| 史为清,王俊杰,杜晶,刘文彦.容积导体对离体蟾蜍心电的影响[J].济宁医学院学报,2013,(2):103-105 |
| 容积导体对离体蟾蜍心电的影响 |
| The effects of volume conductor on ECG in isolated heart of toad |
| 投稿时间：2013-01-15 |
| DOI：10.3969/j.issn.1000-9760.2013.02.008 |
| 中文关键词: 容积导体;心电图;R波;离体蟾蜍心脏 |
| 英文关键词: Volume conductor;Electrocardiogram;R wave;Isolated heart of toad |
| 基金项目:2011年济宁医学院青年科研基金(JYQ2011KM019) |
| 作者 | 单位 | E-mail | | 史为清 | 济宁医学院基础学院, 山东济宁 272067 | | | 王俊杰 | 济宁医学院基础学院, 山东济宁 272067 | wangjunjie6723@163.com | | 杜晶 | 济宁医学院基础学院, 山东济宁 272067 | | | 刘文彦 | 济宁医学院基础学院, 山东济宁 272067 | |
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| 中文摘要: |
| 目的 探讨容积导体对离体蟾蜍心电的影响。方法 离体蟾蜍心脏置培养皿中央,培养皿内加入林格氏液,在培养皿周边置电极记录心电。结果 心电图R波幅度随心脏周围容积导体的增大明显减小。容积导体由1ml增大到5ml,R波幅度即明显减小,由(0.99±0.12)mV减小到(0.53±0.06)mV,减小46.5%;当容积导体增大到30ml时,R波减小94.9%。结论 心电图受心脏周围容积导体或组织液量的影响。 |
| 英文摘要: |
| Objective To study the effect of volume conductor on ECG in isolated heart of toad.Methods The isolated toad heart was placed in the middle of petri dish,and ringer's solution was dripped into the petri dish,whose rim was connected with the recording electrodes so as to get ECG.Results Amplitude of R wave in ECG decreased distinctively while volume conductor increased.Amplitude of R wave decreased to be 0.53 ±0.06mv from 0.99 ±0.12mv when volume conductor increased from 1ml to 5ml,and the decreasing rate was 46.5%.Amplitude lessened 94.9% with volume conductor raising to be 30ml.Conclusion ECG could be influenced by volume conductor or volume of tissue fluid around the heart. |
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