利用横断面超声心动图对左心室进行计算机三维有限元重建。
Computerized three-dimensional finite element reconstruction of the left ventricle from cross-sectional echocardiograms.
作者信息
Nikravesh P E, Skorton D J, Chandran K B, Attarwala Y M, Pandian N, Kerber R E
出版信息
Ultrason Imaging. 1984 Jan;6(1):48-59. doi: 10.1177/016173468400600105.
A computerized method for the generation of a three-dimensional finite element mesh of left ventricular geometry is presented. The technique employs two dimensional echocardiographic images of the left ventricle. The echocardiographic transducer is attached to an articulated, computer-assisted, position registration arm with six degrees-of-freedom. These six degrees-of-freedom record the location and orientation of the transducer, when images are obtained, referenced to an external point. Hence, the images are digitized and aligned relative to one another, then several interpolation and curve fitting steps are used to reconstruct a three-dimensional finite element model of the left ventricle. The finite element model can be used for volume determination, stress analysis, material property identification, and other applications.
本文介绍了一种用于生成左心室几何形状三维有限元网格的计算机化方法。该技术采用左心室的二维超声心动图图像。超声心动图换能器连接到一个具有六个自由度的关节式、计算机辅助位置配准臂上。当获取图像时，这六个自由度记录换能器相对于外部点的位置和方向。因此，图像被数字化并相互对齐，然后使用几个插值和曲线拟合步骤来重建左心室的三维有限元模型。该有限元模型可用于容积测定、应力分析、材料特性识别及其他应用。
Zotero 插件