Epicardial Echocardiography of Coronary Anastomoses Using the Echoclip Device

An ultrasound transducer positioning device, the Echoclip device (Aalborg Hospital, Aalborg,Denmark), which can stabilize the involved part of the myocardium on the beating heart, keep the gel at place, and position the ultrasound transducer correctly for imaging will be used for visualising the coronary bypass anastomoses during surgery