左心室壁厚度的三维超声心动图测量：体外和体内验证
Three-dimensional echocardiographic measurement of left ventricular wall thickness: In vitro and in vivo validation.
作者信息
Hubka Michal, Lipiecki Janusz, Bolson Edward L, Martin Roy W, Munt Brad, Maza Sharon R, Sheehan Florence H
机构信息
Cardiovascular Research and Training Center, University of Washington, Seattle, WA 98195, USA.
出版信息
J Am Soc Echocardiogr. 2002 Feb;15(2):129-35. doi: 10.1067/mje.2002.118911.
INTRODUCTION
Three-dimensional (3D) echocardiography has been shown to accurately measure left ventricular (LV) volume and mass. This study evaluated the accuracy of 3D echocardiography and the CenterSurface method for measuring LV wall thickness in vitro and in vivo.
METHOD
Three-dimensional echocardiography scans, obtained from 7 LV phantoms and subjects having healthy (n = 5) or diseased (n = 8) hearts, were digitized. Endocardial and epicardial borders were outlined and used in 3D LV reconstruction. In vitro wall thickness was compared with true micrometer measurements. Three-dimensional in vivo wall thickness was compared with 2-dimensional (2D) thickness measured by the centerline method.
RESULTS
The in vitro 3D echocardiography measurements agreed closely with true wall thickness (P <.0001), as did in vivo measurements (P <.0001).
CONCLUSION
Three-dimensional echocardiography reconstruction has previously been shown to provide accurate representation of LV shape in addition to volume and mass. This study demonstrates that the CenterSurface method provides accurate quantification of wall thickness.
引言
三维（3D）超声心动图已被证明能够准确测量左心室（LV）容积和质量。本研究评估了三维超声心动图和中心表面法在体外和体内测量左心室壁厚度的准确性。
方法
对从7个左心室模型以及健康心脏（n = 5）或患病心脏（n = 8）的受试者获得的三维超声心动图扫描进行数字化处理。勾勒出心内膜和心外膜边界，并用于三维左心室重建。将体外壁厚度与实际微米测量值进行比较。将三维体内壁厚度与通过中心线法测量的二维（2D）厚度进行比较。
结果
体外三维超声心动图测量值与实际壁厚度密切相关（P <.0001），体内测量值也是如此（P <.0001）。
结论
三维超声心动图重建先前已被证明除了能够准确呈现左心室的容积和质量外，还能准确呈现其形状。本研究表明，中心表面法能够准确量化壁厚度。
Zotero 插件