Objective: To investigate the difference of ankle brachial index (ABI) and toe brachial index (TBI) in patients with type 2 diabetes, and evaluate the significance of ABI and TBI in judging lower extremity ischemia.

• 目的: 探讨踝肱指数(ankle brachial index ,ABI)、趾肱指数(toe brachial index ,TBI)在 2 型糖尿病(type 2 diabetes mellitus ,T2DM)病人中的变化、影响因素及评估下肢缺血的意义。