The Fluid Dynamical Performance of the Carpentier-Edwards PERIMOUNT Magna Ease Prosthesis
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 v...
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Online Access: | http://dx.doi.org/10.1155/2018/5429594 |
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doaj-746723d05d97454d9e28dfc5ac76f4fa2020-11-25T01:03:38ZengHindawi LimitedBioMed Research International2314-61332314-61412018-01-01201810.1155/2018/54295945429594The Fluid Dynamical Performance of the Carpentier-Edwards PERIMOUNT Magna Ease ProsthesisPhilipp Marx0Wojciech Kowalczyk1Aydin Demircioglu2Gary Neil Brault3Hermann Wendt4Sharaf-Eldin Shehada5Konstantinos Tsagakis6Mohamed El Gabry7Heinz Jakob8Daniel Wendt9Department of Thoracic and Cardiovascular Surgery, West-German Heart and Vascular Center Essen, University Hospital Essen, Essen, GermanyChair of Mechanics and Robotics, University Duisburg-Essen, Campus Duisburg, Lotharstraße 1, 47057 Duisburg, GermanyInstitute for Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, GermanyDepartment of Thoracic and Cardiovascular Surgery, West-German Heart and Vascular Center Essen, University Hospital Essen, Essen, GermanyDepartment of Thoracic and Cardiovascular Surgery, West-German Heart and Vascular Center Essen, University Hospital Essen, Essen, GermanyDepartment of Thoracic and Cardiovascular Surgery, West-German Heart and Vascular Center Essen, University Hospital Essen, Essen, GermanyDepartment of Thoracic and Cardiovascular Surgery, West-German Heart and Vascular Center Essen, University Hospital Essen, Essen, GermanyDepartment of Thoracic and Cardiovascular Surgery, West-German Heart and Vascular Center Essen, University Hospital Essen, Essen, GermanyDepartment of Thoracic and Cardiovascular Surgery, West-German Heart and Vascular Center Essen, University Hospital Essen, Essen, GermanyDepartment of Thoracic and Cardiovascular Surgery, West-German Heart and Vascular Center Essen, University Hospital Essen, Essen, GermanyThe 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 3.03±0.1 and 2.87±0.13 m/s; maximal strain Exx, 913.81±173.25 and 896.15±88.16 1/s; maximal velocity gradient Eyx, 1203.14±221.84 1/s and 1200.81±61.83 1/s. The 25 mm size revealed significantly lower values: maximal velocity, 2.47±0.15 m/s; maximal strain Exx, 592.98±155.80 1/s; maximal velocity gradient Eyx, 823.71±38.64 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.http://dx.doi.org/10.1155/2018/5429594 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Philipp Marx Wojciech Kowalczyk Aydin Demircioglu Gary Neil Brault Hermann Wendt Sharaf-Eldin Shehada Konstantinos Tsagakis Mohamed El Gabry Heinz Jakob Daniel Wendt |
spellingShingle |
Philipp Marx Wojciech Kowalczyk Aydin Demircioglu Gary Neil Brault Hermann Wendt Sharaf-Eldin Shehada Konstantinos Tsagakis Mohamed El Gabry Heinz Jakob Daniel Wendt The Fluid Dynamical Performance of the Carpentier-Edwards PERIMOUNT Magna Ease Prosthesis BioMed Research International |
author_facet |
Philipp Marx Wojciech Kowalczyk Aydin Demircioglu Gary Neil Brault Hermann Wendt Sharaf-Eldin Shehada Konstantinos Tsagakis Mohamed El Gabry Heinz Jakob Daniel Wendt |
author_sort |
Philipp Marx |
title |
The Fluid Dynamical Performance of the Carpentier-Edwards PERIMOUNT Magna Ease Prosthesis |
title_short |
The Fluid Dynamical Performance of the Carpentier-Edwards PERIMOUNT Magna Ease Prosthesis |
title_full |
The Fluid Dynamical Performance of the Carpentier-Edwards PERIMOUNT Magna Ease Prosthesis |
title_fullStr |
The Fluid Dynamical Performance of the Carpentier-Edwards PERIMOUNT Magna Ease Prosthesis |
title_full_unstemmed |
The Fluid Dynamical Performance of the Carpentier-Edwards PERIMOUNT Magna Ease Prosthesis |
title_sort |
fluid dynamical performance of the carpentier-edwards perimount magna ease prosthesis |
publisher |
Hindawi Limited |
series |
BioMed Research International |
issn |
2314-6133 2314-6141 |
publishDate |
2018-01-01 |
description |
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 3.03±0.1 and 2.87±0.13 m/s; maximal strain Exx, 913.81±173.25 and 896.15±88.16 1/s; maximal velocity gradient Eyx, 1203.14±221.84 1/s and 1200.81±61.83 1/s. The 25 mm size revealed significantly lower values: maximal velocity, 2.47±0.15 m/s; maximal strain Exx, 592.98±155.80 1/s; maximal velocity gradient Eyx, 823.71±38.64 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. |
url |
http://dx.doi.org/10.1155/2018/5429594 |
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