We evaluated mean/maximal carotid IMT in seventy-one type 2 diabetic subjects, and defined increased carotid IMT as maximal IMT ≥ 1.0 mm. Multidetector CT (MDCT) and pulse wave velocity (PWV) were taken to evaluate carotid artery stenosis (CS), coronary artery disease (CAD), intracranial arterial lesion (ICA), and peripheral artery disease (PAD). We compared prevalence of large artery stenosis according to carotid IMT group and evaluated whether maximal IMT ≥ 1.0 mm could predict for significant CAD by MDCT. We performed invasive coronary angiography in some patients (N=14) and analyzed association for degrees of CAD between two angiographic methods.