum für Lungenforschung, Munich, Germany
| | - Rodney Ehrlich
- Division of occupational Medicine, School of Public Health, University of Cape Town, Cape Town, South Africa
| | - Melissa A McDiarmid
- Division of Occupational & Environmental Medicine, University of Maryland School of Medicine, USA
| | - Albert Miller
- Barry Commoner Center for Health & the Environment, Queens College, City University of New York, New York, New York State, USA
- Department of Medicine, Mount Sinai School of Medicine, New York, New York State, USA
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3
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Henschke C, Huber R, Jiang L, Yang D, Cavic M, Schmidt H, Kazerooni E, Zulueta JJ, Sales Dos Santos R, Ventura L. Perspective on Management of Low-Dose Computed Tomography Findings on Low-Dose Computed Tomography Examinations for Lung Cancer Screening. From the International Association for the Study of Lung Cancer Early Detection and Screening Committee. J Thorac Oncol 2024; 19:565-580. [PMID: 37979778 DOI: 10.1016/j.jtho.2023.11.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 10/24/2023] [Accepted: 11/13/2023] [Indexed: 11/20/2023]
Abstract
Lung cancer screening using low-dose computed tomography (LDCT) carefully implemented has been found to reduce deaths from lung cancer. Optimal management starts with selection of eligibility criteria, counseling of screenees, smoking cessation, selection of the regimen of screening which specifies the imaging protocol, and workup of LDCT findings. Coordination of clinical, radiologic, and interventional teams and ultimately treatment of diagnosed lung cancers under screening determine the benefit of LDCT screening. Ethical considerations of who should be eligible for LDCT screening programs are important to provide the benefit to as many people at risk of lung cancer as possible. Unanticipated diseases identified on LDCT may offer important benefits through early detection of leading global causes of death, such as cardiovascular diseases and chronic obstructive pulmonary disease, as the latter may result from conditions such as emphysema and bronchiectasis, which can be identified early on LDCT. This report identifies the key components of the regimen of LDCT screening for lung cancer which include the need for a management system to provide data for continuous updating of the regimen and provides quality assurance assessment of actual screenings. Multidisciplinary clinical management is needed to maximize the benefit of early detection, diagnosis, and treatment of lung cancer. Different regimens have been evolving throughout the world as the resources and needs may be different, for countries with limited resources. Sharing of results, further knowledge, and incorporation of technologic advances will continue to accelerate worldwide improvements in the diagnostic and treatment approaches.
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Affiliation(s)
- Claudia Henschke
- Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, New York.
| | - Rudolf Huber
- Division of Respiratory Medicine and Thoracic Oncology, Department of Medicine, University of Munich - Campus Innenstadt, Ziemssenstrabe, Munich, Germany
| | - Long Jiang
- Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Dawei Yang
- Department of Pulmonary Medicine and Critical Care, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Milena Cavic
- Department of Experimental Oncology, Institute of Oncology and Radiology of Serbia, Belgrade, Serbia
| | - Heidi Schmidt
- Department of Medical Imaging, Toronto General Hospital, Toronto, Canada
| | - Ella Kazerooni
- Division of Cardiothoracic Radiology and Internal Medicine, University of Michigan Medical School, Frankel Cardiovascular Center, Ann Arbor, Michigan
| | - Javier J Zulueta
- Department of Medicine, Mount Sinai Morningside, New York, New York
| | - Ricardo Sales Dos Santos
- Department of Minimally Invasive Thoracic and Robotic Surgery, Albert Einstein Israeli Hospital, Sao Paulo, Brazil
| | - Luigi Ventura
- Department of Medicine and Surgery, University Hospital of Parma, Parma, Italy
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4
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van Zandwijk N, Marshall HM, Fong KM. Lung cancer: Removing toxic dust from our environment. Respirology 2023; 28:511-512. [PMID: 37105901 DOI: 10.1111/resp.14512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 04/19/2023] [Indexed: 04/29/2023]
Affiliation(s)
- Nico van Zandwijk
- Department of Cell and Molecular Therapies, Royal Prince Alfred Hospital/Sydney Local Health District, Camperdown, New South Wales, Australia
- Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - Henry M Marshall
- The Prince Charles Hospital and Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Kwun M Fong
- The Prince Charles Hospital and Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
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5
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Lung Cancer Screening in Asbestos-Exposed Populations. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19052688. [PMID: 35270380 PMCID: PMC8910511 DOI: 10.3390/ijerph19052688] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 12/19/2022]
Abstract
Asbestos exposure is the most important cause of occupational lung cancer mortality. Two large randomized clinical trials in the U.S. and Europe conclusively demonstrate that annual low-dose chest CT (LDCT) scan screening reduces lung cancer mortality. Age and smoking are the chief risk factors tested in LDCT studies, but numerous risk prediction models that incorporate additional lung cancer risk factors have shown excellent performance. The studies of LDCT in asbestos-exposed populations shows favorable results but are variable in design and limited in size and generalizability. Outstanding questions include how to: (1) identify workers appropriate for screening, (2) organize screening programs, (3) inform and motivate people to screen, and (4) incorporate asbestos exposure into LDCT decision-making in clinical practice. Conclusion: Screening workers aged ≥50 years with a history of ≥5 years asbestos exposure (or fewer years given intense exposure) in combination with either (a) a history of smoking at least 10 pack-years with no limit on time since quitting, or (b) a history of asbestos-related fibrosis, chronic lung disease, family history of lung cancer, personal history of cancer, or exposure to multiple workplace lung carcinogens is a reasonable approach to LDCT eligibility, given current knowledge. The promotion of LDCT-based screening among asbestos-exposed workers is an urgent priority.
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Abstract
Selected occupational populations are at the highest risk of lung cancer, because they smoke at increased rates and are concurrently exposed to workplace lung carcinogens. Low-dose computed tomography (CT)-based lung cancer screening has an enormous potential to reduce lung cancer mortality in these populations, as shown both in the lung cancer screening studies in the general population and in studies of workers at high risk of lung cancer. Pulmonologists can play a key role in identifying workers at high risk of lung cancer and ensuring that they are offered annual low-dose CT scans for early lung cancer detection.
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Affiliation(s)
- Steven B Markowitz
- Barry Commoner Center for Health and the Environment, Queens College, City University of New York, 65-30 Kissena Boulevard, Remsen Hall, Queens, NY 11367, USA.
| | - Brittany Dickens
- Barry Commoner Center for Health and the Environment, Queens College, City University of New York, 65-30 Kissena Boulevard, Remsen Hall, Queens, NY 11367, USA
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7
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Veronesi G, Baldwin DR, Henschke CI, Ghislandi S, Iavicoli S, Oudkerk M, De Koning HJ, Shemesh J, Field JK, Zulueta JJ, Horgan D, Fiestas Navarrete L, Infante MV, Novellis P, Murray RL, Peled N, Rampinelli C, Rocco G, Rzyman W, Scagliotti GV, Tammemagi MC, Bertolaccini L, Triphuridet N, Yip R, Rossi A, Senan S, Ferrante G, Brain K, van der Aalst C, Bonomo L, Consonni D, Van Meerbeeck JP, Maisonneuve P, Novello S, Devaraj A, Saghir Z, Pelosi G. Recommendations for Implementing Lung Cancer Screening with Low-Dose Computed Tomography in Europe. Cancers (Basel) 2020; 12:E1672. [PMID: 32599792 PMCID: PMC7352874 DOI: 10.3390/cancers12061672] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/15/2020] [Accepted: 06/17/2020] [Indexed: 12/11/2022] Open
Abstract
Lung cancer screening (LCS) with low-dose computed tomography (LDCT) was demonstrated in the National Lung Screening Trial (NLST) to reduce mortality from the disease. European mortality data has recently become available from the Nelson randomised controlled trial, which confirmed lung cancer mortality reductions by 26% in men and 39-61% in women. Recent studies in Europe and the USA also showed positive results in screening workers exposed to asbestos. All European experts attending the "Initiative for European Lung Screening (IELS)"-a large international group of physicians and other experts concerned with lung cancer-agreed that LDCT-LCS should be implemented in Europe. However, the economic impact of LDCT-LCS and guidelines for its effective and safe implementation still need to be formulated. To this purpose, the IELS was asked to prepare recommendations to implement LCS and examine outstanding issues. A subgroup carried out a comprehensive literature review on LDCT-LCS and presented findings at a meeting held in Milan in November 2018. The present recommendations reflect that consensus was reached.
