中文摘要：

目的解决心电图诊断学理论中关于心电图波形产生原理中遇到的教与学的两难问题。方法我们尝试将临床心脏三维电生理标测图与心电图产生基本机制相结合，用来解释正常及部分异常心电图波形产生的基本机理，从而介绍一种新的心电图理论教学方法。结果本方法可直观地阐述正常和异常心电图各个导联心电图波形特征及其机制，使学生迅速具备心电图的分析能力和阅图判读能力。结论将心脏三维电生理图应用于教学可以解决心电图诊断学理论中关于心电图波形产生原理中遇到的教与学的两难问题，值得在教学中推广。

英文摘要：

Objective To solve the problem of teaching and studying the electrocardiographic waveform and its theoretic mechanism efficiently. Methods We firstly recommend a new teaching method which based on three-dimension electrophysiological mapping and basic mechanism of electro- cardiogram （ECG） wave formation. Results The method can well explain almost all waveform char- acteristics and their theoretic mechanism. Therefore,the new analytic teaching method of ECG is valu- able to apply into medical education because it improves students＇ ECG interpretation skills. Conclusion It is a good new teaching method that applying three-dimension electrophysiological map into explaining ECG＇s waveform and its theoretic mechanism,which was worthy of promotion.