Correlation between T-Wave Alternans and Cardiac Volume Status via Intrathoracic Impedance Measurements
Figure 2
Data during heart failure exacerbation. Plots arranged as in Figure 1. The fluid index (a) is markedly elevated as intrathoracic impedance values drop (b). Sustained T-wave alternans is present as evidenced by the dark shading on the plots c and d (arrows).
