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Updated: Jul 18, 2025
Point-of-Care Lung Ultrasound in Adults: Image Acquisition
Published on: March 3, 2023
Point-of-Care Ultrasound versus Chest X-Ray for Determining Lung Expansion Based on Rib Count in High-Frequency
Ozlem Sahin1, Derya Colak1, Sevinc Tasar2
1Division of Neonatology, University of Health Sciences, Umraniye Training and Research Hospital, Istanbul, Turkey.
Introduction:
Chest X-ray (CXR) is the most prevalent method for evaluating lung expansion in high-frequency oscillatory ventilation (HFOV). The purpose of this study was to compare the accuracy of chest radiography with point-of-care ultrasound (POCUS) in determining lung expansion.
Methods:
This prospective study included newborns who required HFOV and were monitored in a neonatal intensive care unit. A single neonatologist assessed lung expansion with CXR and POCUS to measure the costal level of the right hemidiaphragm and compared the results.
Results:
A neonatologist performed 55 measurements in 28 newborns with a gestational age of 32 (23.2-39.4) weeks, followed by HFOV. The rib counts obtained from anterior chest ultrasonography and posterior CXR showed a statistically high concordance (r = 0.913, p < 0.001).
Conclusion:
Lung ultrasonography is a reliable method for the evaluation of lung expansion based on rib count in patients with HFOV.
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