Diagnostic Accuracy of Chest Ultrasonography versus Chest X-ray in Detecting Community-Acquired Pneumonia in Children: A Prospective Observational Study.
DOI:
https://doi.org/10.51168/sjhrafrica.v6i6.1865Keywords:
Community-acquired pneumonia, chest ultrasonography, lung ultrasound, chest X-ray, children, diagnosis, radiation-free imagingAbstract
Background:
Pneumonia remains a leading cause of childhood morbidity and mortality worldwide. Chest X-ray (CXR) is a conventional imaging modality for diagnosis, but it has limitations, including radiation exposure and variable interpretation. Lung ultrasonography (LUS) has emerged as a radiation-free, point-of-care diagnostic alternative. This study evaluated the diagnostic performance of LUS in detecting community-acquired pneumonia (CAP) in children and compared it with CXR.
Objectives:
To assess the role of chest ultrasonography in diagnosing community-acquired pneumonia in children and to compare its diagnostic yield with that of chest X-ray.
Methods:
A hospital-based prospective observational study was conducted from January to December 2019 at a tertiary pediatric center. Children aged 2 months to 5 years with clinical features of CAP were included in the study. Each child underwent CXR and LUS. Findings from both modalities were compared to assess their diagnostic accuracy.
Results:
A total of 159 children were included, with a mean age of 16.9 ± 16.58 months. Chest ultrasound detected pneumonia in 134 (84.3%) cases, whereas CXR detected it in 113 (71%) cases (p < 0.0001). Subpleural consolidation (38.4%) and B-line with pleural line abnormalities (27%) were common LUS findings. CXR showed consolidation in 34.6% and perihilar infiltrates in 27.7% of cases. LUS detected pneumonia in 26 cases missed by CXR, while CXR detected pneumonia in 5 cases missed by LUS.
Conclusion:
Lung ultrasonography is a simple, radiation-free, and reliable imaging modality with higher detection rates than chest X-ray in pediatric pneumonia. It can be used effectively for both diagnosis and follow-up, especially in resource-limited settings.
Recommendations:
Lung ultrasound should be integrated into pediatric emergency protocols as a first-line imaging tool for suspected pneumonia in children.
References
Balk DS, Lee C, Schafer J, Welwarth J, Hardin J, Novack V, Yarza S, Hoffmann B. Lung ultrasound compared to chest X-ray for diagnosis of pediatric pneumonia: A meta-analysis. Pediatr Pulmonol. 2018 Aug;53(8):1130-1139. doi: 10.1002/ppul.24020. Epub 2018 Apr 26. PMID: 29696826. https://doi.org/10.1002/ppul.24020
Dong Z, Shen C, Tang J, Wang B, Liao H. Accuracy of Thoracic Ultrasonography for the Diagnosis of Pediatric Pneumonia: A Systematic Review and Meta-Analysis. Diagnostics (Basel). 2023 Nov 16;13(22):3457. doi: 10.3390/diagnostics13223457. PMID: 37998593; PMCID: PMC10670251. https://doi.org/10.3390/diagnostics13223457
Wang L, Song W, Wang Y, Han J, Lv K. Lung ultrasonography versus chest radiography for the diagnosis of pediatric community-acquired pneumonia in the emergency department: a meta-analysis. J Thorac Dis. 2019 Dec;11(12):5107-5114. doi: 10.21037/jtd.2019.11.62. PMID: 32030227; PMCID: PMC6987984. https://doi.org/10.21037/jtd.2019.11.62
Taghizadieh A, Ala A, Rahmani F, Nadi A. Diagnostic Accuracy of Chest X-Ray and Ultrasonography in Detection of Community Acquired Pneumonia; a Brief Report. Emerg (Tehran). 2015 Summer;3(3):114-6. PMID: 26495396; PMCID: PMC4608340.
Reissig A, Copetti R, Mathis G, Mempel C, Schuler A, Zechner P, Aliberti S, Neumann R, Kroegel C, Hoyer H. Lung ultrasound in the diagnosis and follow-up of community-acquired pneumonia: a prospective, multicenter, diagnostic accuracy study. Chest. 2012 Oct;142(4):965-972. doi: 10.1378/chest 12-0364. PMID: 22700780. https://doi.org/10.1378/chest.12-0364
Claes AS, Clapuyt P, Menten R, Michoux N, Dumitriu D. Performance of chest ultrasound in pediatric pneumonia. Eur J Radiol. 2017 Mar;88:82-87. doi: 10.1016/j.ejrad.2016.12.032. Epub 2016 Dec 29. PMID: 28189214. https://doi.org/10.1016/j.ejrad.2016.12.032
Pereda MA, Chavez MA, Hooper-Miele CC, Gilman RH, Steinhoff MC, Ellington LE, Gross M, Price C, Tielsch JM, Checkley W. Lung ultrasound for the diagnosis of pneumonia in children: a meta-analysis. Pediatrics. 2015 Apr;135(4):714-22. doi: 10.1542/peds 2014-2833. Epub 2015 Mar 16. PMID: 25780071; PMCID: PMC9923609. https://doi.org/10.1542/peds.2014-2833
8.Stadler JAM, Andronikou S, Zar HJ. Lung ultrasound for the diagnosis of community-acquired pneumonia in children. Pediatr Radiol. 2017 Oct;47(11):1412-1419. Doi: 10.1007/s00247-017-3910-1. Epub 2017 Sep 21. PMID: 29043420; PMCID: PMC5608773. https://doi.org/10.1007/s00247-017-3910-1
Yan JH, Yu N, Wang YH, Gao YB, Pan L. Lung ultrasound vs chest radiography in the diagnosis of children's pneumonia: Systematic evidence. Medicine (Baltimore). 2020 Dec 11;99(50):e23671. doi: 10.1097/MD.0000000000023671. PMID: 33327356; PMCID: PMC7738074. https://doi.org/10.1097/MD.0000000000023671
Yan C, Hui R, Lijuan Z, Zhou Y. Lung ultrasound vs. chest X-ray in children with suspected pneumonia confirmed by chest computed tomography: A retrospective cohort study. Exp Ther Med. 2020 Feb;19(2):1363-1369. doi: 10.3892/etm.2019.8333. Epub 2019 Dec 16. PMID: 32010310; PMCID: PMC6966229.
Copetti R, Cattarossi L. Ultrasound diagnosis of pneumonia in children. Radiol Med. 2008 Mar;113(2):190-8. English, Italian. Doi: 10.1007/s11547-008-0247-8. Epub 2008 Apr 2. PMID: 18386121. https://doi.org/10.1007/s11547-008-0247-8
Urbankowska E, Krenke K, Drobczyński Ł, Korczyński P, Urbankowski T, Krawiec M, Kraj G, Brzewski M, Kulus M. Lung ultrasound in the diagnosis and monitoring of community-acquired pneumonia in children. Respir Med. 2015 Sep;109(9):1207-12. Doi: 10.1016/j.rmed.2015.06.011. Epub 2015 Jun 23. PMID: 26138897. https://doi.org/10.1016/j.rmed.2015.06.011
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Copyright (c) 2025 Dr. Navya K. U, Dr. Manu Srinivas H, Dr. Naveenkumar B, Dr. Rashmi Devaraj, Dr. Rajashekar Murthy G. R

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