【摘要】 本文选取６９名心肌炎患者，９４名正常人做为对照。依其年龄不同，共分６组：幼儿心肌炎组，正常幼儿组，学龄心肌炎组，正常学龄组，成人心肌炎组，正常成人组。分别对这６组的Ⅱ导、ａＶＦ导、Ｖ２导、Ｖ５导ＱＲＳ波群０－１０００Ｈｚ、８０－３００Ｈｚ、１００－１０００Ｈｚ３个频段的功率谱（用绝对能量表示）进行了分析。结果提示，不同年龄的心肌炎患者，其心电信号高频频段的能量变化规律不一致。更多还原

【Abstract】 This paper analyzed the power spectrum of QRS complex in lead5 Ⅱ、aVF、V2、V5 of six groups subjects:Group Ⅰ,infants myocarditis(n= 18);Group Ⅱ,normalinfants(n=27),Group Ⅲ,children myocarditis(n=28);Group Ⅳ,noimal children(n= 32);GroupⅤ,adults myocarditis(n=23);Group Ⅵ,normal adults(n=35).The power contentsin the frequency ranges of 0-1000Hz、80-300Hz、100-1000Hz were analyzed. These re-sults suggested that the change of high frequency powers of QRS complex were inconsistentin the different ages patients with myocarditis.更多还原