Hoekema R, Uijen G J, Stilli D, van Oosterom A
Department of Cardiology, University Hospital Nijmegen, The Netherlands.
J Electrocardiol. 1998 Apr;31(2):71-82. doi: 10.1016/s0022-0736(98)90037-1.
Multicenter application of body surface map data (multilead electrocardiographic [ECG] data) is hampered by the fact that the centers involved in body surface mapping use lead systems differing in lead placement as well as in the number of leads. In this study, the performance of two methods for converting multilead ECGs from one lead system to another is evaluated in their application to the major lead systems presently in use throughout the world. The first method is based on Laplacian interpolation, and the second method is derived from the correlations between the signals in an extensive lead system. Through analyzing the representation errors, it was found that, for lead systems incorporating over 60 leads, both methods work well, yielding errors comparable to interbeat differences in individuals. For lead systems incorporating fewer leads, the correlation method is to be preferred.
体表心电图数据（多导联心电图 [ECG] 数据）的多中心应用受到阻碍，因为参与体表心电图研究的各中心所使用的导联系统在导联放置位置以及导联数量上均存在差异。在本研究中，评估了两种将多导联心电图从一种导联系统转换为另一种导联系统的方法在全世界目前使用的主要导联系统中的应用性能。第一种方法基于拉普拉斯插值法，第二种方法源自广泛导联系统中信号之间的相关性。通过分析表示误差发现，对于包含60多个导联的导联系统，两种方法都能很好地发挥作用，产生的误差与个体的心搏间期差异相当。对于导联数量较少的导联系统，相关法更可取。
