本文通过140例健康人和73例不同类型的心脏病病人采用STI和胸部阻抗微分图相结合的检测技术,来了解心脏的收缩性能和心脏泵血功能,表明此二技术相结合在评定心肌的收缩性能和泵血功能上有相互补充和相互印证的作用。不仅可用于健康检查、诊断病情、而且可以观查药物疗效。它是一项无损伤、可重复性.足以信赖的,又易于为病人所接受的检查技术。 In this paper, 140 healthy people and 73 different types of heart disease patients using STI and chest impedance differential graph detection technology to understand the contractility of the heart and cardiac pump function, indicating that the combination of these two techniques in the assessment of myocardial Shrinkage and pump blood function complement each other and verify each other’s role. Not only for health examination, diagnosis of the disease, but also to observe the efficacy of drugs. It is a non-invasive, reproducible, reliable and easily-accepted screening technique.