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Affiliation(s)
- Giulia Veronesi
- Faculty of Medicine and Surgery—Vita-Salute San Raffaele University, 20132 Milan, Italy;
- Division of Thoracic Surgery, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy;
| | - David R. Baldwin
- Department of Respiratory Medicine, David Evans Research Centre, Nottingham University Hospitals NHS Trust, Nottingham NG5 1PB, UK;
| | - Claudia I. Henschke
- Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (C.I.H.); (N.T.); (R.Y.)
| | - Simone Ghislandi
- Department of Social and Political Sciences, Bocconi University, 20136 Milan, Italy; (S.G.); (L.F.N.)
| | - Sergio Iavicoli
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers’ Compensation Authority (INAIL), 00078 Rome, Italy;
| | - Matthijs Oudkerk
- Center for Medical Imaging, University Medical Center Groningen, University of Groningen, 9712 CP Groningen, The Netherlands;
| | - Harry J. De Koning
- Department of Public Health, Erasmus MC—University Medical Centre Rotterdam, 3015 GD Rotterdam, The Netherlands; (H.J.D.K.); (C.v.d.A.)
| | - Joseph Shemesh
- The Grace Ballas Cardiac Research Unit, Sheba Medical Center, Affiliated with the Sackler Faculty of Medicine, Tel-Aviv University, 52621 Tel Aviv-Yafo, Israel;
| | - John K. Field
- Roy Castle Lung Cancer Research Programme, Department of Molecular and Clinical Cancer Medicine, The University of Liverpool, Liverpool L69 3BX, UK;
| | - Javier J. Zulueta
- Department of Pulmonology, Clinica Universidad de Navarra, 31008 Pamplona, Spain;
- Visiongate Inc., Phoenix, AZ 85044, USA
| | - Denis Horgan
- European Alliance for Personalised Medicine (EAPM), Avenue de l’Armée Legerlaan 10, 1040 Brussels, Belgium;
| | - Lucia Fiestas Navarrete
- Department of Social and Political Sciences, Bocconi University, 20136 Milan, Italy; (S.G.); (L.F.N.)
| | | | - Pierluigi Novellis
- Division of Thoracic Surgery, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy;
| | - Rachael L. Murray
- Division of Epidemiology and Public Health, UK Centre for Tobacco and Alcohol Studies, Clinical Sciences Building, City Hospital, University of Nottingham, Nottingham NG5 1PB, UK;
| | - Nir Peled
- The Legacy Heritage Oncology Center & Dr. Larry Norton Institute, Soroka Medical Center & Ben-Gurion University, 84101 Beer-Sheva, Israel;
| | - Cristiano Rampinelli
- Department of Medical Imaging and Radiation Sciences, IEO European Institute of Oncology IRCCS, 20141 Milan, Italy;
| | - Gaetano Rocco
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA;
| | - Witold Rzyman
- Department of Thoracic Surgery, Medical University of Gdańsk, 80-210 Gdańsk, Poland;
| | | | - Martin C. Tammemagi
- Department of Health Sciences, Brock University, 1812 Sir Isaac Brock Way, St Catharines, ON L2S 3A1, Canada;
| | - Luca Bertolaccini
- Division of Thoracic Surgery, IEO European Institute of Oncology IRCCS, 20141 Milan, Italy;
| | - Natthaya Triphuridet
- Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (C.I.H.); (N.T.); (R.Y.)
- Faculty of Medicine and Public Health, Chulabhorn Royal Academy, HRH Princess Chulabhorn College of Medical Science, Bangkok 10210, Thailand
| | - Rowena Yip
- Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (C.I.H.); (N.T.); (R.Y.)
| | - Alexia Rossi
- Department of Biomedical Sciences, Humanitas University, 20090 Pieve Emanuele (MI), Italy;
| | - Suresh Senan
- Department of Radiation Oncology, Amsterdam University Medical Centers, VU location, De Boelelaan 1117, Postbox 7057, 1007 MB Amsterdam, The Netherlands;
| | - Giuseppe Ferrante
- Department of Cardiovascular Medicine, Humanitas Clinical and Research Center IRCCS, 20089 Rozzano (MI), Italy;
| | - Kate Brain
- Division of Population Medicine, School of Medicine, Cardiff University, Cardiff CF14 4YS, UK;
| | - Carlijn van der Aalst
- Department of Public Health, Erasmus MC—University Medical Centre Rotterdam, 3015 GD Rotterdam, The Netherlands; (H.J.D.K.); (C.v.d.A.)
| | - Lorenzo Bonomo
- Department of Bioimaging and Radiological Sciences, Catholic University, 00168 Rome, Italy;
| | - Dario Consonni
- Epidemiology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy;
| | - Jan P. Van Meerbeeck
- Thoracic Oncology, Antwerp University Hospital and Ghent University, 2650 Edegem, Belgium;
| | - Patrick Maisonneuve
- Division of Epidemiology and Biostatistics, IEO European Institute of Oncology IRCCS, 20141 Milan, Italy;
| | - Silvia Novello
- Department of Oncology, University of Torino, 10124 Torino, Italy; (G.V.S.); (S.N.)
| | - Anand Devaraj
- Department of Radiology, Royal Brompton Hospital, London SW3 6NP, UK;
| | - Zaigham Saghir
- Department of Respiratory Medicine, Herlev-Gentofte University Hospital, 2900 Hellerup, Denmark;
| | - Giuseppe Pelosi
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy
- Inter-Hospital Pathology Division, IRCCS MultiMedica, 20138 Milan, Italy
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Recommendations for Implementing Lung Cancer Screening with Low-Dose Computed Tomography in Europe. Cancers (Basel) 2020; 12:0. [PMID: 32599792 PMCID: PMC7352874 DOI: 10.3390/cancers12060000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Lung cancer screening (LCS) with low-dose computed tomography (LDCT) was demonstrated in the National Lung Screening Trial (NLST) to reduce mortality from the disease. European mortality data has recently become available from the Nelson randomised controlled trial, which confirmed lung cancer mortality reductions by 26% in men and 39-61% in women. Recent studies in Europe and the USA also showed positive results in screening workers exposed to asbestos. All European experts attending the "Initiative for European Lung Screening (IELS)"-a large international group of physicians and other experts concerned with lung cancer-agreed that LDCT-LCS should be implemented in Europe. However, the economic impact of LDCT-LCS and guidelines for its effective and safe implementation still need to be formulated. To this purpose, the IELS was asked to prepare recommendations to implement LCS and examine outstanding issues. A subgroup carried out a comprehensive literature review on LDCT-LCS and presented findings at a meeting held in Milan in November 2018. The present recommendations reflect that consensus was reached.
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9
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Cox CW, Chung JH, Ackman JB, Berry MF, Carter BW, de Groot PM, Hobbs SB, Johnson GB, Maldonado F, McComb BL, Tong BC, Walker CM, Kanne JP. ACR Appropriateness Criteria® Occupational Lung Diseases. J Am Coll Radiol 2020; 17:S188-S197. [PMID: 32370962 DOI: 10.1016/j.jacr.2020.01.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 01/22/2020] [Indexed: 11/28/2022]
Abstract
Ordering the appropriate diagnostic imaging for occupational lung disease requires a firm understanding of the relationship between occupational exposure and expected lower respiratory track manifestation. Where particular inorganic dust exposures typically lead to nodular and interstitial lung disease, other occupational exposures may lead to isolated small airway obstruction. Certain workplace exposures, like asbestos, increase the risk of malignancy, but also produce pulmonary findings that mimic malignancy. This publication aims to delineate the common and special considerations associated with occupational lung disease to assist the ordering physician in selecting the most appropriate imaging study, while still stressing the importance of a multidisciplinary approach. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision include an extensive analysis of current medical literature from peer reviewed journals and the application of well-established methodologies (RAND/UCLA Appropriateness Method and Grading of Recommendations Assessment, Development, and Evaluation or GRADE) to rate the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where evidence is lacking or equivocal, expert opinion may supplement the available evidence to recommend imaging or treatment.
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Affiliation(s)
| | | | - Jeanne B Ackman
- Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Mark F Berry
- Stanford University Medical Center, Stanford, California; The Society of Thoracic Surgeons
| | - Brett W Carter
- The University of Texas MD Anderson Cancer Center, Houston, Texas
| | | | | | | | - Fabien Maldonado
- Vanderbilt University Medical Center, Nashville, Tennessee; American College of Chest Physicians
| | | | - Betty C Tong
- Duke University School of Medicine, Durham, North Carolina; The Society of Thoracic Surgeons
| | | | - Jeffrey P Kanne
- Specialty Chair, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
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Maisonneuve P, Rampinelli C, Bertolotti R, Misotti A, Lococo F, Casiraghi M, Spaggiari L, Bellomi M, Novellis P, Solinas M, Dieci E, Alloisio M, Fontana L, Persechino B, Iavicoli S, Veronesi G. Low-dose computed tomography screening for lung cancer in people with workplace exposure to asbestos. Lung Cancer 2019; 131:23-30. [PMID: 31027694 DOI: 10.1016/j.lungcan.2019.03.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 02/15/2019] [Accepted: 03/05/2019] [Indexed: 12/24/2022]
Abstract
OBJECTIVES Smoking is the main risk factor for lung cancer, but environmental and occupational exposure to carcinogens also increase lung cancer risk. We assessed whether extending low-dose computed tomography (LDCT) screening to persons with occupational exposure to asbestos may be an effective way reducing lung cancer mortality. MATERIALS AND METHODS We conducted a nested case-control study within the COSMOS screening program, assessing past asbestos exposure with a questionnaire. LDCT scans of asbestos-exposed participants were reviewed to assess the presence of pulmonary, interstitial and pleural alterations in comparison to matched unexposed controls. We also performed an exhaustive review, with meta-analysis, of the literature on LDCT screening in asbestos-exposed persons. RESULTS Exposure to asbestos, initially self-reported by 9.8% of COSMOS participants, was confirmed in 216 of 544 assessable cases, corresponding to 2.6% of the screened population. LDCT of asbestos-exposed persons had significantly more pleural plaques, diaphragmatic pleural thickening and pleural calcifications, but similar frequency of parenchymal and interstitial alterations to unexposed persons. From 16 papers, including this study, overall lung cancer detection rates at baseline were 0.81% (95% CI 0.50-1.19) in asbestos-exposed persons, 0.94% (95% CI 0.47-1.53) in asbestos-exposed smokers (12 studies), and 0.11% (95% CI 0.00-0.43) in asbestos-exposed non-smokers (9 studies). CONCLUSION Persons occupationally exposed to asbestos should be monitored to gather more information about risks. Although LDCT screening is effective in the early detection lung cancer in asbestos-exposed smokers, our data suggest that screening of asbestos-exposed persons with no additional risk factors for cancer does is not viable due to the low detection rate.
