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BioMed Research International
Volume 2018, Article ID 5429594, 9 pages
Research Article

The Fluid Dynamical Performance of the Carpentier-Edwards PERIMOUNT Magna Ease Prosthesis

1Department of Thoracic and Cardiovascular Surgery, West-German Heart and Vascular Center Essen, University Hospital Essen, Essen, Germany
2Chair of Mechanics and Robotics, University Duisburg-Essen, Campus Duisburg, Lotharstraße 1, 47057 Duisburg, Germany
3Institute for Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany

Correspondence should be addressed to Daniel Wendt; ed.nesse-ku@tdnew.leinad

Received 23 August 2017; Revised 22 November 2017; Accepted 28 November 2017; Published 10 January 2018

Academic Editor: Francesco Onorati

Copyright © 2018 Philipp Marx et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The aim of the present in vitro study was the evaluation of the fluid dynamical performance of the Carpentier-Edwards PERIMOUNT Magna Ease depending on the prosthetic size (21, 23, and 25 mm) and the cardiac output (3.6–6.4 L/min). A self-constructed flow channel in combination with particle image velocimetry (PIV) enabled precise results with high reproducibility, focus on maximal and local peek velocities, strain, and velocity gradients. These flow parameters allow insights into the generation of forces that act on blood cells and the aortic wall. The results showed that the 21 and 23 mm valves have a quite similar performance. Maximal velocities were and  m/s; maximal strain , and  1/s; maximal velocity gradient ,  1/s and  1/s. The 25 mm size revealed significantly lower values: maximal velocity,  m/s; maximal strain ,  1/s; maximal velocity gradient ,  1/s. In summary, the 25 mm Magna Ease was able to create a wider, more homogenous flow with lower peak velocities especially for higher flow rates. Despite the wider flow, the velocity values close to the aortic walls did not exceed the level of the smaller valves.