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Abstract

A patient presenting with fever, hypoxia, productive cough, and leukocytosis can be diagnosed with pneumonia without any imaging findings. However, we often rely on X-ray and computed tomography (CT) imaging to support the clinical diagnosis. Ultrasound is an effective imaging modality for identifying pneumonia without delay and radiation risks.1,2 A meta-analysis by Ye et al. in 2015 found that ultrasound diagnosis of pneumonia had a pooled sensitivity of 0.95 and a pooled specificity of 0.9, which is superior to X-ray imaging which had a pooled sensitivity of 0.77 and a similar pooled specificity of 0.9.3 This study used CT imaging as a gold standard for comparison.

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