Imaging and navigation technologies, such as intraoperative angiography, intraoperative ultrasound, 3D printing, and computer-assisted surgery, can assist in bypass surgery by providing real-time visualization of the coronary arteries, aiding in accurate location of blockages and planning of the bypass grafting. 3D printing allows the creation of patient-specific models of the heart and blood vessels, which can help the surgeon to better understand the anatomy and plan the surgery accordingly. Computer-assisted surgery involves using computer algorithms and robotic systems to guide the surgeon during the procedure, enhancing precision and reducing the risk of human error.