Comments Surgery:

• Stented bovine pericardial valve, historical valve 

Comments Echocardiography:

• No EOAi calculator available 

References:

1. Rosenhek et al. Normal Values for Doppler Echocardiographic Assessment of Heart Valve Prostheses. Journal of the American Society of Echocardiography, November 2003
2. Copyright by http://en.wikipedia.org/wiki/File:The_Ionescu-Shiley_Pericardial_Xenografts.jpg
3. No original link available