Total anomalous pulmonary venous connection CT

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Cafer Zorkun, M.D., Ph.D. [2]; Keri Shafer, M.D. [3]; Priyamvada Singh, MBBS [4]; Assistant Editor-In-Chief: Kristin Feeney, B.S. [5]

Overview

Computed tomography can be helpful as a diagnostic tool in conditions where the echocardiographic findings are inconclusive.

CT

• The radiologic appearance of TAPVC varies according to the site of abnormal venous drainage and whether the flow is obstructed.
• The structure in which the anomalous vein terminates appears dilated; termination at the level of the coronary sinus, superior vena cava, or azygos vein leads to dilatation of that structure and produces characteristic abnormalities in the imaging appearance.
• Computed tomography (CT) can be used as a diagnostic modality in congenital heart diseases.

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Advantages

• Provides additional anatomic details compared to echocardiography
• It is done faster compared to MRI, thus avoiding the need for anesthesia in small children.

Disadvantages

• Costly
• Radiation can have long terms side-effect on growing children.

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