Application of Ultrasonography and Radiography in Detection of Hemothorax: a Systematic Review and Meta-Analysis

Introduction: Hemothorax is one of the most prevalent injuries caused by thoracic traumas. Early detection and treatment of this injury is of utmost importance in prognosis of the patient, but there are still controversial debates on the diagnostic value of imaging techniques in detection of hemoth...

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Main Authors: Vafa Rahimi-Movaghar, Mahmoud Yousefifard, Parisa Ghelichkhani, Masoud Baikpour, Abbas Tafakhori, Hadi Asady, Gholamreza Faridaalaee, Mostafa Hosseini, Saeed Safari
Format: Article
Language:English
Published: Shahid Beheshti University of Medical Sciences 2018-12-01
Series:Archives of Academic Emergency Medicine
Subjects:
Online Access:https://journals.sbmu.ac.ir/aaem/index.php/AAEM/article/view/234
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author Vafa Rahimi-Movaghar
Mahmoud Yousefifard
Parisa Ghelichkhani
Masoud Baikpour
Abbas Tafakhori
Hadi Asady
Gholamreza Faridaalaee
Mostafa Hosseini
Saeed Safari
author_facet Vafa Rahimi-Movaghar
Mahmoud Yousefifard
Parisa Ghelichkhani
Masoud Baikpour
Abbas Tafakhori
Hadi Asady
Gholamreza Faridaalaee
Mostafa Hosseini
Saeed Safari
author_sort Vafa Rahimi-Movaghar
collection DOAJ
description Introduction: Hemothorax is one of the most prevalent injuries caused by thoracic traumas. Early detection and treatment of this injury is of utmost importance in prognosis of the patient, but there are still controversial debates on the diagnostic value of imaging techniques in detection of hemothorax. Therefore, the present study aimed to evaluate the diagnostic value of chest ultrasonography and radiography in detection of hemothorax through a systematic review and meta-analysis. Methods: Two independent reviewers performed an extended systematic search in databases of Medline, EMBASE, ISI Web of Knowledge, Scopus, Cochrane Library, and ProQuest. Data were extract and quality of the relevant studies were assessed. The number of true positive, false positive, true negative and false negative cases were extracted and screening performance characteristics of two imaging techniques were calculated using a mixed-effects binary regression model. Results: Data from 12 studies were extracted and included in the meta-analysis (7361 patients, 77.1% male). Pooled sensitivity and specificity of ultrasonography in detection of hemothorax were 0.67 (95% CI: 0.41-0.86; I2= 68.38, p<0.001) and 0.99 (95% CI: 0.95-1.0; I2= 88.16, p<0.001), respectively. These measures for radiography were 0.54 (95% CI: 0.33-0.75; I2= 92.85, p<0.001) and 0.99 (95% CI: 0.94-1.0; I2= 99.22, p<0.001), respectively. Subgroup analysis found operator of the ultrasonography device, frequency of the transducer and sample size to be important sources of heterogeneity of included studies. Conclusion: The results of this study showed that although the sensitivity of ultrasonography in detection of hemothorax is relatively higher than radiography, but it is still at a moderate level (0.67%). The specificity of both imaging modalities were found to be at an excellent level in this regard. The screening characteristics of ultrasonography was found to be influenced of the operator and frequency of transducer.
