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本文报道用Frank导联的QRS总和向量((?)_f)对30名正常人(男14例,女16例)进行检查的结果,观察它们对估计左室壁厚度的价值,以及判断它们是否可作为普查的筛选标准。同时记录超声心动图及心电图作为对照。v_f是心向量图x,y和z导联的瞬间向量,通过模拟计算机算出v_f=(x~2+y~2+z~2)~(1/2)。此空间向量为时间的函数,其绝对值大小称为总和向量,用(?)代表。(?)_f(总和向量)=最大的v_f=最大(x~2+y~2+z~2)~(1/2)。
This paper reports the results of 30 normal subjects (14 males and 16 females) examined by Frank’s QRS sum vector ((?) _f) and observed their value in estimating left ventricular wall thickness and whether they are Can be used as screening screening criteria. Echocardiography and ECG were recorded at the same time as a control. v_f is the instantaneous vector of the x, y, and z leads of the heart vector plot, and v_f = (x ~ 2 + y ~ 2 + z ~ 2) ~ (1/2) is calculated by an analog computer. This space vector is a function of time and its absolute magnitude is called the sum vector, denoted by (?). (?) _f (sum vector) = maximum v_f = maximum (x ~ 2 + y ~ 2 + z ~ 2) ~ (1/2).