Atherosclerosis is the most common causes of vascular diseases.So;looking for the physical factors and correlations that explain the phenomena of existence the atherosclerosis disease in LAD artery in some people rather than the others is achieved in this study by analysis data from coronary angiography as well as estimating the blood velocity from coronary angiography scans without having a required data on velocity by using some mathematical equations and physical laws. It found some information that may explain the ability of small arteries to develop the lesions with time mainly in...