Coronary angiography, commonly known as anjiyo, is a diagnostic method used to visualize the blood vessels of the heart. During this procedure, a very thin and flexible tube called a catheter is typically inserted into an artery, usually in the groin area. Once the catheter is guided to the coronary arteries, a contrast medium (dye) is injected into it. X-ray images are taken as the contrast medium flows through the blood vessels; these images reveal the structure of the vessels and any potential blockages. If the right groin artery is not usable, alternative access points such as the left groin artery, right or left wrist arteries, elbow, or armpit arteries may be preferred.

The coronary angiography procedure generally takes 10-20 minutes. However, this duration may be slightly extended due to different anatomical structures of the vessels or their tortuosity (especially in abdominal and groin arteries). In patients who have undergone bypass surgery, the procedure can take 20-30 minutes.

After the procedure is completed, the catheter is removed, and pressure is applied to the insertion site for 15-20 minutes to stop the bleeding. Once bleeding is controlled, a tight bandage and weight are applied, and the patient is rested in a lying position for approximately 4-6 hours. At the end of the sixth hour, the patient is helped to stand up and is then discharged.

During the angiography, approximately 5 views are taken to visualize the left coronary arteries, and 2-3 views for the right coronary artery. To visualize the heart's left ventricle, which primarily performs the pumping function, 15-25 cc of contrast medium is used across 2 views.

The patient can shower the next day. Normal daily activities can be resumed unless there is significant swelling, excessive pain, or extensive bruising at the insertion site.