Introduction : There is no doubt that the detection, identification and early diagnosis of coronary atherosclerosis is currently a matter of extreme importance. By mean of ultrasonography we are able to examine the different layers of the wall of the carotid and femoral arteries. Methods: 30 diabetic, asymptomatic patients, all of them will be subjected to vascular ultrasonography of both carotid and femoral arteries (IMT measurement) and the result will be correlated with stress ECG test.Result: in our study, 30 diabetic patient, majority of then had atherosclerotic risk factors and positive stress ECG test. Intimal media thickness above 1.0 mm is considered abnormal (> 1.0 mm). Increasing IMT is show with greater numbers of risk factors include dyslipidemia, hypertension and smoking.Conclusion: diabetes mellitus is an important risk factor that affect the relationship between CAD and carotid arterial disease.