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Misra et al. Vessel Plus 2022;6:32 https://dx.doi.org/10.20517/2574-1209.2021.104 Page 3 of 13
Figure 1. Parasternal short-axis view showing a dilated right ventricle with septal bowing.
Figure 2. Doppler through trans-annular patch, demonstrating free pulmonary insufficiency
measurements of PR, with a ratio of 0.5 or greater correlated with a regurgitation fraction (RF) of 20% and a
[15]
ratio of 0.7 correlating with an RF of 40% .