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Affiliation(s)
- Patrick Maisonneuve
- Division of Epidemiology and Biostatistics, IEO, European Institute of Oncology IRCCS, Milan, Italy.
| | - Cristiano Rampinelli
- Department of Medical Imaging and Radiation Sciences, IEO, European Institute of Oncology IRCSS, Milan, Italy
| | - Raffaella Bertolotti
- Division of Thoracic Surgery, Data Management, IEO, European Institute of Oncology IRCSS, Milan, Italy
| | - Alessandro Misotti
- Dietetics and Clinical Nutrition, Hospital of Melegnano, ASST Melegnano-Martesana, Milan, Italy
| | - Filippo Lococo
- Department of Thoracic Surgery, Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Monica Casiraghi
- Division of Thoracic Surgery, European Institute of Oncology IRCSS, Milan, Italy
| | - Lorenzo Spaggiari
- Division of Thoracic Surgery, European Institute of Oncology IRCSS, Milan, Italy; Department of Oncology and Hemato-oncology, University of Milan, Milan, Italy
| | - Massimo Bellomi
- Department of Medical Imaging and Radiation Sciences, IEO, European Institute of Oncology IRCSS, Milan, Italy; Department of Oncology and Hemato-oncology, University of Milan, Milan, Italy
| | - Pierluigi Novellis
- Division of Thoracic and General Surgery, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Michela Solinas
- Division of Thoracic and General Surgery, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Elisa Dieci
- Division of Thoracic and General Surgery, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Marco Alloisio
- Division of Thoracic and General Surgery, Humanitas Clinical and Research Center, Rozzano, Milan, Italy; Department of Biomedical Science, Humanitas University, Rozzano, Milan, Italy
| | - Luca Fontana
- Italian National Insurance Institute for Workplace Injuries (INAIL), Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Rome, Italy
| | - Benedetta Persechino
- Italian National Insurance Institute for Workplace Injuries (INAIL), Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Rome, Italy
| | - Sergio Iavicoli
- Italian National Insurance Institute for Workplace Injuries (INAIL), Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Rome, Italy
| | - Giulia Veronesi
- Division of Thoracic and General Surgery, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
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11
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3-Dimensional Quantification of Composite Pleural Plaque Volume in Patients Exposed to Asbestos Using High-resolution Computed Tomography: A Validation Study. J Thorac Imaging 2018; 34:320-325. [PMID: 30489434 DOI: 10.1097/rti.0000000000000377] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
RATIONALE As pleural plaque has been reported as a risk factor in the occurrence of lung cancer and mesothelioma, a reproducible and precise method of measurement of pleural plaque volume (PPV) is needed to further describe these relationships. The aim of the study was to assess the reproducibility of a 3-dimensional computed tomography (3D-CT) volumetric analysis of PPV in patients with occupational exposure to asbestos. MATERIAL AND METHODS A total of 28 patients were retrospectively randomly selected from the multicenter APEXS (Asbestos Post Exposure Survey) study, which was held between 2003 and 2005. All patients underwent a 3D-CT scan. Two readers specialized in chest radiology completed the 3D semiautomated quantification of lung volume using dedicated software. They also had to categorize the visual extent of pleural plaque in terms of thickness and circumference. Reproducibility of the continuous PPV variable was assessed using the intraclass correlation coefficient (ICC) and Bland-Altman analysis. Reproducibility of categorical variables was assessed using the κ test. RESULTS Intraobserver reproducibility of PPV was almost perfect (ICC=0.98 [95% interval: 0.97-0.99]), and interobserver reproducibility was very good (ICC=0.93 [0.88-0.97]). At Bland-Altman analysis, the mean differences were 0.1 (limit of agreement: -11.0 to 11.2) and 3.7 cc (-17.8 to 25.2), respectively. Visual analysis of both plaque in terms of thickness and circumference were fair to moderate, with κ values ranging from 0.30 to 0.60. CONCLUSIONS 3D semiautomatic quantification of PPV is feasible and reproducible using CT in patients with occupational exposure to asbestos. PPV measurement may be useful to correlate with other asbestos-related disease outcomes and prognosis.
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Kato K, Gemba K, Ashizawa K, Arakawa H, Honda S, Noguchi N, Honda S, Fujimoto N, Kishimoto T. Low-dose chest computed tomography screening of subjects exposed to asbestos. Eur J Radiol 2018; 101:124-128. [DOI: 10.1016/j.ejrad.2018.02.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 12/11/2017] [Accepted: 02/12/2018] [Indexed: 10/18/2022]
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Falaschi F, Romei C, Fiorini S, Lucchi M. Imaging of malignant pleural mesothelioma: it is possible a screening or early diagnosis program?-a systematic review about the use of screening programs in a population of asbestos exposed workers. J Thorac Dis 2018; 10:S262-S268. [PMID: 29507794 DOI: 10.21037/jtd.2017.12.57] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Malignant pleural mesothelioma (MPM) in an uncommon neoplasia with high mortality rate, mostly related to professional asbestos exposure. Clinical manifestations are not specific so that diagnosis is performed at advanced stage and screening protocols are not feasible now. On the other hand, asbestos-exposed workers have a high incidence of developing lung cancer. Low-dose computed tomography (LDCT) is a volumetric acquisition technique with high spatial resolution and a low dose exposure; it is used in many trials to detect lung tumours at an early stage in screening protocols, reducing mortality rate in smoker subjects. In recent papers, the possibly role of lung cancer screening was evaluated and recommended also in subjects exposed to asbestos. This article summarizes previous and present clinical trials validated for lung cancer screening, to discuss the possibility of early diagnosis or screening programs in a population of asbestos exposed workers by LDCT.
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Affiliation(s)
- Fabio Falaschi
- Radiology Department, 2nd Radiology Unit, Pisa University Hospital, Pisa, Italy
| | - Chiara Romei
- Radiology Department, 2nd Radiology Unit, Pisa University Hospital, Pisa, Italy
| | - Sara Fiorini
- Division of Diagnostic and Interventional Radiology, Department of Translational Research and New Technologies in Medicine, Medical and Molecular Pathology and Critical Area, University of Pisa, Pisa, Italy
| | - Marco Lucchi
- Division of Thoracic Surgery, Department of Surgical, Medical and Molecular Pathology and Critical Area, University of Pisa, Pisa, Italy
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Schikowsky C, Felten MK, Eisenhawer C, Das M, Kraus T. Lung function not affected by asbestos exposure in workers with normal Computed Tomography scan. Am J Ind Med 2017; 60:422-431. [PMID: 28370144 DOI: 10.1002/ajim.22717] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/28/2017] [Indexed: 11/10/2022]
Abstract
BACKGROUND It has been suggested that asbestos exposure affects lung function, even in the absence of asbestos-related pulmonary interstitial or pleural changes or emphysema. METHODS We analyzed associations between well-known asbestos-related risk factors, such as individual cumulative asbestos exposure, and key lung function parameters in formerly asbestos-exposed power industry workers (N = 207) with normal CT scans. For this, we excluded participants with emphysema, fibrosis, pleural changes, or any combination of these. RESULTS The lung function parameters of FVC, FEV1, DLCO/VA, and airway resistance were significantly associated with the burden of smoking, BMI and years since end of exposure (only DLCO/VA). However, they were not affected by factors directly related to amount (eg, cumulative exposure) or duration of asbestos exposure. CONCLUSIONS Our results confirm the well-known correlation between lung function, smoking habits, and BMI. However, we found no significant association between lung function and asbestos exposure.
