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. Author manuscript; available in PMC: 2014 Nov 18.
Published in final edited form as: J Am Coll Cardiol. 2010 Mar 9;55(10):1041–1047. doi: 10.1016/j.jacc.2010.01.016

Figure 1.

Figure 1

Factors at Catheterization and PR Fraction

(A) Balloon:annulus ratio and (B) ln (age at catheterization) versus pulmonary regurgitation (PR) fraction. PR fraction ≤15% is shaded. In the regression equations, PR% is expressed as a fraction.