Differentiating an ASD from a VSD using a chest X-ray is by detection of?
A. Enlargement of pulmonary artery
B. Enlarged left atrium
C. Dilated aorta
D. Pulmonary plethora
Correct answer : B. Enlarged left atrium
Chest X-ray of a patient with atrial septal defect showing an enlarged right pulmonary artery (RPA), main pulmonary artery (MPA) and right atrium (RA). End-on view of an enlarged pulmonary vessel is also seen.
Differentiating an ASD from a VSD using a chest X-ray
- Left atrium is not dilated in a case of atrial septal defect (ASD).
- It is dilated in patients with ventricular septal defect. (VSD).
- Pulmonary plethora is present in both ASD and VSD.
- Pulmonary artery is dilated in both.
- Size of the aorta is normal in both.