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Affiliation(s)
- Christian Schikowsky
- Institute for Occupational and Social Medicine; RWTH Aachen University; Aachen Germany
| | - Michael K. Felten
- Institute for Occupational and Social Medicine; RWTH Aachen University; Aachen Germany
| | - Christian Eisenhawer
- Institute for Occupational and Social Medicine; RWTH Aachen University; Aachen Germany
| | - Marco Das
- Department of Diagnostic Radiology; RWTH Aachen University; Aachen Germany
- Department of Radiology; Maastricht University Medical Center; Maastricht The Netherlands
| | - Thomas Kraus
- Institute for Occupational and Social Medicine; RWTH Aachen University; Aachen Germany
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Silva M, Pastorino U, Sverzellati N. Lung cancer screening with low-dose CT in Europe: strength and weakness of diverse independent screening trials. Clin Radiol 2017; 72:389-400. [PMID: 28168954 DOI: 10.1016/j.crad.2016.12.021] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 11/27/2016] [Accepted: 12/29/2016] [Indexed: 12/17/2022]
Abstract
A North American trial reported a significant reduction of lung cancer mortality and overall mortality as a result of annual screening using low-dose computed tomography (LDCT). European trials prospectively tested a variety of possible screening strategies. The main topics of current discussion regarding the optimal screening strategy are pre-test selection of the high-risk population, interval length of LDCT rounds, definition of positive finding, and post-test apportioning of lung cancer risk based on LDCT findings. Despite the current lack of statistical evidence regarding mortality reduction, the European independent diverse strategies offer a multi-perspective view on screening complexity, with remarkable indications for improvements in cost-effectiveness and harm-benefit balance. The UKLS trial reported the advantage of a comprehensive and simple risk model for selection of patients with 5% risk of lung cancer in 5 years. Subjective risk prediction by biological sampling is under investigation. The MILD trial reported equal efficiency for biennial and annual screening rounds, with a significant reduction in the total number of LDCT examinations. The NELSON trial introduced volumetric quantification of nodules at baseline and volume-doubling time (VDT) for assessment of progression. Post-test risk refinement based on LDCT findings (qualitative or quantitative) is under investigation. Smoking cessation remains the most appropriate strategy for mortality reduction, and it must therefore remain an integral component of any lung cancer screening programme.
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Affiliation(s)
- M Silva
- Section of Radiology, Department of Surgical Sciences, University Hospital of Parma, Parma, Italy
| | - U Pastorino
- Thoracic Surgery Unit, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - N Sverzellati
- Section of Radiology, Department of Surgical Sciences, University Hospital of Parma, Parma, Italy.
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ACR Appropriateness Criteria Review ACR Appropriateness Criteria® Occupational Lung Diseases. J Thorac Imaging 2016; 31:W1-3. [PMID: 26656194 DOI: 10.1097/rti.0000000000000194] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Occupational lung disease is a category of disease entities characterized by a reaction of the lung parenchyma to inhaled aerosolized particles found in the environment. This document summarizes the imaging appropriateness data for silicosis, coal worker pneumoconiosis, and asbestosis. The main points of the document are that computed tomography is more sensitive than radiography, computed tomography without contrast generally suffices for evaluation, and fluorodeoxyglucose-positron emission tomography may have utility in patients with mesothelioma. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed every 3 years by a multidisciplinary expert panel. The guideline development and review includes an extensive analysis of current medical literature from peer-reviewed journals and the application of a well-established consensus methodology (modified Delphi) to rate the appropriateness of imaging and treatment procedures by the panel. In those instances in which evidence is lacking or not definitive, expert opinion may be used to recommend imaging or treatment.
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Hofmann-Preiß K, Rehbock B. [Early recognition of lung cancer in workers occupationally exposed to asbestos]. Radiologe 2016; 56:810-6. [PMID: 27502004 DOI: 10.1007/s00117-016-0151-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Despite the fact that working with asbestos and placing it on the market have been banned in Germany since 1993 according to the Ordinance on Hazardous Substances, asbestos-related diseases of the lungs and pleura are still the leading cause of death in occupational diseases. The maximum industrial usage of asbestos was reached in former West Germany in the late 1970s and in former East Germany the late 1980s. Occupational diseases, mainly mesotheliomas and lung cancer emerging now are thus caused by asbestos exposure which occurred 30-40 years earlier. It is known that the combination of smoking and asbestos exposure results in a superadditive increase in the risk to develop lung cancer. No suitable screening methods for early detection of malignant mesothelioma are currently available and the therapeutic options are still very limited; however, the national lung screening trial (NLST) has shown for the first time that by employing low-dose computed tomography (LDCT) in heavy smokers, lung cancer mortality can be significantly reduced. According to current knowledge the resulting survival benefits far outweigh the potential risks involved in the diagnostic work-up of suspicious lesions. These results in association with the recommendations of international medical societies and organizations were pivotal as the German statutory accident insurance (DGUV) decided to provide LDCT as a special occupational medical examination for workers previously exposed to asbestos and with a particularly high risk for developing lung cancer.
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Affiliation(s)
- K Hofmann-Preiß
- BDT MVZ Erlangen, Wetterkreuz 21, 91058, Erlangen, Deutschland.
| | - B Rehbock
- Praxis für Diagnostische Radiologie mit pneumologischem Schwerpunkt, Bismarck-Str. 45-47, 10627, Berlin, Deutschland
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18
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Murray CP, Wong PM, Teh J, de Klerk N, Rosenow T, Alfonso H, Reid A, Franklin P, Musk AWB, Brims FJH. Ultra low dose CT screen-detected non-malignant incidental findings in the Western Australian Asbestos Review Programme. Respirology 2016; 21:1419-1424. [DOI: 10.1111/resp.12826] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 04/07/2016] [Accepted: 04/08/2016] [Indexed: 11/29/2022]
Affiliation(s)
- Conor P. Murray
- Department of Diagnostic Imaging; Royal Perth Hospital; Perth Western Australia Australia
| | - Patrick M. Wong
- Department of Diagnostic Imaging; Royal Perth Hospital; Perth Western Australia Australia
| | - Joelin Teh
- Department of Diagnostic Imaging; Royal Perth Hospital; Perth Western Australia Australia
| | - Nick de Klerk
- School of Population Health; University of Western Australia; Perth Western Australia Australia
- Telethon Kids Institute; University of Western Australia; Subiaco Western Australia Australia
| | - Tim Rosenow
- Telethon Kids Institute; University of Western Australia; Subiaco Western Australia Australia
| | - Helman Alfonso
- School of Public Health; Curtin University; Perth Western Australia Australia
| | - Alison Reid
- School of Public Health; Curtin University; Perth Western Australia Australia
| | - Peter Franklin
- School of Population Health; University of Western Australia; Perth Western Australia Australia
| | - A. W. Bill Musk
- School of Population Health; University of Western Australia; Perth Western Australia Australia
- Department of Respiratory Medicine; Sir Charles Gairdner Hospital; Perth Western Australia Australia
- School of Medicine and Pharmacology; University of Western Australia; Perth Western Australia Australia
| | - Fraser J. H. Brims
- Department of Respiratory Medicine; Sir Charles Gairdner Hospital; Perth Western Australia Australia
- School of Medicine and Pharmacology; University of Western Australia; Perth Western Australia Australia
- Institute for Respiratory Health; Perth Western Australia Australia
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Mascalchi M, Lopes Pegna A, Carrozzi L, Carozzi F, Falaschi F, Picozzi G, Paci E. Does UKLS strategy increase the yield of screen-detected lung cancers? A comparison with ITALUNG: Table 1. Thorax 2016; 71:950-1. [DOI: 10.1136/thoraxjnl-2016-208409] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 04/25/2016] [Indexed: 11/04/2022]
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Abstract
BACKGROUND In the year 2012, out of the 10 most frequently recognized occupational diseases 6 were forms of pneumoconiosis. With respect to healthcare and economic aspects, silicosis and asbestos-associated diseases are of foremost importance. The latter are to be found everywhere and are not restricted to large industrial areas. PROBLEM Radiology has a central role in the diagnosis and evaluation of occupational lung disorders. In cases of known exposure mainly to asbestos and quartz, the diagnosis of pneumoconiosis, with few exceptions will be established primarily by the radiological findings. As these disorders are asymptomatic for a long time they are quite often detected as incidental findings in examinations for other reasons. Therefore, radiologists have to be familiar with the pattern of findings of the most frequent forms of pneumoconiosis and the differential diagnoses. STANDARDIZED PROCEDURE IN EXAMINATIONS For reasons of equal treatment of the insured a quality-based, standardized performance, documentation and evaluation of radiological examinations is required in preventive procedures and evaluations. Above all, a standardized low-dose protocol has to be used in computed tomography (CT) examinations, although individualized concerning the dose, in order to keep radiation exposure as low as possible for the patient. STANDARDIZED EVALUATION The International Labour Office (ILO) classification for the coding of chest X-rays and the international classification of occupational and environmental respiratory diseases (ICOERD) classification used since 2004 for CT examinations meet the requirements of the insured and the occupational insurance associations as a means of reproducible and comparable data for decision-making.
