Objective To evaluate the function of peripheral vessels,observed the changes of ankle-brachial index (ABI)and toe-brachial index(TBI) and its related risk factors in elderly type 2 diabetic patients.

• 目的应用四肢血管多普勒仪检查评估老年2型糖尿病患者周围血管功能状态，探讨踝肱指数、趾肱指数在老年2型糖尿病患者中的变化及其与相关因素的关系。