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spelling doaj.art-1ce8870556f148dbb8cbee60c642bfaf2022-12-22T01:06:43ZengShahid Beheshti University of Medical SciencesArchives of Academic Emergency Medicine2645-49042018-12-014310.22037/aaem.v4i3.234Application of Ultrasonography and Radiography in Detection of Hemothorax: a Systematic Review and Meta-AnalysisVafa Rahimi-Movaghar0Mahmoud Yousefifard1Parisa Ghelichkhani2Masoud Baikpour3Abbas Tafakhori4Hadi Asady5Gholamreza Faridaalaee6Mostafa Hosseini7Saeed Safari8Sina Trauma and Surgery Research Center, Tehran University Medical Sciences, Tehran, IranPhysiologist, Physiology Department, School of Medicine, Tehran University of Medical SciencesDepartment of Intensive Care Nursing, School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, IranDepartment of Medicine, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran1. Department of Neurology, School of Medicine, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran. 2. Iranian Center of Neurological Research, Tehran University of Medical Sciences, Tehran, Iran.Department of Occupational Health Engineering, Faculty of Public Health, Tehran University of Medical Sciences, Tehran, IranDepartment of Emergency Medicine, Maragheh University of Medical Sciences, Maragheh, IranDepartment of Epidemiology and Biostatistics, school of Public Health, Tehran University of Medical Sciences, Tehran, IranDepartment of Emergency Medicine, Shohedaye Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, IranIntroduction: Hemothorax is one of the most prevalent injuries caused by thoracic traumas. Early detection and treatment of this injury is of utmost importance in prognosis of the patient, but there are still controversial debates on the diagnostic value of imaging techniques in detection of hemothorax. Therefore, the present study aimed to evaluate the diagnostic value of chest ultrasonography and radiography in detection of hemothorax through a systematic review and meta-analysis. Methods: Two independent reviewers performed an extended systematic search in databases of Medline, EMBASE, ISI Web of Knowledge, Scopus, Cochrane Library, and ProQuest. Data were extract and quality of the relevant studies were assessed. The number of true positive, false positive, true negative and false negative cases were extracted and screening performance characteristics of two imaging techniques were calculated using a mixed-effects binary regression model. Results: Data from 12 studies were extracted and included in the meta-analysis (7361 patients, 77.1% male). Pooled sensitivity and specificity of ultrasonography in detection of hemothorax were 0.67 (95% CI: 0.41-0.86; I2= 68.38, p<0.001) and 0.99 (95% CI: 0.95-1.0; I2= 88.16, p<0.001), respectively. These measures for radiography were 0.54 (95% CI: 0.33-0.75; I2= 92.85, p<0.001) and 0.99 (95% CI: 0.94-1.0; I2= 99.22, p<0.001), respectively. Subgroup analysis found operator of the ultrasonography device, frequency of the transducer and sample size to be important sources of heterogeneity of included studies. Conclusion: The results of this study showed that although the sensitivity of ultrasonography in detection of hemothorax is relatively higher than radiography, but it is still at a moderate level (0.67%). The specificity of both imaging modalities were found to be at an excellent level in this regard. The screening characteristics of ultrasonography was found to be influenced of the operator and frequency of transducer.https://journals.sbmu.ac.ir/aaem/index.php/AAEM/article/view/234Hemothoraxultrasonographyradiographydiagnostic testsroutine
spellingShingle Vafa Rahimi-Movaghar
Mahmoud Yousefifard
Parisa Ghelichkhani
Masoud Baikpour
Abbas Tafakhori
Hadi Asady
Gholamreza Faridaalaee
Mostafa Hosseini
Saeed Safari
Application of Ultrasonography and Radiography in Detection of Hemothorax: a Systematic Review and Meta-Analysis
Archives of Academic Emergency Medicine
Hemothorax
ultrasonography
radiography
diagnostic tests
routine
title Application of Ultrasonography and Radiography in Detection of Hemothorax: a Systematic Review and Meta-Analysis
title_full Application of Ultrasonography and Radiography in Detection of Hemothorax: a Systematic Review and Meta-Analysis
title_fullStr Application of Ultrasonography and Radiography in Detection of Hemothorax: a Systematic Review and Meta-Analysis
title_full_unstemmed Application of Ultrasonography and Radiography in Detection of Hemothorax: a Systematic Review and Meta-Analysis
title_short Application of Ultrasonography and Radiography in Detection of Hemothorax: a Systematic Review and Meta-Analysis
title_sort application of ultrasonography and radiography in detection of hemothorax a systematic review and meta analysis
topic Hemothorax
ultrasonography
radiography
diagnostic tests
routine
url https://journals.sbmu.ac.ir/aaem/index.php/AAEM/article/view/234
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