4-Dimensional Velocity Mapping Cardiac Magnetic Resonance of Extracardiac Bypass for Aortic Coarctation Repair

Lamia Ait Ali; Nicola Martini; Chrysanthos Grigoratos; Daniele Della Latta; Dante Chiappino; Pierluigi Festa

doi:10.1016/j.jaccas.2019.05.021

4-Dimensional Velocity Mapping Cardiac Magnetic Resonance of Extracardiac Bypass for Aortic Coarctation Repair

JACC Case Rep. 2019 Jun 4;1(1):17-20. doi: 10.1016/j.jaccas.2019.05.021. eCollection 2019 Jun.

Authors

Lamia Ait Ali^{1

2}, Nicola Martini², Chrysanthos Grigoratos^{2

3}, Daniele Della Latta², Dante Chiappino², Pierluigi Festa²

Affiliations

¹ Institute of Clinical Physiology, National Research Council, Massa, Italy.
² Gabriele Monasterio Tuscany Foundation, Pisa and Massa, Italy.
³ Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy.

Abstract

This report describes a case of a young lady who, following extracardiac bypass between ascending and descending aorta for severe aortic coarctation, underwent 4-dimensional flow cardiac magnetic resonance, a technique that, by 3-dimensional flow assessment over time (4-dimensional), allows not only quantification of flows but also wall shear stress. In this case, increased wall shear stress was observed in the conduit's acute angle (kinking) as well as at the distal anastomosis level. The authors postulate that increased wall shear stress could help identify and risk stratify adult congenital heart disease who could develop vascular complications in the future. (Level of Difficulty: Intermediate.).

Keywords: 3D imaging; 4D flow CMR; aortic coarctation; cardiac magnetic resonance.

Publication types

Case Reports