Cardiology is the study and treatment of disorders of the heart and the blood vessels. Physicians who specialize in this field of medicine are called cardiologists, a specialty of internal medicine. The training required to become a cardiologist involves more than 10 years of studying internal medicine and specialized programs.

Subspecialties of the cardiology field include:

·         Cardiac electrophysiology

·         Echocardiography

·         Interventional cardiology

·         Nuclear cardiology