结论：CDU是下肢慢性动脉闭塞性疾病术前评价和术后随访有价值的方法。
Conclusions: (CDU) is a valuable method for preoperative assessment and postoperative followup of chronic occlusive arterial diseases in lower limbs.
目的：探讨彩色多普勒超声(CDU)在下肢慢性动脉闭塞性疾病手术前后的应用价值。
Objective: To explore the value of color Doppler ultrasound (CDU) for the examination of chronic occlusive arterial diseases in lower limbs before and after operation.
血栓闭塞性脉管炎是常见的周围动脉慢性闭塞性疾病之一。
Objective Thromboangitis obliterans is one of common chronic periarterial ischemia disorders.
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