[医学]心电图学教学PPT.ppt

心电图学教程Electrocardiogram teaching course;一、心电图学基础Fundament of the ECG 二、心电图的临床应用Clinical application of the ECG;一、心电图学基础Fundament of the ECG;（一）心血管传导系统cardiovascular intrinsic conduction system;心脏的传导系统由以下几部分组成;;;（二）正常心电图波形normal electrocardiographic complexes;正常心电图波形normal electrocardiographic complexes;（三）心电图导联 leads of the ECG;;双极肢体导联 bipolar extremity;;胸前导联（precordial leads）;胸前导联（precordial leads）;二、心电图的临床应用Clinical application of the ECG;;（一）心电图的测量方法determination method of the ECG;; 通常可根据肢体Ⅰ、 Ⅲ导联QRS波群的主波方向，以估测心电轴的大致方位： 若Ⅰ、Ⅲ导联QRS波的主波均为正向波，则可推断为正常心电轴（0?～90?）；;;;正常位心脏 normal position;心电轴转位rotation on the long axis;顺时钟转位 clockwise rolation;逆时钟转位 counterclockwise rolation;正常心与右位心的导联比较;右位心 dextrocardia;心电轴转位rotation on the anteroposterior axis; QRS 综合向量指向左下方(＋75° ~＋110°)，aVF主波向上，aVL和aVR主波向下。 QRS 综合向量指向左上方(0°~30°), aVL主波向上，aVR和aVF主波向下。 QRS 综合向量指向左下方(约30°)，aVL和aVF主波向上（与V5、V6相似），aVR主波向下。 ;水平位心 horizontal heart;垂直位心 vertical heart;中间位心 intermediate heart;（二）正常心电图normal ECG;心电图综合波、间期和段的检测determination of ECG complexes, intervals, and segments;心率的检测determination of the heart rate;正常心电图综合波、间期和段的图解diagram of ECG complexes, intervals, and segments;正常心电图综合波、间期和段的图解diagram of ECG complexes, intervals, and segments;正常心电图综合波、间期和段的图解diagram of ECG complexes, intervals, and segments;正常心电图综合波、间期和段的图解diagram of ECG complexes, intervals, and segments;正常心电图综合波、间期和段的图解diagram of ECG complexes, intervals, and segments;QRS波群;正常心电图综合波、间期和段的图解diagram of ECG complexes, intervals, and segments;正常心电图综合波、间期和段的图解diagram of ECG complexes, intervals, and segments;正常心电图综合波、间期和段的图解diagram of ECG complexes, intervals, and segments;正常心电图综合波、间期和段的图解diagram of ECG complexes, intervals, and segments;正常心电图综合波、间期和段的图解diagram of ECG complexes, intervals, and segments;正常心电图综合波、间期和段的图解diagram of ECG complexes, intervals, and segments;（三）心房与心室肥大atrial and ventricular hypertrophy;;1. 心房肥大 atrial hypertrophy;;左心房肥大 left atrial hypertrophy;右心房肥大 righ