###Human: Why are there calcified plaques in the coronary arteries? ###Assistant: Hello.  If the patient had a stent surgery then why he is only on aspirin? He should be on dual antiplatelet, high dose statin, ACE (angiotensin-converting enzyme) inhibitor and a beta blocker. Please revise the medication chart. Consult your specialist doctor, discuss with him or her and with their consent take the medicines. A coronary angiogram only tells us that disease is present in a specific artery and does not tell the extent of the disease. If the patient is symptomatic then he should check angiography to assess the extent of the of disease present. For more information consult a cardiologist online -->