Conclusion: The LIR have important early diagnostic value for diabetic Vasculopathy, The LIR wave ampulitude chang are sensitive, it is a noninvasive, speed diagnostic method of limb blood supply.

• 结论：下肢阻抗血流图对糖尿病肢体血管病变早期诊断有重要辅助价值；以波幅指标最为敏感，是一种无创、快速的监测糖尿病肢体供血状况的辅助方法之一。