- Poster presentation
- Open Access
Studying effect of respiration on total cavopulmonary connection flows using real-time cardiac magnetic resonance
© Khiabani et al.; licensee BioMed Central Ltd. 2014
- Published: 16 January 2014
- Cardiac Magnetic Resonance
- Pulsatility Index
- Breath Hold
- Free Breathing
- Fontan Patient
Accurate measurement of vessel flows in the Total Cavopulmonary Connection (TCPC) can lead to better estimation of hemodynamics, which has been related to clinical outcomes in single ventricle patients. CMR is usually acquired in breath held conditions; however, respiratory effects can be considerable since the blood is passively routed to the lungs in Fontan patients. Here, we assessed the effect of respiration on caval and aortic flows using real time CMR images.
A novel technique of measuring flow and tracking respiration with the same slice plane was presented, obviating the need for respiratory bellows. Using this technique, we demonstrated that respiratory effects dominate the venous flow but have little effect on systemic arterial flow in Fontan patients. However, the effect of breath holding on mean flows is fairly small, supporting the routine use of breath holding in assessing flows in single ventricle patients.
This study was supported by the National Heart, Lung, and Blood Institute Grants HL67622, HL098252, and HL089647.
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.