Arteriosclerosis is a dynamic inflammatory disorder. Recently, FDG-PET CT is emerging diagnostic tool of non-invasive technique to detect vulnerable atherosclerotic plaque. And there are arising evidence that sRAGE(soluble Receptor for Advanced glycation End Product) is correlated with metabolic risk. So the investigators will investigate association between sRAGE and FDG-PET uptake in large artery in healthy patient.

Inclusion Criteria:

• Clinical diagnosis od type 2 DM

Exclusion Criteria:

• Type 1 DM
• Gestational Diabetes
• Severe Liver or Renal disease
• Diagnosis of cancer
• Trauma
• Acute infection or inflammatory disease
• Acute vasculitis or history of vasculitis
• Pregnant or Lactating women
• Dyslipidemia(active state)
• Cardiovascular disease or history of CVD
• Chronic obstructive pulmonary disease
• Any patient by judge of investigator

type 2 DM diagnoed according to critereia of American Diabetes Asociation.