Cardiovascular procedures like cardiac echocardiography and extracorporeal circulation are used to diagnose and treat heart conditions. Cardiac echocardiography uses ultrasound to create detailed images of the heart, allowing observation of heart tissue, valves, blood flow, and other metrics. Extracorporeal circulation involves circulating blood outside the body during open-heart surgery using a heart-lung machine. Thrombolytic drugs like tPA are also used to dissolve dangerous blood clots and restore blood flow in emergencies like strokes and heart attacks.