Complex sentence: Unlike an EKG (which would mostly show the results of past heart attacks) and Thallium Stress Test (which only shows up advanced blockages of 70% or more), the HEART scan is an excellent way to determine if a person has Coronary Arterial Disease.
Split into simpler sentences: Unlike an EKG (which would mostly show the results of past heart attacks) and Thallium Stress Test (which only shows up advanced blockages of 70% or more). It is an excellent way to determine if a person has Coronary Arterial Disease.