Mitral Annular Nonplanarity: Correlation Between Annular Height/Commissural Width Ratio and the Nonplanarity Angle
Mitral Annular Nonplanarity: Correlation Between Annular Height/Commissural Width Ratio and the Nonplanarity Angle
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DOI：
10.1053/j.jvca.2011.09.007
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发表时间：
2012-04-01
影响因子：
2.8
通讯作者：
Mahmood, Feroze
中科院分区：
文献类型：
--
作者：
Warraich, Haider J.;Chaudary, Bilal;Mahmood, Feroze
目的：比较二尖瓣环非平面性的两种方法：数学计算的瓣环高度与连合宽度比（AHCWR）和超声心动图推导的非平面角。设计：前瞻性。设置：三级护理大学医院。干预：三维经食管超声心动图。参与者：接受二尖瓣手术的患者。测量和主要结果：使用三维经食管超声心动图，从22例接受二尖瓣手术的患者中采集体积数据集。使用二尖瓣评估软件（Tomtec GmbH，慕尼黑，德国）计算术中非平面角。此外，将三维经食管超声心动图期间采集的数据集导出至Matlab软件（MathWorks，Natick，MA），用于计算AHCWR。非平面角与AHCWR具有良好的相关性（r = 0.70）。结论：非平面角与AHCWR之间存在良好的相关性。这表明非平面角可用于以临床可行的方式评估二尖瓣环的非平面性。(C)2012 Elsevier Inc. All rights reserved.
Objective: To compare two methods of mitral annular nonplanarity: the mathematically calculated annular height-to-commissural width ratio (AHCWR) and the echocardiographically derived nonplanarity angle.Design: Prospective.Setting: Tertiary care university hospital.Interventions: Three-dimensional transesophageal echocardiography.Participants: Patients undergoing mitral valve surgery.Measurements and Main Results: Using 3-dimensional transesophageal echocardiography, volumetric datasets were acquired from 22 patients undergoing mitral valve surgery. The intraoperative nonplanarity angle was calculated with Mitral Valve Assessment software (Tomtec GmbH, Munich, Germany). Furthermore, the datasets acquired during 3-dimensional transesophageal echocardiography were exported to Matlab software (MathWorks, Natick, MA), which was used to calculate the AHCWR. The nonplanarity angle was seen to correlate favorably with the AHCWR (r = 0.70).Conclusions: A favorable correlation was found between the nonplanarity angle and the AHCWR. This suggests that the nonplanarity angle can be used to assess mitral annular nonplanarity in a clinically feasible fashion. (C) 2012 Elsevier Inc. All rights reserved.