缺血时心肌组织阻抗图

Proceedings of the 1991 IEEE Seventeenth Annual Northeast Bioengineering Conference Pub Date : 1991-04-04 DOI:10.1109/NEBC.1991.154640

M. Mirotznik, M. Fallert, D. Bogen, K. Foster

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引用次数: 0

摘要

建立了绵羊缺血心肌组织阻抗(MTI)测量系统和心外膜测图系统，该系统采用心周期门控和信号平均测量的四电极方法。缺血60分钟后，MTI比非缺血组织平均增加200%。心肌组织模型的建立表明MTI的变化主要是由于细胞体积分数的变化。

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Impedance mapping of myocardial tissue during ischemia

An impedance measurement system was developed for measuring myocardial tissue impedance (MTI) during ischemia in sheep and epicardial mapping system was developed that used a four electrode method with cardiac cycle gated and signal averaged measurements. After 60 minutes of ischemia, MTI increased by an average of 200% compared to non-ischemic tissue. A myocardial tissue model was developed which suggests that changes in MTI are primarily due to changes in cellular volume fraction.<>

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Proceedings of the 1991 IEEE Seventeenth Annual Northeast Bioengineering Conference

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