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Macrovascular stiffness and distensibility. A: representative intravascular ultrasound images from Lean and MetS left anterior descending coronary arteries (LADs) in diastole and systole. Scale bars, 1 mm. B: LAD beta stiffness index. C: LAD distensibility. Values are means ± SE; n = 6–7 per group. *P < 0.05; **P < 0.01 vs. Lean.
