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Automated calculation of the integral electric vector of the ventricular cardiac activity in equines

机译：自动计算马匹心室活动的积分矢量

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摘要

The electrocardiogram is a valuable tool in the study of the cardiac electrical activity, and localization of the integral electric vector average (IEV) of the complex QRS is an important aspect for the diagnosis of cardiovascular alterations. The aim of the present work was to design an algorithm allowing the automated determination of the position of the average EIV of the complex QRS in equine. Twenty seven electrocardiographic registers of equines were collected and the net QRS voltages measured in the derivations V1c, V5c and V6. The calculations were made by means of a computer and manually after taken the pseudocode to the Java language through the environment NetBeans IDE 8.0. The results showed that there were no differences between the numerical values when the data were processed by the two methods used. It is concluded that the algorithm presented is reliable regarding the steps to follow for determining the position of the average IEV of the complex QRS because in comparing the results obtained by both the computer and manually, all the values coincided completely in all the cases. Thus, if the length of the waves recorded in the monopolar derivations V1c, V5c and V6 is measured, it is possible to calculate the spatial orientation of the IEV of any of the electrocardiographic waves. That corresponding to the complex QRS is located in the second octant, in cephalic direction.
机译：心电图是研究心脏电活动的有价值的工具，复杂QRS的积分电矢量平均值（IEV）的定位是诊断心血管改变的重要方面。本工作的目的是设计一种算法，该算法可以自动确定马中复杂QRS的平均EIV的位置。收集了二十七个马的心电图寄存器，并在导数V1c，V5c和V6中测量了QRS净电压。在通过NetBeans IDE 8.0环境将伪代码转换为Java语言之后，使用计算机进行手动计算。结果表明，使用两种方法处理数据时，数值之间没有差异。结论是，提出的算法对于确定复杂QRS的平均IEV位置所遵循的步骤是可靠的，因为在比较由计算机和手动获得的结果时，在所有情况下所有值都完全重合。因此，如果测量记录在单极导数V1c，V5c和V6中的波的长度，则可以计算任何心电图波的IEV的空间取向。对应于复杂QRS的那个在头向位于第二个八分音符。

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