Hodgkin B C, Nelson C V, Angelakos E T
J Electrocardiol. 1976 Apr;9(2):123-8. doi: 10.1016/s0022-0736(76)80064-7.
Vectorcardiograms were obtained from 50 young domestic pigs using the Nelson lead system. Compensation for body size and shape is achieved and the resultant dipole moment magnitude reflects heart size. A strong relationship was found between heart size and maximum magnitude. Dipole moment magnitude increased as four pigs increased from five to ten weeks of age. The dipole moment during QRS is considered in light of known pig heart excitation pattern. Dipole locations during QRS, calculated by computer solution of the Gabor-Nelson equations, were in agreement with heart location and excitation data.
使用纳尔逊导联系统从50头幼年家猪身上获取了心电向量图。实现了对体型和形状的补偿，所得偶极矩大小反映了心脏大小。发现心脏大小与最大幅度之间存在密切关系。随着4头猪从5周龄增长到10周龄，偶极矩大小增加。根据已知的猪心脏兴奋模式来考虑QRS期间的偶极矩。通过对加博尔-纳尔逊方程进行计算机求解计算出的QRS期间偶极位置与心脏位置和兴奋数据一致。
