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前言 心脏功能的检查分为创伤性和无创伤两种方法。无创伤检查安全、可重复,易为广大患者和医生接受。 早在1923年Katz等就应用同步照象的心电机械图测定心脏收缩时间问期,但由于设备限制,一直到六十年代有了生理多道记录仪,经冠状动脉造影对照后肯定了这种无创伤检查的价值,国际上才开始用心电机械图等测定心脏功能的研究。但多道仪昂贵并要手工测算,故研究微机化的功能仪是必然趋势。我们从1985
Foreword Heart function tests are divided into traumatic and non-invasive two methods. Non-invasive examination safe, repeatable, easy for the majority of patients and doctors to accept. As early as 1923, Katz et al. Used a synchronized electrocardiogram to measure systolic time, but due to equipment limitations, physiologic multichannel recorders were validated by coronary angiography until the 1960s The value of non-invasive examination, the international community began to use electrocardiogram and other measurements of cardiac function research. However, multi-channel instrument expensive and manual calculations, so the study of computerized function meter is an inevitable trend. We from 1985