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Citation:
Carroll D, Double lung point sign (Ultrasound). Reference article, Radiopaedia.org (Accessed on 19 Apr 2024) https://doi.org/10.53347/rID-61537
The double lung point sign refers to a sharp boundary found between relatively aerated superior lung fields and coalescent "B‐lines" (representing interstitial edema) in the basal lung fields, with a reported sensitivity of 45.6%-76.7% and a specificity of 94.8%-100% 1,3 in diagnosing transient tachypnea of the newborn.
The sign derives its name from the supposed appearance of two sonographically different lungs in apposition within one hemithorax.
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1. Bob Jarman. Emergency Point-of-Care Ultrasound. (2017) ISBN: 9780470657577
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2. Vergine M, Copetti R, Brusa G, Cattarossi L. Lung ultrasound accuracy in respiratory distress syndrome and transient tachypnea of the newborn. (2014) Neonatology. 106 (2): 87-93. doi:10.1159/000358227 - Pubmed
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3. Liu J, Chen XX, Li XW, Chen SW, Wang Y, Fu W. Lung Ultrasonography to Diagnose Transient Tachypnea of the Newborn. (2016) Chest. 149 (5): 1269-75. doi:10.1016/j.chest.2015.12.024 - Pubmed
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4. Copetti R, Cattarossi L. The 'double lung point': an ultrasound sign diagnostic of transient tachypnea of the newborn. (2007) Neonatology. 91 (3): 203-9. doi:10.1159/000097454 - Pubmed
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5. Liu J, Wang Y, Fu W, Yang CS, Huang JJ. Diagnosis of neonatal transient tachypnea and its differentiation from respiratory distress syndrome using lung ultrasound. (2014) Medicine. 93 (27): e197. doi:10.1097/MD.0000000000000197 - Pubmed
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