心电图
心电图（electrocardiography、ECG 或者 EKG）是一种经胸腔个以辰光为单位记录心脏个电生理活动，并通过皮肤上个电极捕捉并记录下来个诊疗技术。迭是一种无创性个记录方式。Electrocardiography个词源来自于三个希腊单词：“electro”，因为搭电生理活动有关，“cardio”，希腊语“心脏”，还有“graph”，一个希腊语个词根，意思为：“描记”。
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