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Figure 8 Example of the time course of relative rise of tissue impedance (Rt) in an isolated perfused heart and a heart in situ (top). Both electrodes are from the central ischemic zone and displayed a more than twofold rise in absolute Rt. 100% indicates the value at 90 min of ischemia. Bottom: Onset, time of maximum rise and time of 95% rise of Rt compared between isolated hearts and in situ hearts.
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