TEACHING RESOURCE M0034
Lung ultrasound: B-lines
Movie 3 from “Lung Ultrasound: The Essentials”, illustrating B-lines in a pulmonary oedema context.
Marini et al. · RSNA
MICA
An enlarged cardiac silhouette requires projection-specific interpretation; AP may overestimate size.

James Heilman, MD, Cardiomegally.PNG, CC BY-SA 3.0, Wikimedia Commons; conversion WebP et réduction proportionnelle.
James Heilman, MD
View the original sourceTeaching notes based on the cited sources.
Learning objective
Observe and describe the document, then compare your interpretation with the atlas sheet.
Points to observe
- On an inspiratory PA film, divide maximum cardiac width by maximum internal thoracic width.
Open observation mode