Atherosclerosis is a pathological condition of arteries characterized by inflammation and infiltration of cholesterol particles in the arterial wall, forming the atherosclerotic plaques. These plaques are formed by lipids, inflammatory cells, smooth muscle cells and fibrotic connective tissue and growth during people lifetime leading to the arterial lumen occlusion and lastly to severe complications, such as myocardial infarction for coronary arteries, which can lead to death. For these reasons coronary artery disease (CAD) results as the leading cause of death in most developed countries. Therefore, there is a need to develop technologies that enable early diagnosis of the disease so that timely intervention can take place.