Atrial septal defect chest x ray

Atrial Septal Defect Microchapters
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Ostium Secundum Atrial Septal Defect
Ostium Primum Atrial Septal Defect
Sinus Venosus Atrial Septal Defect
Coronary Sinus
Patent Foramen Ovale
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-In-Chief: Priyamvada Singh, M.B.B.S. [2]; Cafer Zorkun, M.D., Ph.D. [3]; Assistant Editor(s)-In-Chief: Kristin Feeney, B.S. [4]

Overview

Chest x rays may be used as a diagnostic tool in the evaluation of an atrial septal defect. As a modality, chest x rays can be limited in diagnostic imaging quality and may often be elected to be used in conjunction with other diagnostic modalities. The chest x-ray may show features suggesting cardiomegaly (right ventricular and right atrial enlargement), prominent pulmonary artery segment, and increased pulmonary vascular markings.

Chest X Ray

Common Findings

Findings on anteroposterior view of chest X-ray that may be seen in atrial septal defect are -

1) Prominent pulmonary artery, increased pulmonary vascular markings.

2) Cardiomegaly due to right atrial and ventricular enlargement.

3) Triangular appearance of the heart

• Results from enlargement of pulmonary arteries preventing the ascending and transverse aorta from forming normal heart borders

4) Scimitar sign,

• A vertical, modestly curved, density in the right-side of the pericardium, may be visible
• Commonly associated with the sinus venosus atrial septal defect
• Results from the point of insertion of the pulmonary vein into the inferior vena cava
• May cause abnormal densities within the chest x ray

5) Dilatation of the superior vena cava can be seen in sinus venosus

Less Common Findings

• Normal appearance of heart vasculature
• Left heart enlargement/left atrial enlargement
• Pulmonary edema
• Pulmonary venous hypertension

Imaging

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  Enlarged right atrial border and mild cardiomegaly.

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  Lateral view

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  Post repair. Enlarged right atrial border and mild cardiomegaly.

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  Post repair. Lateral view.

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  ASD. Another patient. Enlarged right atrial border and advanced cardiomegaly.