Figure 6. Direction of zebrafish cardiac vector and its shift during heart regeneration.
ECG recorded from chest (A) and dorsal side (B) showing the direction of normal depolarization vector. (C) Shift in cardiac vector after ventricular injury. (D) Negative-directed R wave occasionally recorded by Probe 2. (E) Ratio of two-probe amplitude representing recovery of cardiac vector along with the regenerative process. Values are presented as the mean + SD. (F) Correlation coefficient between QT and RR interval of sham control, amputation and cryoinjury group.