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Affiliation(s)
- K G Hering
- Knappschaftskrankenhaus, Klinikum Westfalen, Am Knappschaftskrankenhaus 1, 44309, Dortmund, Deutschland,
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21
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TAMURA T, SUGANUMA N, HERING KG, VEHMAS T, ITOH H, AKIRA M, TAKASHIMA Y, HIRANO H, KUSAKA Y. Relationships (I) of International Classification of High-resolution Computed Tomography for Occupational and Environmental Respiratory Diseases with the ILO International Classification of Radiographs of Pneumoconioses for parenchymal abnormalities. INDUSTRIAL HEALTH 2015; 53:260-70. [PMID: 25810444 PMCID: PMC4463184 DOI: 10.2486/indhealth.2014-0073] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The International Classification of High-resolution Computed Tomography (HRCT) for Occupational and Environmental Respiratory Diseases (ICOERD) has been developed for the screening, diagnosis, and epidemiological reporting of respiratory diseases caused by occupational hazards. This study aimed to establish a correlation between readings of HRCT (according to the ICOERD) and those of chest radiography (CXR) pneumoconiotic parenchymal opacities (according to the International Labor Organization Classification/International Classification of Radiographs of Pneumoconioses [ILO/ICRP]). Forty-six patients with and 28 controls without mineral dust exposure underwent posterior-anterior CXR and HRCT. We recorded all subjects' exposure and smoking history. Experts independently read CXRs (using ILO/ICRP). Experts independently assessed HRCT using the ICOERD parenchymal abnormalities grades for well-defined rounded opacities (RO), linear and/or irregular opacities (IR), and emphysema (EM). The correlation between the ICOERD summed grades and ILO/ICRP profusions was evaluated using Spearman's rank-order correlation. Twenty-three patients had small opacities on CXR. HRCT showed that 21 patients had RO; 20 patients, IR opacities; and 23 patients, EM. The correlation between ILO/ICRP profusions and the ICOERD grades was 0.844 for rounded opacities (p<0.01). ICOERD readings from HRCT scans correlated well with previously validated ILO/ICRP criteria. The ICOERD adequately detects pneumoconiotic micronodules and can be used for the interpretation of pneumoconiosis.
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Affiliation(s)
- Taro TAMURA
- Department of Environmental Health, University of Fukui
School of Medicine, Japan
- *To whom correspondence should be addressed. E-mail:
| | - Narufumi SUGANUMA
- Department of Environmental Medicine, Kochi University School
of Medicine, Japan
| | - Kurt G. HERING
- Department of Diagnostic Radiology, Radiology and Nuclear
Medicine, Radiological Clinic, Miner’s Hospital, Germany
| | - Tapio VEHMAS
- Department of Radiology, Finnish Institute of Occupational
Health, Finland
| | - Harumi ITOH
- Department of Radiology, University of Fukui School of
Medicine, Japan
| | - Masanori AKIRA
- Department of Radiology, National Hospital Organization
Kinki-Chuo Chest Medical Center, Japan
| | | | | | - Yukinori KUSAKA
- Department of Environmental Health, University of Fukui
School of Medicine, Japan
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Pairon JC, Andujar P, Rinaldo M, Ameille J, Brochard P, Chamming’s S, Clin B, Ferretti G, Gislard A, Laurent F, Luc A, Wild P, Paris C. Asbestos Exposure, Pleural Plaques, and the Risk of Death from Lung Cancer. Am J Respir Crit Care Med 2014; 190:1413-20. [DOI: 10.1164/rccm.201406-1074oc] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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23
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Ollier M, Garcier JM, Naughton G, Chamoux A, Pereira B, Dutheil F. CT scan procedure for lung cancer screening in asbestos-exposed workers. Chest 2014; 146:e76-e77. [PMID: 25091781 DOI: 10.1378/chest.14-0831] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Affiliation(s)
- Marie Ollier
- Department of Occupational Medicine, Centre Hospitalier Universitaire de Clermont-Ferrand, Clermont-Ferrand, France; Laboratory of Molecular Oncology EA 4677, Centre Jean Perrin
| | - Jean-Marc Garcier
- Department of Radiology, Centre Hospitalier Universitaire de Clermont-Ferrand, Clermont-Ferrand, France
| | - Geraldine Naughton
- School of Exercise Science, Australian Catholic University, Fitzroy, VIC, Australia
| | - Alain Chamoux
- Department of Occupational Medicine, Centre Hospitalier Universitaire de Clermont-Ferrand, Clermont-Ferrand, France
| | - Bruno Pereira
- Clinical Research and Innovation Direction, Centre Hospitalier Universitaire de Clermont-Ferrand
| | - Frédéric Dutheil
- Department of Occupational Medicine, Centre Hospitalier Universitaire de Clermont-Ferrand, Clermont-Ferrand, France; School of Exercise Science, Australian Catholic University, Fitzroy, VIC, Australia; Laboratory of Metabolic Adaptations to Exercise in Physiological and Pathological Conditions EA3533, Université Blaise Pascal, Clermont-Ferrand, France; INRA Unité Mixte de Recherche (UMR) 1019, Unité de Nutrition Humaine (UNH), CRNH Auvergne, Université d'Auvergne, Clermont-Ferrand, France.
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Ollier M, Chamoux A, Naughton G, Pereira B, Dutheil F. Chest CT scan screening for lung cancer in asbestos occupational exposure: a systematic review and meta-analysis. Chest 2014; 145:1339-1346. [PMID: 24480869 DOI: 10.1378/chest.13-2181] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
OBJECTIVE Lung cancer is the most frequent malignant asbestos-related pathology and remains the most fatal cancer of industrialized countries. In heavy smokers, early detection of lung cancer with chest CT scan leads to a 20% mortality reduction. However, the use of CT scan screening for early detection of lung cancer in asbestos-exposed workers requires further investigation. This study aimed to determine whether CT scan screening in asbestos-exposed workers is effective in detecting asymptomatic lung cancer using a systematic review and meta-analysis. METHODS We reviewed all cohort studies involving chest CT scan screening in former asbestos-exposed workers. The search strategy used the following keywords: "asbestos," "lung cancer," "screening," and "occupation*" or "work." Databases were PubMed, Cochrane Library, Science Direct, and Embase. RESULTS Seven studies matched our inclusion criteria. Baseline screening detected 49 asymptomatic lung cancers among 5,074 asbestos-exposed workers. Of the 49 reported lung cancers, at least 18 were in the earliest stage (stage I), accessible to complete removal surgery. The prevalence of all lung cancers detected by CT scan screening in asbestos-exposed workers was 1.1% (95% CI, 0.6%-1.8%). CONCLUSIONS CT scan screening in asbestos-exposed workers is effective in detecting asymptomatic lung cancer. Detection of lung cancer in asbestos-exposed workers using CT scanning is at least equal to the prevalence in heavy smokers (1%; 95% CI, 0.09%-1.1%) and also shared a similar proportion of stage I diagnoses. Screening asbestos-exposed workers could reduce mortality in proportions previously observed among heavy smokers and, thus, should not be neglected, particularly for individuals combining both exposures.
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Affiliation(s)
- Marie Ollier
- Department of Occupational Medicine, Clinical Research and Innovation Direction, Sport Medicine and Functional Exploration, University Hospital CHU G. Montpied, Clermont-Ferrand, France; Laboratory of Metabolic Adaptations to Exercise in Physiological and Pathological Conditions EA3533, Blaise Pascal University, Clermont-Ferrand, France
| | - Alain Chamoux
- Department of Occupational Medicine, Clinical Research and Innovation Direction, Sport Medicine and Functional Exploration, University Hospital CHU G. Montpied, Clermont-Ferrand, France
| | - Geraldine Naughton
- Laboratory of Metabolic Adaptations to Exercise in Physiological and Pathological Conditions EA3533, Blaise Pascal University, Clermont-Ferrand, France
| | - Bruno Pereira
- Laboratory of Molecular Oncology EA 4677, Centre Jean Perrin, Clermont-Ferrand, France
| | - Frédéric Dutheil
- Department of Occupational Medicine, Clinical Research and Innovation Direction, Sport Medicine and Functional Exploration, University Hospital CHU G. Montpied, Clermont-Ferrand, France; School of Exercise Science, Australian Catholic University, Fitzroy, VIC, Australia; Laboratory of Metabolic Adaptations to Exercise in Physiological and Pathological Conditions EA3533, Blaise Pascal University, Clermont-Ferrand, France; INRA UMR 1019, UNH, CRNH Auvergne, University of Auvergne, Clermont-Ferrand, France.
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Eisenhawer C, Felten MK, Tamm M, Das M, Kraus T. Radiological surveillance of formerly asbestos-exposed power industry workers: rates and risk factors of benign changes on chest X-ray and MDCT. J Occup Med Toxicol 2014; 9:18. [PMID: 24808921 PMCID: PMC4012178 DOI: 10.1186/1745-6673-9-18] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Accepted: 04/17/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To determine the prevalence of asbestos-related changes on chest X-ray (CXR) and low-dose multidetector-row CT (MDCT) of the thorax in a cohort of formerly asbestos-exposed power industry workers and to assess the importance of common risk factors associated with specific radiological changes. METHODS To assess the influence of selected risk factors (age, time since first exposure, exposure duration, cumulative exposure and pack years) on typical asbestos-related radiographic changes, we employed multiple logistic regression and receiver operating characteristic (ROC) analysis. RESULTS On CXR, pleural changes and asbestosis were strongly associated with age, years since first exposure and exposure duration. The MDCT results showed an association between asbestosis and age and between plaques and exposure duration, years since first exposure and cumulative exposure. Parenchymal changes on CXR and MDCT, and diffuse pleural thickening on CXR were both associated with smoking. Using a cut-off of 55 years for age, 17 years for exposure duration and 28 years for latency, benign radiological changes in the cohort with CXR could be predicted with a sensitivity of 82.0% for all of the three variables and a specificity of 47.4%, 39.0% and 40.6%, respectively. CONCLUSIONS Participants aged 55 years and older and those with an asbestos exposure of at least 17 years or 28 years since first exposure should be seen as having an increased risk of abnormal radiological findings. For implementing a more focused approach the routine use of low-dose MDCT rather than CXR at least for initial examinations would be justified.
