Total anomalous pulmonary venous connection MRI

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^[1].

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.

Image

Type IV (mixed) total anomalous pulmonary venous return.^[2]

References

↑ Choe YH, Lee HJ, Kim HS, Ko JK, Kim JE, Han JJ (1994). “MRI of total anomalous pulmonary venous connections”. J Comput Assist Tomogr. 18 (2): 243–9. PMID 8126275.
↑ Case courtesy of Dr Vincent Tatco, Radiopaedia.org, rID: 40893

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[pmid8126275-1] Choe YH, Lee HJ, Kim HS, Ko JK, Kim JE, Han JJ (1994). “MRI of total anomalous pulmonary venous connections”. J Comput Assist Tomogr. 18 (2): 243–9. PMID 8126275.

[2] Case courtesy of Dr Vincent Tatco, Radiopaedia.org, rID: 40893

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