64 Slice CT Angiography is a non-invasive procedure that helps in detecting minute blockages of the arteries of the heart. The images obtained through this procedure are sharp and crystal clear, enabling cardiologists to spot even the smallest of blockages at a very early stage. It is also used to determine the conditions of the stents and bypass surgery grafts of patients who have had angioplasties or CABG. Apollo Hospitals, India was the first in the country to introduce this sophisticated cardiac investigation. This facility is currently available at Apollo Hospitals Chennai and Kolkata.