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Affiliation(s)
- Christian Eisenhawer
- Institute of Occupational and Social Medicine, RWTH Aachen University, Aachen, Germany
| | - Michael K Felten
- Institute of Occupational and Social Medicine, RWTH Aachen University, Aachen, Germany
| | - Miriam Tamm
- Department of Medical Statistics, RWTH Aachen University, Aachen, Germany
| | - Marco Das
- Department of Radiology, Maastricht University Medical Center, Maastricht, The Netherlands ; GROW, School for Oncology & Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands ; Department of Diagnostic Radiology, RWTH Aachen University, Aachen, Germany
| | - Thomas Kraus
- Institute of Occupational and Social Medicine, RWTH Aachen University, Aachen, Germany
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Felten MK, Knoll L, Schikowsky C, Das M, Feldhaus C, Hering KG, Böcking A, Kraus T. Is it useful to combine sputum cytology and low-dose spiral computed tomography for early detection of lung cancer in formerly asbestos-exposed power industry workers? J Occup Med Toxicol 2014; 9:14. [PMID: 24739456 PMCID: PMC4002204 DOI: 10.1186/1745-6673-9-14] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 04/09/2014] [Indexed: 11/29/2022] Open
Abstract
Background Low-dose spiral computed tomography (LDSCT) in comparison to conventional chest X-ray proved to be a highly sensitive method of diagnosing early stage lung cancer. However, centrally located early stage lung tumours remain a diagnostic challenge. We determined the practicability and efficacy of early detection of lung cancer when combining LDSCT and sputum cytology. Methods Of a cohort of 4446 formerly asbestos exposed power industry workers, we examined a subgroup of 187 (4.2%) high risk participants for lung cancer at least once with both LDSCT and sputum cytology. After the examination period the participants were followed-up for more than three years. Results The examinations resulted in the diagnosis of lung cancer in 12 participants (6.4%). Six were in clinical stage I. We found 10 non-small cell lung carcinomas and one small cell lung carcinoma. Sputum specimens showed suspicious pathological findings in seven cases and in 11 cases the results of LDSCT indicated malignancies. The overall sensitivity and specificity of sputum cytology was 58.0% and 98% with positive (PPV) and negative (NPV) predictive values of 70% and 97%. For LDSCT we calculated the sensitivity and specificity of 92% and 97%. The PPV and NPV were 65% and 99% respectively. Conclusions Our results confirmed that in surveillance programmes a combination of sputum cytology and LDSCT is well feasible and accepted by the participants. Sputum examination alone is not effective enough for the detection of lung cancer, especially at early stage. Even in well- defined risk groups highly exposed to asbestos, we cannot recommend the use of combined LDSCT and sputum cytology examinations as long as no survival benefit has been proved for the combination of both methods. For ensuring low rates of false-positive and false-negative results, programme planners must closely cooperate with experienced medical practitioners and pathologists in a well-functioning interdisciplinary network.
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Affiliation(s)
- Michael K Felten
- Institute of Occupational and Social Medicine, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Lars Knoll
- Institute of Occupational and Social Medicine, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Christian Schikowsky
- Institute of Occupational and Social Medicine, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Marco Das
- Department of Diagnostic Radiology, Medical Faculty, RWTH Aachen University, Aachen, Germany ; Department of Radiology, Maastricht University Medical Centre, Maastricht, Netherlands
| | | | - Kurt G Hering
- Department of Diagnostic Radiology, Knappschaftskrankenhaus, Dortmund, Germany
| | - Alfred Böcking
- Institute of Cytopathology, Heinrich Heine University, Düsseldorf, Germany ; Institute of Pathology, Düren Hospital, Düren, Germany
| | - Thomas Kraus
- Institute of Occupational and Social Medicine, Medical Faculty, RWTH Aachen University, Aachen, Germany
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Cox CW, Rose CS, Lynch DA. State of the Art: Imaging of Occupational Lung Disease. Radiology 2014; 270:681-96. [DOI: 10.1148/radiol.13121415] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Four-Year Results of Low-Dose CT Screening and Nodule Management in the ITALUNG Trial. J Thorac Oncol 2013; 8:866-75. [DOI: 10.1097/jto.0b013e31828f68d6] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Pairon JC, Laurent F, Rinaldo M, Clin B, Andujar P, Ameille J, Brochard P, Chammings S, Ferretti G, Galateau-Sallé F, Gislard A, Letourneux M, Luc A, Schorlé E, Paris C. Pleural plaques and the risk of pleural mesothelioma. J Natl Cancer Inst 2013; 105:293-301. [PMID: 23355760 DOI: 10.1093/jnci/djs513] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The association between pleural plaques and pleural mesothelioma remains controversial. The present study was designed to examine the association between pleural plaques on computed tomography (CT) scan and the risk of pleural mesothelioma in a follow-up study of asbestos-exposed workers. METHODS Retired or unemployed workers previously occupationally exposed to asbestos were invited to participate in a screening program for asbestos-related diseases, including CT scan, organized between October 2003 and December 2005 in four regions in France. Randomized, independent, double reading of CT scans by a panel of seven chest radiologists focused on benign asbestos-related abnormalities. A 7-year follow-up study was conducted in the 5287 male subjects for whom chest CT scan was available. Annual determination of the number of subjects eligible for free medical care because of pleural mesothelioma was carried out. Diagnosis certification was obtained from the French mesothelioma panel of pathologists. Survival regression based on the Cox model was used to estimate the risk of pleural mesothelioma associated with pleural plaques, with age as the main time variable and time-varying exposure variables, namely duration of exposure, time since first exposure, and cumulative exposure index to asbestos. All statistical tests were two-sided. RESULTS A total of 17 incident cases of pleural mesothelioma were diagnosed. A statistically significant association was observed between mesothelioma and pleural plaques (unadjusted hazard ratio (HR) = 8.9, 95% confidence interval [CI] = 3.0 to 26.5; adjusted HR = 6.8, 95% CI = 2.2 to 21.4 after adjustment for time since first exposure and cumulative exposure index to asbestos). CONCLUSION The presence of pleural plaques may be an independent risk factor for pleural mesothelioma.
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Affiliation(s)
- Jean-Claude Pairon
- Service de pneumologie et pathologie professionnelle, Centre Hospitalier Intercommunal de Créteil, 40 avenue de Verdun, 94010 Créteil cedex, France.
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Flat-panel detector computed tomography imaging: observer performance in detecting pulmonary nodules in comparison with conventional chest radiography and multidetector computed tomography. J Thorac Imaging 2012; 27:51-7. [PMID: 21307781 DOI: 10.1097/rti.0b013e31820321e2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
PURPOSE The aim of this study was to compare the detectability of lung nodules on images obtained with a flat-panel detector computed tomography (FPD-CT) system and by chest radiographs (CXRs) using receiver-operating characteristic (ROC) analysis. MATERIALS AND METHODS FPD-CT was conducted with the patients in the sitting position. For the CXR study, the patients stood erect. Our study population consisted of 26 individuals ranging in age from 50 to 83 years. The reference standard was based on the interpretations obtained by consensus of 2 radiologists on multidetector CT images for the presence or absence of nodules. Four other radiologists independently assessed and recorded the absence or presence of lung nodules and their location on FPD-CT and CXR images. ROC analysis was used to evaluate lung nodule detectability by both imaging modalities. RESULTS Two radiologists identified 34 nodules whose diameter was 5 to 42 mm (mean, 19.3 mm) in 23 of the 26 study participants on the multidetector CT images. Overall, analysis of variance for ROC analysis showed that FPD-CT was significantly better in detecting nodules than CXR (P=0.02). The estimated mean Az value was 0.9818±0.0083 with FPD-CT and 0.7610±0.0908 with CXR. The sensitivity for nodule detection on FPD-CT and CXR images was 79.4% and 33.8%, respectively. CONCLUSION The detectability of pulmonary nodules was better on images of FPD-CT than on CXRs.
