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The "disk in a cage" mechanical prosthesis provides a distinctive
appearance on color flow examination, as this transesophageal image
illustrates. Flow converges on the left atrial side and passes the plane
of the prosthesis ring. It then diverges laterally since there is no central
Bioprosthetic mitral valve: all three struts are seen in this patient.
Prosthetic Bileaflet Mitral Valve.
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November 9, 2002.