4.5 Article

Necrotizing pneumonia in children: Chest computed tomography vs. lung ultrasound

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FRONTIERS IN PEDIATRICS
卷 10, 期 -, 页码 -

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FRONTIERS MEDIA SA
DOI: 10.3389/fped.2022.898402

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lung ultrasonography (LUS); pediatric pulmonology; chest ultrasound; necrotizing pneumonia; chest computed tomography (CT); children

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This study compares the performance of lung ultrasound (LUS) and computed tomography (CT) in diagnosing necrotizing pneumonia (NP). The results show that LUS is as effective as CT in identifying radiological signs of NP, suggesting that LUS could replace CT for diagnosing NP.
BackgroundThe utilization of contrast-enhanced computed tomography (CT) of the chest for the diagnosis of necrotizing pneumonia (NP), a complication of community-acquired pneumonia, is controversial because of the inherent ionizing radiation involved. Over the past few years, the growing availability of bedside Lung Ultrasound (LUS) devices has led to increased use of this nonionizing imaging method for diagnosing thoracic pathology, including pneumonia. ObjectiveThe objectives of this study were as follows: first, to compare the performance of LUS vs. CT in the identification of certain radiological signs of NP, and second, to determine whether LUS could replace CT in the diagnosis of NP. Materials and methodsWe compared retrospectively the CT and LUS images of 41 patients between 2005 and 2018 in whom at least one contrast-injected chest CT scan and one LUS had been undertaken fewer than 7 days apart. ResultsPleural effusions were demonstrated almost systematically (100% on CT vs. 95.8% on LUS). Visualization of septations in pleural effusions was clearly superior on LUS (20.4% on CT vs 62.5% on LUS). Concerning the detection of necrosis, we observed a strong correlation between LUS and the gold-standard CT (95.8% on LUS vs. 93.7% on CT). Parenchymal cavities were more easily detected on CT than on LUS (79.1 vs. 35.4%). ConclusionLUS has shown to be as effective as CT in the diagnosis of NP. The use of CT in patients with NP could be limited to the detection of complications such as bronchopleural fistulae in unfavorably evolving diseases.

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