【摘要】 目的:探讨心电图V₇、V₈、V₉导联Q波的正常值。方法:对1280名健康查体者,除描记常规12导联心电图外,加描V₇、V₈、V₉导联心电图。剔除其中患有或疑似患有各种心脏疾患320人,对960名入选者的V₇、V₈、V₉导联Q波、R波由专业人员进行测量、统计,并进行统计学处理。结果:测得的V₇、V₈、V₉导联Q波的正常值范围是:时间<0.04S;电压:V₇≤0.15mV,V₈≤0.20mV,V₉≤0.25mV;Q/R:V₇≤1/4,V₈≤1/2,V₉≤1。结论:此数值可作为V₇、V₈、V₉导联Q波诊断的正常值参考标准。更多还原

【Abstract】 Objective: To explore normal value of Q wave in V7, V8, V9 leads of electrocardiogram.Method: The electrocardiogram of 12 leads and V7, V8, V9 leads of 1280 helthy people was examined. Except 320 patients with various heart disease or doubtful heart disease, Q and R wave of V7, V8, V9 leads of 960 patients were measured, calculated and bandied in statistics. The normal range of Q wave was as follows: time < 0.04s, voltage: V7≤0.15mV, V8≤0.20mV, V9≤0.25mV, Q/R: V7≤1/4, V8≤1/2, V9≤1. Conclusion : The aforesaid value Q wave of V7, V8 , V9 may be normal referable value.更多还原