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B-Lines on Pediatric Lung Sonography: Comparison With Computed Tomography.
Laura Martelius1, Henna Heldt2, Kirsi Lauerma2
1Department of Radiology, Hospital District of Helsinki and Uusimaa Medical Imaging Center, Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. laura.martelius@hus.fi.
Summary
Lung ultrasound B-lines correlate with lung parenchymal changes seen on CT scans in children. This non-invasive method can help assess lung conditions, with more B-lines indicating greater changes.
Area of Science:
- Pediatric Radiology
- Pulmonary Medicine
- Medical Imaging
Background:
- Sonographic B-lines are indicators of lung parenchyma alterations.
- Multiple B-lines are observed in various conditions like heart failure, interstitial lung disease, infections, and in neonates.
Purpose of the Study:
- To compare the quantity of B-lines detected via sonography with the extent of parenchymal changes visualized on computed tomography (CT) in pediatric patients.
Main Methods:
- 60 pediatric patients (≤18 years) underwent lung sonography before chest CT.
- B-lines were counted in 5 bilateral anterolateral intercostal spaces.
- CT findings were graded: absent, minimal, partial, or complete parenchymal changes.
Main Results:
- A consistent increase in B-line count was observed with increasing parenchymal changes on CT.
- Statistically significant differences in B-line counts were found across CT-defined parenchymal change groups (P < .01).
- No significant difference in B-line counts was noted between minimal and absent changes.
Conclusions:
- Sonographic B-line count demonstrates a correlation with the extent of lung parenchymal changes on CT in children.
- B-lines are associated with diverse parenchymal alterations.
- B-lines were more prevalent in patients with no CT changes when imaged under general anesthesia.