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Dalphin JC. Quels sont les objectifs du suivi post-professionnel, les bénéfices attendus et les risques possibles ? Objectifs médicaux en termes de morbidité, mortalité et qualité de vie. Rev Mal Respir 2011; 28:1230-40. [DOI: 10.1016/j.rmr.2011.06.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Accepted: 06/25/2011] [Indexed: 11/25/2022]
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Ferretti G. [What are the tools for post-occupational follow-up, how should they be performed and what are their performance, limits and benefit/risk ratio? Chest X-Ray and CT scan]. Rev Mal Respir 2011; 28:761-72. [PMID: 21742237 DOI: 10.1016/j.rmr.2011.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2011] [Accepted: 02/17/2011] [Indexed: 10/18/2022]
Abstract
Chest radiography and computed tomography (CT) are the two radiological techniques used for the follow-up of people exposed to asbestos. Since the last conference of consensus (1999), the scientific literature has primarily covered high-resolution CT and high-resolution volume CT (HR-VCT). We consider in turn the contribution of digital thoracic radiography, recommendations for the performance of HR-VCT to ensure the quality of examination while controlling the delivered radiation dose, and the need to refer to the "CT atlas of benign diseases related to asbestos exposure", published by a group of French experts in 2007, for interpretation. The results of the published studies concerning radiography or CT are then reviewed. We note the great interobserver variability in the recognition of pleural plaques and asbestosis, indicating the need for adequate training of radiologists, and the importance of defining standardized, quantified criteria for CT abnormalities. The very low agreement between thoracic and general radiologists must be taken into account. The reading of CT scans in cases of occupational exposure to asbestos should be entrusted to thoracic radiologists or to general radiologists having validated specific training. A double interpretation of CT could be considered in medicosocial requests. CT is more sensitive than chest radiography in the detection of bronchial carcinoma but generates a great number of false positive results (96 to 99%). No scientific data are available to assess the role of imaging by either CT or chest radiography in the early detection of mesothelioma.
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Affiliation(s)
- G Ferretti
- Université J-Fourrier, BP 53, 38041 Grenoble cedex 9, France.
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Abstract
The early diagnosis of mesothelioma is notoriously difficult, both from a clinical and pathological perspective. Patients often undergo several medical investigations without definitive diagnosis. The discovery of biomarkers that can be assessed in pleural effusions, histological samples, and serum may assist with the difficult early diagnosis of mesothelioma. In this chapter we focus on those markers that have been examined in the setting of either early diagnosis of mesothelioma in symptomatic individuals or that have been proposed as suitable for screening of asbestos-exposed individuals, with an emphasis on cytology and histology.
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Ferretti G. [Exposure to asbestos : radiography and chest CT]. JOURNAL DE RADIOLOGIE 2011; 92:450-60. [PMID: 21621114 DOI: 10.1016/j.jradio.2011.03.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Accepted: 03/31/2011] [Indexed: 12/21/2022]
Affiliation(s)
- G Ferretti
- Université J.-Fourrier, Grenoble, France.
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Suivi après exposition professionnelle à l’amiante : modalités et dispositifs étrangers. Rev Mal Respir 2011; 28:556-64. [DOI: 10.1016/j.rmr.2010.08.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2010] [Accepted: 08/30/2010] [Indexed: 11/20/2022]
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Paris C, Maurel M, Luc A, Stoufflet A, Pairon JC, Letourneux M. CT scan screening is associated with increased distress among subjects of the APExS. BMC Public Health 2010; 10:647. [PMID: 20977751 PMCID: PMC2988732 DOI: 10.1186/1471-2458-10-647] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2010] [Accepted: 10/26/2010] [Indexed: 12/21/2022] Open
Abstract
Background The aim of this study was to assess the psychological consequences of HRCT scan screening in retired asbestos-exposed workers. Methods A HRCT-scan screening program for asbestos-related diseases was carried out in four regions of France. At baseline (T1), subjects filled in self-administered occupational questionnaires. In two of the regions, subjects also received a validated psychological scale, namely the psychological consequences questionnaire (PCQ). The physician was required to provide the subject with the results of the HRCT scan at a final visit. A second assessment of psychological consequences was performed 6 months after the HRCT-scan examination (T2). PCQ scores were compared quantitatively (t-test, general linear model) and qualitatively (chi²-test, logistic regression) to screening results. Multivariate analyses were adjusted for gender, age, smoking, asbestos exposure and counseling. Results Among the 832 subjects included in this psychological impact study, HRCT-scan screening was associated with a significant increase of the psychological score 6 months after the examination relative to baseline values (8.31 to 10.08, p < 0.0001, t-test). This increase concerned patients with an abnormal HRCT-scan result, regardless of the abnormalities, but also patients with normal HRCT-scans after adjustment for age, gender, smoking status, asbestos exposure and counseling visit. The greatest increase was observed for pleural plaques (+3.60; 95%CI [+2.15;+5.06]), which are benign lesions. Detection of isolated pulmonary nodules was also associated with a less marked but nevertheless significant increase of distress (+1.88; 95%CI [+0.34;+3.42]). However, analyses based on logistic regressions only showed a close to significant increase of the proportion of subjects with abnormal PCQ scores at T2 for patients with asbestosis (OR = 1.92; 95%CI [0.97-3.81]) or with two or more diseases (OR = 2.04; 95%CI [0.95-4.37]). Conclusion This study suggests that HRCT-scan screening may be associated with increased distress in asbestos-exposed subjects. If confirmed, these results may have consequences for HRCT-scan screening recommendations.
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Lotti M, Bergamo L, Murer B. Occupational toxicology of asbestos-related malignancies. Clin Toxicol (Phila) 2010; 48:485-96. [PMID: 20849338 DOI: 10.3109/15563650.2010.506876] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
INTRODUCTION Asbestos is banned in most Western countries but related malignancies are still of clinical concern because of their long latencies. This review identifies and addresses some controversial occupational and clinical aspects of asbestos-related malignancies. METHODS Papers published in English from 1980 to 2009 were retrieved from PubMed. A total of 307 original articles were identified and 159 were included. ASSESSMENT OF EXPOSURE The retrospective assessment of exposure is usually performed by using questionnaires and job exposure matrices and by careful collection of medical history. In this way crucial information about manufacturing processes and specific jobs can be obtained. In addition, fibers and asbestos bodies are counted in lung tissue, broncho-alveolar lavage, and sputum, but different techniques and interlaboratory variability hamper the interpretation of reported measurements. SCREENING FOR MALIGNANCIES: The effectiveness of low-dose chest CT screening in exposed workers is debatable. Several biomarkers have also been considered to screen individuals at risk for lung cancer and mesothelioma but reliable signatures are still missing. ATTRIBUTION OF LUNG CANCER: Exposures correlating with lung cancer are high and in the same range where asbestosis occurs. However, the unresolved question is whether the presence of fibrosis is a requirement for the attribution of lung cancer to asbestos. The etiology of lung cancer is difficult to define in cases of low-level asbestos exposure and concurrent smoking habits. MESOTHELIOMA: The diagnosis of malignant mesothelioma may also be difficult, because of procedures in sampling, fixation, and processing, and uses of immunohistochemical probes. CONCLUSIONS Assessment of exposure is crucial and requires accurate medical and occupational histories. Quantitative analysis of asbestos body burden is better performed in digested lung tissues by counting asbestos bodies by light microscopy and/or uncoated fibers by transmission electron microscopy. The benefits of screenings for asbestos-related malignancies are equivocal. The attribution of lung cancer to asbestos exposure is difficult in a clinical setting because of the need to assess asbestos body burden and the fact that virtually all these patients are also tobacco smokers or former smokers. Given the premise that asbestosis is necessary to causally link lung cancer to asbestos, it follows that the assessment of both lung fibrosis and asbestos body burden is necessary.
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Affiliation(s)
- Marcello Lotti
- Dipartimento di Medicina Ambientale e Sanità Pubblica, Università degli Studi di Padova, Padova, Italy.
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Pass HI, Carbone M. Current status of screening for malignant pleural mesothelioma. Semin Thorac Cardiovasc Surg 2009; 21:97-104. [PMID: 19822280 DOI: 10.1053/j.semtcvs.2009.06.007] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/24/2009] [Indexed: 11/11/2022]
Abstract
Malignant mesothelioma is characterized by its association with asbestos, its long latency period, and the propensity for the diagnosis to be obtained in the later stages of the disease. Because the high-risk cohorts for mesothelioma are fairly well defined by the association with asbestos, and the exposure is usually in the workplace, it is hypothesized that early detection of the disease could (1) find patients at an earlier, more treatable stage and (2) result in prolonged survival over the present median 12 months from the start of therapy. Many studies have used standard chest X-ray to characterize changes associated with asbestos-exposed individuals, but the insensitivity of X-ray in screening patients with mesothelioma has never supported the wide-scale adaptation of such an effort. With the advent of computerized tomography, prospective trials, many of which are chiefly prevalence detection studies, have been performed and stress the importance for proper detailing by carefully qualifying suspicious changes, as well as defining the correct cohort to screen. Most recently, serum biomarkers with the potential to discriminate asbestos-exposed, non-cancer-bearing individuals from those with mesothelioma have been investigated both at single institutions and with multi-institutional-blinded trials. These markers, including soluble mesothelin-related protein, osteopontin, and megakaryocyte potentiating factor, may, in the future, be incorporated into a screening algorithm for high-risk asbestos-exposed individuals to help monitor these cohorts in a noninvasive fashion and guide the use of computerized tomography.
