Performance analysis of the transcatheter aortic valve implantation on blood flow hemodynamics: An optical imaging‐based in vitro study

Gülan Utku; Appa Harish; Corso Pascal; Templin Christian; Bezuidenhout Deon; Zilla Peter; Duru Firat; Holzner Markus

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Performance analysis of the transcatheter aortic valve implantation on blood flow hemodynamics: An optical imaging‐based in vitro study

机译：经沟管主动脉瓣植入对血流血流动力学的性能分析：基于光学成像的体外研究

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Abstract Cardiac implants may have a strong influence on the hemodynamics of the circulatory system. In this study, we aimed at investigating the impact of transcatheter aortic valve implantation (TAVI) devices on blood flow patterns that develop in the ascending aorta under physiological flow conditions in vitro. For this purpose, a noninvasive optical measurement tool, three‐dimensional particle tracking velocimetry (3D‐PTV), was used in a realistic compliant silicone aortic model. The performance and the influence of two TAVIs and one surgical valve on the aortic flow were investigated. Our results showed that valve design and materials may have a distinct influence on relevant hemodynamic properties, namely kinetic energy, production of turbulence, and shear stresses in the ascending aorta. All properties varied considerably between the different valve models. We found that the total aortic regurgitation composed of the closing volume, transvalvular and paravalvular leakages varied for the three valves investigated. Furthermore, peak mean kinetic energy (MKE) ranged from 61 to 116 J/m 3 , whereas peak turbulent kinetic energy (TKE) ranged from 23 to 36 J/m 3 . The analysis of shear showed that all the three studied devices had minimal overall risk for thrombus formation. We conclude that the characteristics and material designs of TAVI devices have strong influences on the hemodynamics in the ascending aorta.

机译：抽象的心脏植入物可能对循环系统的血流动力学产生强烈影响。在这项研究中，我们旨在研究经截觉管主动脉瓣植入（TAVI）器件对在体外生理流动条件下在升高的主动脉中开发的血流模式的影响。为此目的，非侵入式光学测量工具，三维粒子跟踪速度（3D-PTV）用于逼真的柔性硅氧烷主动脉模型。研究了两个Tavis和一个手术瓣膜对主动脉流动的性能和影响。我们的研究结果表明，阀门设计和材料可能对相关血液动力学性质具有不同的影响，即动能，湍流的动力，湍流和升压中的剪切应力。所有属性在不同的阀门型号之间变化很大。我们发现，对于所研究的三个阀门，由闭合体积，经变性和瓣膜泄漏泄漏组成的总主动脉反流。此外，峰值平均动能（MKE）范围为61至116J / m 3，而峰值湍流动能（TKE）的范围为23至36J / m 3。剪切分析表明，所有三种研究的装置对血栓形成的总体风险最小。我们得出结论，Tavi器件的特性和材料设计对升高主动脉血流动力学的影响很大。

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《Artificial Organs》 |2019年第10期|共12页
作者
Gülan Utku; Appa Harish; Corso Pascal; Templin Christian; Bezuidenhout Deon; Zilla Peter; Duru Firat; Holzner Markus;
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Institute for Environmental EngineeringSwiss Federal Institute of Technology ZurichZurich;

Strait Access TechnologiesUniversity of Cape TownObservatory South Africa;

Institute for Environmental EngineeringSwiss Federal Institute of Technology ZurichZurich;

Department of CardiologyUniversity Heart CenterZurich Switzerland;

Strait Access TechnologiesUniversity of Cape TownObservatory South Africa;

Strait Access TechnologiesUniversity of Cape TownObservatory South Africa;

Department of CardiologyUniversity Heart CenterZurich Switzerland;

Institute for Environmental EngineeringSwiss Federal Institute of Technology ZurichZurich;

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正文语种 eng
中图分类器官移植术;
关键词
aorta; hemodynamics; particle tracking velocimetry; transcatheter aortic valve implantation; turbulence;

机译：主动脉;血流动力学;粒子跟踪速度;经导管主动脉瓣植入;湍流;

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专利

1. Performance analysis of the transcatheter aortic valve implantation on blood flow hemodynamics: An optical imaging‐based in vitro study [J] . Gülan Utku, Appa Harish, Corso Pascal, Artificial Organs . 2019,第10期

机译：经沟管主动脉瓣植入对血流血流动力学的性能分析：基于光学成像的体外研究
2. In vitro study of coronary flow occlusion in transcatheter aortic valve implantation [J] . Zheng-Fu He, Wei-Ming Zhang, George Lutter, Journal of Thoracic Disease . 2014,第12期

机译：经导管主动脉瓣植入术中冠状动脉血流闭塞的体外研究
3. Cost-utility of transcatheter aortic valve implantation for inoperable patients with severe aortic stenosis treated by medical management: a UK cost-utility analysis based on patient-level data from the ADVANCE study [J] . Amie Padhiar, Axel Linke, Corrado Tamburino, Open Heart . 2014,第1期

机译：经医疗管理对无法手术的严重主动脉瓣狭窄患者行经导管主动脉瓣植入术的成本-效用：基于ADVANCE研究中患者水平数据的英国成本-效用分析
4. HEMODYNAMIC AND STRUCTURAL IMPLICATIONS OF ASYMMETRIC DEPLOYMENT OF TRANSCATHETER AORTIC VALVES - AN IN VITRO STUDY [C] . Paul S. Gunning, Neelakantan Saikrishnan, Ajit P. Yoganathan, ASME bioengineering conference . 2014

机译：导管主动脉瓣不对称部署的血流动力学和结构意义-体外研究。
5. Anatomic Predictors of New-Permanent Pacemaker Implantation after Sapien 3 Transcatheter Aortic Valve Replacement [D] . Okoli, Kimberly. 2020

机译：SAPIEN 3经截觉管主动脉瓣膜置换后新的永久起搏器植入的解剖预测因子
6. In vitro study of coronary flow occlusion in transcatheter aortic valve implantation [O] . Zheng-Fu He, Wei-Ming Zhang, George Lutter, 2014

机译：经导管主动脉瓣植入术中冠状动脉血流闭塞的体外研究
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Performance analysis of the transcatheter aortic valve implantation on blood flow hemodynamics: An optical imaging‐based in vitro study

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