Coronary angiography is a minimally invasive medical procedure that uses a special contrast medium and X-rays to visualize the blood flow in the heart's arteries in detail. This diagnostic method allows for the detection of possible narrowings or blockages in the coronary arteries without requiring surgical intervention. It plays a vital role in diagnosing conditions such as heart attack, angina (chest pain), or other coronary artery diseases, and helps in establishing effective treatment plans. Typically performed in a catheterization laboratory, this procedure provides crucial diagnostic information with minimal impact on the patient's condition.