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多普勒超声体内定量检测人工心瓣下游TSS方法学的实验研究 被引量：3

A Methodological Study of Measuring Quantitatively Turbulent Shear Stress Downstream of artificial valve in Vivo Using Doppler Echocardiography
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摘要 目的验证多普勒超声检测结合图形分析软件计算TSS的客观性和准确性。方法建立二尖瓣置换术动物模型,采用多普勒超声检测结合软件计算和热线流速仪实测三种人工瓣膜下游6个测量点的TSS的对比研究和相关性分析。结果 两种方法得到的TSS比较无显著性差异(P>0.05),相关分析呈正相关(r=0.91,P<0.05)。结论多普勒超声结合软件分析计算TSS是一种比较客观准确的体内无创检测TSS方法。 Objective To prove the method of Doppler echocardiography combined with computerized image analysis was accurate and reliable through animal experiments. Methods The model of mitral valve replacement was established in swine to measure TSS in downstream flow field of artificial mitral valve at the same time the same location through Doppler indirectly and HFA directly. Then the two results was compared. Results There Was a positive cormlation between the results from two methods （r=0. 91,P〈0.05）. Conclusion By comparison with the HFA,the method of Doppler echocardiography combined with computerized image analysis was safe,non-invasive and accurate.
作者 张浒 杨百晖 张桂敏 王钰 李甘牛 孙毅 李斌
机构地区 昆明医学院第一附属医院心血管外科 昆明医学院第一附属医院心脏彩超室 南京航空航天大学
出处 《中国实验诊断学》 2012年第1期29-31,共3页 Chinese Journal of Laboratory Diagnosis
基金 国家自然科学基金项目(30860279)
关键词 湍流剪应力 多普勒超声 热线流速仪 猪 二尖瓣置换 turbulent shear stress doppler ultrasound hot film anemometry swine mitrat valve replacement
分类号 R445.1 [医药卫生—影像医学与核医学]
  • 相关文献

参考文献9

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二级参考文献11

  • 1Koppensteiner R, Moritz A, Schlick W, et al. Blood rheology after cardiac valve replacement with mechanical prostheses orbioprostheses[J]. Am J Cardiol, 1991,67(1) :79.
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共引文献16

同被引文献32

  • 1马千里,唐闽,于丁,王宪德.保留瓣下结构对二尖瓣置换术后左心功能的影响[J].医师进修杂志（外科版）,2005,28(4):16-18. 被引量：6
  • 2康燕华 陈明 胡大仁.保留后瓣及瓣下结构的二尖瓣置换术[J].中华胸心血管外科杂志,2002,2(7):63-64.
  • 3MORISHITA A, SHIMAKURA T, NONOYAMA M, et al. Mitral valve replacement in ischemic mitral regurgitation. Preservation of both anterior and posterior mitralleaflets[J]. J Cardiovasc Surg (Torino) , 2002,43:147-152.
  • 4KIRIS 1, GULMEN S, KURALA Y E, et al. Does posterior transposition of anterior leaflet for complete chordal preservation during mitral valve replacement improve postoperative left ventricular performance? [J]. Eur J Cardiothorac Surg , 2007,32: 820 - 821.
  • 5MUTHIALU N, VARMA S K, RAMANATHAN S. et al. Effect of chordal preservation on left ventricular function[J]. Asian Cardiovasc Thorac Ann, 2005.13:233-237.
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  • 9KORKOLIS D P. PASSIK C S, MARSHALKO S J, et al. Early bioprosthetic mitral valve 'pseudostenosis' after complete preservation of the native mitral apparatus[J]. Ann Thorac Surg,2002,74:l689-1691.
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引证文献3

二级引证文献7

中国实验诊断学
2012年 第1期

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