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导联轴是某一导联正负极之间假想的联线,对解释心电图与心电向量之间的关系占重要的地位。贝莱氏(Bailey)六轴系统是在爱氏(Einthoven)三角学说的基础上,把Ⅰ、Ⅱ、Ⅲ导联轴按原方向平移于心电偶中心,与~aVR、~aVF、~aVL 构成额面六轴系统。然后用环体分割投影法便可很方便的作出额面向量在某一导体轴上投影形成的心电图。按照贝氏六轴系统,心电向量与某一导联轴平行时,该轴的投影向量可最大,但实际上由于爱氏三角是
Lead axis is a hypothetical line between the positive and negative lead, to explain the relationship between ECG and ECG vector occupies an important position. Based on the Einthoven trigonometry theory, the Bailey six-axis system translates the I, II, III lead axes in the original direction to the even center of the ECG with ~ aVR, ~ aVF, ~ aVL Constitute the frontal six-axis system. Then use the ring segment projection method can easily make the amount of frontal plane in a conductor axis formed by the projection of the ECG. According to the Bayesian six-axis system, the vector of the electrocardiogram is parallel to a certain axis of the lead, the projection vector of the axis may be the largest, but in fact, since the Iris triangle is