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首页> 外文会议>BMEI 2012;International Conference on Biomedical Engineering and Informatics >Image electrocardiography based on a cardiac vector projection circle
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Image electrocardiography based on a cardiac vector projection circle

机译：基于心脏矢量投影圆的图像心电图

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Cardiac vector projection forms the basis of 12-lead electrocardiography (ECG). However, the spatial relationship between the leads is not obvious in 12-lead ECG. In addition, the lead strengths of the three augmented leads are insufficiently represented. In this paper, we propose a new image ECG, which represents the cardiac vector projection over a 360 degree spatial angle on an observation plane (frontal, horizontal, or sagittal plane) in 3D space. We also present a novel “cardiac vector circle” and mathematically demonstrate that the diameter of the circle equals the magnitude of the cardiac vector. The intersections between the “cardiac vector circle” and ECG leads determine the projected ECG lead strengths. We further demonstrate that the lead strengths of the three augmented leads of 12-lead ECG are only V3/2 that of the projected lead strengths; this finding shows that the lead strengths between the standard bipolar limb leads and the augmented limb leads are not on the same scale. Finally, we also illustrate that there exists an evolutional relationship between 12-ECG, vectorcardiography (VCG), and image ECG.
机译：心脏向量投影形成了12导联心电图（ECG）的基础。但是，在12导联ECG中，导联之间的空间关系并不明显。另外，不足以表示三个增强引线的引线强度。在本文中，我们提出了一种新的ECG图像，它代表3D空间中观察平面（额，水平面或矢状平面）上360度空间角上的心脏矢量投影。我们还提出了一种新颖的“心脏矢量圆”，并在数学上证明了圆的直径等于心脏矢量的大小。 “心脏向量圆”和ECG导线之间的交点确定了预计的ECG导线强度。我们进一步证明，12导联心电图的三个增强导联的导联强度仅为预计导联强度的V3 / 2。该发现表明标准双极肢体引线与增强肢体引线之间的引线强度不在同一范围内。最后，我们还说明了12-ECG，矢量心电图（VCG）和图像ECG之间存在进化关系。

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