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. Author manuscript; available in PMC: 2014 Apr 13.
Published in final edited form as: Annu Rev Biomed Eng. 2010 Aug 15;12:233–258. doi: 10.1146/annurev-bioeng-070909-105305

Figure 8.

Figure 8

Effects of shocks on intramural Vm in a porcine LV wedge preparation. (a) Optical recordings of Vm in control action potentials and during shock application. E, shock strength. The numbers correspond to the photodiodes indicated in panel b. (b) Isopotential maps of shock-induced ΔVm distribution measured at 9 ms after shock onset. The dashed lines indicate the epicardium on the left and the endocardium on the right (42). APA, action potential amplitude.