Urumov G, Shakhov B
Vutr Boles. 1977;16(6):29-34.
Space analysis methods of the changes in heart electromotive force are described (EMF). The size of the space vector in millivolts, azimuth and elevation are obtained by formula substitution in the mathematical analysis. The same values, in graphis analysis, are obtained by the "Circle for space vectors determination", proposed by the authors. Axial and space analysis of the changes in the electrogenesis of right ventricle was performed in 27 patients with pulmonary stenosis, confirmed by catheterization, on the base of the corrective orthogonal electrocardiogram according to Frank. The axial indices, indicating the size of the forces directed to the right (Sxmv) and forward (Qzmv) are compared as well as the size, elevation and azimuth of the maximal space vector, directed to the right (Vmax.sp-x) and forward (Vmax.sp-z). The index from the axial analysis (sensitivity 62%, r = 0.65) shows a priority for the forces, directed to the right. The priority is on the side of the indices from space analysis (sensitivity 33%, r = 0.78) in case of forces directed forward. There is no statistically significant difference in the diagnostic value of the two methods.
描述了心脏电动势（EMF）变化的空间分析方法。通过数学分析中的公式代入，可得到以毫伏为单位的空间向量大小、方位角和仰角。在图形分析中，通过作者提出的“空间向量确定圆”可得到相同的值。基于根据弗兰克校正的正交心电图，对27例经导管检查确诊为肺动脉狭窄的患者进行了右心室电发生变化的轴向和空间分析。比较了指示向右（Sxmv）和向前（Qzmv）方向力大小的轴向指标，以及向右（Vmax.sp-x）和向前（Vmax.sp-z）方向最大空间向量的大小、仰角和方位角。轴向分析指标（敏感性62%，r = 0.65）显示向右方向的力具有优先性。对于向前方向的力，空间分析指标（敏感性33%，r = 0.78）具有优先性。两种方法的诊断价值无统计学显著差异。
