When we first saw this image, we thought it was a medical illustration. It’s actually an enhanced CT scan that is as aesthetic as it is instructive. The patient had previously undergone coronary artery bypass surgery. You can see the connection points of the grafts to the aorta. Clips and wires used by the surgeon are also visible. The bypass grafts are successful; the image indicates that blood is flowing through them. Read more about Mayo’s research into rheumatoid arthritis and heart disease, heart transplant research, and stem cell therapy after heart attack.