血管成形术是治疗血管闭塞性疾病的主要手段，但术后再狭窄的高发生率为其的应用带来了阻碍。
Angioplasty is the main method of treating vascular occlusive diseases, but high incidence of restenosis after operation has hampered its clinical applications.
但内膜切除术后发生的再狭窄现已成为影响手术疗效的关键因素。
But restenosis after carotid endarterectomy has become a key factor influencing the efficacy of operation.
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