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2016 ; 8
(10
): 2822-2831
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Effectiveness of lung ultrasonography for diagnosis of pneumonia in adults: a
systematic review and meta-analysis
#MMPMID27867558
Xia Y
; Ying Y
; Wang S
; Li W
; Shen H
J Thorac Dis
2016[Oct]; 8
(10
): 2822-2831
PMID27867558
show ga
BACKGROUND: Pneumonia is usually presented as a forgotten killer, and an early
diagnosis could largely improve the prognostic outcomes. Lung ultrasound (LUS)
has been universally applied in evaluating multiple pulmonary diseases including
pneumonia. However, the diagnosis accuracy of LUS for pneumonia in adults is
still uncertain. Hence, we performed a systematic review of the current
literature to assess the diagnosis accuracy of LUS for pneumonia in adults.
METHODS: PubMed and EMBASE were searched for clinical trials that assessed the
detection accuracy of LUS for pneumonia in adult patients. We extracted
descriptive and quantitative information from eligible studies that met strict
inclusion criteria and calculated pooled sensitivity, specificity and pooled
diagnostic likelihood ratios (LR). Summary receiver operating characteristic
(sROC) curve was used to assess the overall performance of LUS-based assays.
RESULTS: We reviewed 1,072 articles and selected 38 for detailed review. 14
articles containing 1,911 participants met all inclusion criteria and were
included in the final analysis. LUS exhibited a pooled sensitivity of 0.904
(0.884-0.921), specificity of 0.884 (0.861-0.904), positive LR of 6.6 (3.7-11.7),
negative LR of 0.08 (0.04-0.19) and the area under curve (AUC) was 0.9611.
Interestingly, when CT alone, CT combined with clinical presentations, and
microbiology was set as the gold standard of pneumonia respectively, LUS
demonstrated a pooled sensitivity of 90.9%, 95.0%, 53.3%, and a pooled
specificity of 89.7%, 91.3% and 67.9%. In extension, we compared the diagnostic
efficiency of LUS for pneumonia with chest X-ray (CXR) in 1,343 patients. The AUC
for LUS and CXR was 0.972 and 0.867 respectively and the Z statistic of the two
sROC curves was 2.31. CONCLUSIONS: Our study indicated that LUS is a robust
diagnostic tool for pneumonia with high accuracy. Utilization of LUS would
facilitate the estimation of pneumonia at bedside.