The red line represents where the upper left loop in the echocardiogram transects the 3D-loop, the blue line represents the lower loop.
Replacement valves may be either tissue biologic valves, which include animal valves and donated human aortic valves, or mechanical valves, which can consist of metal, plastic, or another artificial material.
This test that uses invisible electromagnetic energy beams to produce images of internal tissues, bones, and organs onto film.