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Affiliation(s)
- Harvey I Pass
- Division of Thoracic Surgery and Thoracic Oncology, Department of Cardiothoracic Surgery, NYU Langone Medical Center, New York, New York 10016, USA.
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Screening for Malignant Pleural Mesothelioma and Lung Cancer in Individuals with a History of Asbestos Exposure. J Thorac Oncol 2009; 4:620-8. [DOI: 10.1097/jto.0b013e31819f2e0e] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Maurel M, Stoufflet A, Thorel L, Berna V, Gislard A, Letourneux M, Pairon JC, Paris C. Factors associated with cancer distress in the Asbestos Post-Exposure Survey (APEXS). Am J Ind Med 2009; 52:288-96. [PMID: 19152347 DOI: 10.1002/ajim.20672] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVES CT-scan screening programs for lung cancer detection have been proposed in high-risk subjects, and more recently in former asbestos-exposed subjects. However, to date no data are available on psychological impact of such programs. The aim of this study is to examine the risk factors of psychological distress at baseline of a CT-scan screening program among asbestos-exposed subjects. METHODS The Asbestos Post-Exposure Survey (APEXS) was carried out in France between October 2003 and December 2005 in order to screen asbestos-related diseases by CT-scan. Volunteers underwent self-administered questionnaires including an asbestos exposure assessment and, for a large sub-sample, a validated psychological distress scale. Non-exposed subjects were used as reference group. RESULTS At baseline, a significant higher level of distress was observed in exposed subjects (n = 3,122) relative to the reference group (n = 486) after adjustment on age, sex, and tobacco status. This distress is associated independently with the self-perception of (i) intensity of asbestos exposure and (ii) the risk of current or future disease related to the asbestos exposure. The perception of the cancer risk related to asbestos seems to play a fundamental role in this psychological distress. CONCLUSION In this study, asbestos-exposed subjects experienced a higher significant cancer distress than previously described in literature. These findings may be of potential public health importance. First, the impact of such occupational exposures on quality of life of patients who suffer from cancer related to these exposures has to be appraised. Secondly, the assessment of psychological impact of CT-scan screening programs among asbestos-exposed subjects is also required.
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Affiliation(s)
- Marion Maurel
- EA 2304 Centre Georges Devereux, Saint-Denis Cedex, France
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Computer-aided measurements of pulmonary emphysema in chest multidetector-row spiral computed tomography: effect of image reconstruction parameters. J Comput Assist Tomogr 2009; 32:899-904. [PMID: 19204452 DOI: 10.1097/rct.0b013e31815ade64] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To evaluate the effect of different image reconstruction parameters on quantitative automated measurements of pulmonary emphysema in chest multidetector-row spiral computed tomography. MATERIALS AND METHODS Thirty patients with known emphysema underwent multidetector-row spiral computed tomography. Retrospective reconstruction with a soft tissue kernel (Siemens B20 at 1-mm, 2-mm, and 3-mm slices) and 4 alternative kernel grades (from smooth to sharp: Siemens B30, B40, B50, B60 at 1-mm slices) was performed. Total lung volume, emphysema volume (EV), 15th percentile density, and 4 EV clusters were quantified. Results were compared with those of standard algorithm B20/1-mm slices. RESULTS Differences in total lung volume were less than 0.2%. Alternative kernel grades resulted in a significantly increased average EV. The 15th percentile density showed a significant average difference for all alternative algorithms. The large emphysema cluster showed a significant change for reconstruction algorithms B50, B60, B20/2 mm and B20/3 mm. CONCLUSIONS Pulmonary EV is significantly affected by different reconstruction algorithms.
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Das M, Mühlenbruch G, Heinen S, Mahnken AH, Salganicoff M, Stanzel S, Günther RW, Wildberger JE. Performance evaluation of a computer-aided detection algorithm for solid pulmonary nodules in low-dose and standard-dose MDCT chest examinations and its influence on radiologists. Br J Radiol 2008; 81:841-7. [PMID: 18941043 DOI: 10.1259/bjr/50635688] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The aim of the study was to evaluate the performance of a computer-aided detection (CAD) algorithm in low-dose and full-dose multidetector-row CT (MDCT) of the thorax and its impact on radiologists' performance. Chest CT examinations of 77 patients were evaluated retrospectively for pulmonary nodules. All patients had undergone a 16-slice MDCT chest examination with a standard acquisition protocol. Artificial image noise was added to the raw data to simulate image acquisition at 10 mAs(eff.) The data were transferred to dedicated lung analysis software (LungCare) with a prototype CAD algorithm (LungCAD). CAD was applied to both dose settings. Images were read by a radiologist and a first-year resident with and without the software at both dose settings. All images were reviewed in consensus by the two radiologists to set the reference standard. Sensitivity results with respect to the reference standard were compared. No statistically significant differences in the detection rate for all pulmonary nodules could be found between low-dose and full-dose settings for the CAD software alone (p = 0.0065). Both radiologists displayed a statistically significant increase in sensitivity with the use of CAD (p<0.0001). In conclusion, CAD is beneficial in both low-dose and standard-dose settings. This may be beneficial in reducing false-negative diagnosis in lung cancer screening, standard chest examinations and the search for metastases.
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Affiliation(s)
- M Das
- Department of Diagnostic Radiology, RWTH Aachen University Hospital, Aachen, Germany.
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Paris C, Martin A, Letourneux M, Wild P. Modelling prevalence and incidence of fibrosis and pleural plaques in asbestos-exposed populations for screening and follow-up: a cross-sectional study. Environ Health 2008; 7:30. [PMID: 18570653 PMCID: PMC2441611 DOI: 10.1186/1476-069x-7-30] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2007] [Accepted: 06/20/2008] [Indexed: 05/26/2023]
Abstract
BACKGROUND CT-Scan is currently under assessment for the screening of asbestos-related diseases. However, to date no consensus exists as to how to select high-risk asbestos-exposed populations suitable for such screening programs. The objective of this study is to select the most relevant exposure variables for the prediction of pleural plaques and asbestosis in order to guide clinicians in their use of CT-Scan. METHODS A screening program of non malignant asbestos-related diseases by CT-scan was conducted among asbestos-exposed volunteers in France. Precise assessments of asbestos exposure were obtained by occupational hygiene measurements and a job-exposure matrix. Several parameters were calculated (time since first exposure, duration, intensity and cumulative exposure to asbestos). Predictive parameters of prevalence and incidence were then estimated by standard logistic and a complementary log-log regression models. RESULTS 1011 subjects were recruited in this screening program among them 474 (46.9%) presented with pleural plaques and 61 (6.0%) with interstitial changes compatible with asbestosis on CT-scan. Time since first exposure (p < 0.0001) and either cumulative or mean exposure (p < 0.0001) showed independent associations with both pleural plaques and asbestosis prevalence and pleural plaques incidence. Modelling incidence of pleural plaques showed a 0.8% to 2.4% yearly increase for a mean exposure of 1 f/ml. CONCLUSION Our findings confirmed the role played by time since first exposure and dose but not duration in asbestos-related diseases. We recommend to include these parameters in high-risk populations suitable for screening of these diseases. Short-periodicity of survey of pleural plaques by CT-Scan seemed not to be warranted.
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Affiliation(s)
- Christophe Paris
- Inserm ERI-11, Assessment and prevention of occupational and environmental risks Medical School, 9 av de la Forêt de Haye – BP 184, 54505 Vandoeuvre-les-Nancy Cedex, France
- Nancy-University, 1 rue Lyautey, 54000 Nancy, France
| | - Aurélie Martin
- Inserm ERI-11, Assessment and prevention of occupational and environmental risks Medical School, 9 av de la Forêt de Haye – BP 184, 54505 Vandoeuvre-les-Nancy Cedex, France
| | - Marc Letourneux
- Occupational Diseases Department, University Hospital, Avenue de la cote de Nacre, 14000 CAEN, France
| | - Pascal Wild
- Département Epidémiologie en Entreprises, Rue du Morvan, CS 60027,54519 Vandoeuvre Les Nancy Cedex, France
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Fasola G, Belvedere O, Aita M, Zanin T, Follador A, Cassetti P, Meduri S, De Pangher V, Pignata G, Rosolen V, Barbone F, Grossi F. Low‐Dose Computed Tomography Screening for Lung Cancer and Pleural Mesothelioma in an Asbestos‐Exposed Population: Baseline Results of a Prospective, Nonrandomized Feasibility Trial—An Alpe‐Adria Thoracic Oncology Multidisciplinary Group Study (ATOM 002). Oncologist 2007; 12:1215-24. [PMID: 17962615 DOI: 10.1634/theoncologist.12-10-1215] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- Gianpiero Fasola
- Department of Medical Oncology, University Hospital of Udine, P.le S. M. Misericordia 15, 33100 Udine, Italy.
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Cancer et environnement: le cas de l’amiante. ONCOLOGIE 2007. [DOI: 10.1007/s10269-007-0641-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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