Fig. 8.

Quantified results of the flutter signal energy for tracking curves H₁ (Left) and V₂ (Right). $E_{\hspace{0.17em}\text{LC}}^{\hspace{0.17em}\text{leaflet}}$ indicates the signal energy on the left coronary leaflet for a single cardiac cycle. $E_{\hspace{0.17em}\text{RC}}^{\hspace{0.17em}\text{leaflet}}$ and $E_{\hspace{0.17em}\text{NC}}^{\hspace{0.17em}\text{leaflet}}$ indicate the signal energy on the right coronary and noncoronary leaflets, respectively. ${\mathrm{H}}_1$ and ${\mathrm{V}}_2$ indicate the free edge and the central vertical tracking curve on the leaflets, respectively, as shown in Fig. 1C.