Total anomalous pulmonary venous connection MRI

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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

Magnetic resonance imaging can be helpful as a diagnostic tool in conditions where the echocardiographic findings are inconclusive.

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) can be used as a diagnostic modality in congenital heart diseases. MRI serves to confirm the diagnosis of TAPVC.

Advantages

• It can be used in cases where echocardiographic results are inconclusive.
• Helps in measuring heart volumes, blood flow and ventricular wall thickness.
• The magnetic resonance angiography helps in better visualization of heart vasculature.
• Phase velocity mapping helps in measuring the ratio of pulmonary to systemic blood flow (Qp:Qs).

Disadvantages

For successful MRI procedure breath holding is required, which is sometimes difficult to achieve with small kids. Due to this, the procedure is done under general anesthesia in children.