Ebstein's anomaly of the tricuspid valve CT

and Claudia P. Hochberg, M.D. [mailto:chochber@bidmc.harvard.edu]

Associate Editor-In-Chief: }; Keri Shafer, M.D. [mailto:kshafer@bidmc.harvard.edu] Priyamvada Singh, MBBS mailto:psingh@perfuse.org

Assistant Editor-In-Chief: Kristin Feeney, B.S. mailto:kfeeney@perfuse.org

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

Computed tomography
Computed tomography (CT) can be used as a diagnostic modality in congenital heart diseases.

'''Advantages


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

Disadvantage


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

Inferior displacement of tricuspid valve leaflets with enlargement of the right atrium and enlargement and dysfunction of the right ventricle.

Cardiac catheterization and hemodynamics
a) RA pressure usually not increased due to the fact that the RA is enlarged and compliant.

b) Normal RV pressures unless significant TR is present.

c) PA pressures are normal or slightly decreased due to TR and a large right-to-left shunt.

d) An ASD may be present