- Most studies shown correlation between measures of atherosclerosis change using intima media thickness measured in different carotid regions and the extent of coronary atherosclerosis measured with angiography(9).

- Cholesterol Lowering Atherosclerosis Study (10) confirm that measurement of progression of intima-media thickness in the distal common carotid artery is a useful surrogate end point for clinical coronary events : for each 0,03mm increase per year the relative risk for any coronary event is >3.

- Intima media thickness of the common carotid artery and the internal carotid artery is associated with the risk of myocardial infarction in older adults without history of cardio-vascular disease ( Cardiovascular Health Study) with a relative risk of 3,87 between lowest and highest IMT(8).