FIG. 3.

Wireless RFA in the myocardium. [(a) and (b)] Relative absorption ratio $F_{abs}$ for gold prolate spheroids in the myocardium as a function of spheroid diameter $D$ (marked in title), spheroid length $L$, and applied frequency $f$. (c) Relative absorption ratio $F_{abs}$ for gold prolate spheroids in the myocardium at $f=$ 434 MHz as a function of spheroid diameter $D$ and length $L$. (d) Relative absorption ratio $F_{abs}$ for gold prolate spheroids in the myocardium at $f=$ 400 kHz as a function of spheroid diameter $D$ and length $L$. (e) Simulations with the 13.56 MHz field applied at 5000 V/m, showing temperature distribution over 12 ms of heating the myocardium with an optimal nanowire bolus injection (injection boundary marked with a cyan solid line), and (g) average temperature of the nanowire-injected and bulk tissue regions vs time. (f) Simulations with the 400 kHz field applied at 5000 V/m, showing temperature distribution over 60 ms of heating the myocardium with an optimal nanowire bolus injection (injection boundary marked with a cyan solid line), and (h) average temperature of the nanowire-injected and bulk tissue regions vs time. Scale bar = 1 mm for all heatmaps.