Comparison between Doppler echocardiography and hot-film anemometry in measuring the turbulent shear stress downstream of artificial mitral valves: a methodological study
- Author:
- No author available
- Journal Title:
- Chinese Medical Journal
- Issue:
- 11
- DOI:
- 10.3760/cma.j.issn.0366-6999.20113080
- Key Word:
- porcine;mitral valve replacement;turbulent shear stress;Doppler echocardiography;hot-film anemometry
Abstract： Background Turbulent shear stress (TSS) plays an important role in the research of fluid dynamics of heart valves.This study aimed to perform a quantitative study of TSS downstream of porcine artificial mitral valves in order to verify the correlation of hot-film anemometry (HFA) and Doppler echocardiography combined with computer-aided image analysis for the detection of TSS.Methods A porcine model of mitral valve replacement was established.HFA and Doppler ultrasound techniques were used to directly and indirectly measure TSS-relevant parameters of the artificial mitral valve following different mitral valve replacements:different approaches were used to reserve the subvalvular apparatus of the mitral valve.A correlation analysis was then carried out.Results There was a significant correlation between the HFA and Doppler ultrasound combined with computer-aided image analysis of the TSS at the same time and at the same site.No significant difference was found in the TSS measured by the two methods.Conclusions Compared with HFA,Doppler echocardiography combined with computer-aided image analysis is a safe,non-invasive,and real-time method that enables accurate and quantitative detection of TSS downstream in vivo,objectively reflecting the flow field downstream of the artificial mitral valve.Doppler ultrasound combined with computeraided image analysis can be employed for quantitatively evaluating the downstream hemodynamic performance of the mitral valve.
- [1]张桂敏,石应康,唐红,等.二尖瓣狭窄下游湍流剪应力体内多普勒超声定量检测的方法学研究[J].2002,(1).
- [2]David TE,Reardon MJ.Mitral valve replacement with preservation of the subvalvular apparatus.[J].1999,14(2).
- [3]H. Nygaard,J. M. Hasenkam,E. M. Pedersen,etc.A new perivascular multi-element pulsed Doppler ultrasound system forin vivo studies of velocity fields and turbulent stresses in large vessels[J].1994,32(1).
- [4]M, Grigioni,C, Daniele,G, D'Avenio,etc.Laser Doppler anemometry study of bidimensional flows downstream of three 19 mm bileaflet valves in the mitral position, under kinematic similarity.[J].2000,28(2).
- [5]E G, Cape,M D, Vanauker,G, Sigfússon,etc.Potential role of mechanical stress in the etiology of pediatric heart disease: septal shear stress in subaortic stenosis.[J].1997,30(1).
- [6]Wasir H,Srivastava S,Kumar AS,etc.Mitral valve replacement with chordal preservation in a rheumatic population.[J].2001,10(1).
- [7]Girdhar G,Bluestein D.Biological effects of dynamic shear stress in cardiovascular pathologies and devices.[J].2008,5(2).
- [8]Zhaoming He,Liang Shi.Hemodynamics of the Mitral Valve Under Edge-to-Edge Repair: An In Vitro Steady Flow Study[J].2009,131(5).
- [9]P, Reverdiau-Moalic,H, Watier,I, Vallée,etc.Comparative study of porcine and human blood coagulation systems: possible relevance in xenotransplantation.[J].1996,28.
- [10]Morten, Smerup,Troels F, Pedersen,Camilla, Nyboe,etc.A long-term porcine model for evaluation of prosthetic heart valves.[J].2004,7(4).
- [11]Cibele M, Prado,Marcos A, Rossi.Aorta remodeling responses to distinct atherogenic stimuli: hypertension, hypercholesterolemia and turbulent flow/low wall shear stress.[J].2008,2.
- [12]P K, Paulsen,J M, Hasenkam.Three-dimensional visualization of velocity profiles in the ascending aorta in dogs, measured with a hot-film anemometer.[J].1983,16(3).
- [13]H, Nygaard,P K, Paulsen,J M, Hasenkam,etc.Turbulent stresses downstream of three mechanical aortic valve prostheses in human beings.[J].1994,107.
- [14]Saad Bader, Zakai,Salman-ur-Rehman, Khan,Fazle, Rabbi,etc.Effects of mitral valve replacement with and without chordal preservation on cardiac function: early and mid-term results.[J].1900,22(1).
- [15]Ping Qian,Pei Zhang,Joon Hock Yeo.Shear Stress Investigation Across Mechanical Heart Valve[J].2007,53(5).
- [16]Karlsson,M.,G?rdhagen,R.,Lantz,J..Quantifying turbulent wall shear stress in a subject specific human aorta using large eddy simulation[J].2012,34(8).
- [17]C M, Fan,S Q, Tao,H Y, Liu,etc.Hemodynamic evaluation of bovine pericardial xenograft valves in the mitral position by stress Doppler echocardiography.[J].1993,106.
- [18]Jon, Koch,John, Borg,Abby, Mattson,etc.An in vitro comparative study of intracanal fluid motion and wall shear stress induced by ultrasonic and polymer rotary finishing files in a simulated root canal model.[J].2012,2012.