- Oral presentation
- Open Access
Four dimensional pulmonary flow evaluation in adolescent patients after surgical and percutaneous pulmonary valve implantation
© Romeih et al.; licensee BioMed Central Ltd. 2014
- Published: 16 January 2014
- Right Ventricle
- Wall Shear Rate
- Pulmonary Flow
- Vortex Size
- Pulmonary Artery Diameter
In patients with congenital heart defects, restoration of the connection between the right ventricle (RV) and the pulmonary artery (PA) by surgical or percutaneous valved conduit implantation is a common procedure. Flow characteristics in such conduits are complex, therefore the aim of this study was demonstrating the potential application of 4D MRI flow for the comprehensive assessment of pulmonary flow patterns after surgical and percutaneous RV-PA valved conduit implantation.
4D MRI flow revealed that pulmonary flow patterns after percutaneous pulmonary valve implantation are markedly different from those after the surgical implantation. Eccentric pulmonary flow is associated with vortex appearance, dilatation of RV-PA conduit, and asymmetrical elevated WSR, which is related to the direction of pulmonary flow jet. This could place this group at risk for future adverse events. Longer follow up studies are required to determine the implications of such knowledge for prognosis and therapy.
This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.