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目的 :考察 90 Yβ射线血管内照射疗法在防止支架内血管再狭窄 (ISR)的再发生中的有效性和安全性。方法 :对 5 0例发生了 ISR的患者行经皮冠状动脉成形术、激光成形术或冠脉内斑块旋切术 ,部分患者植入了支架。利用后装机将 90 Y线源经球囊导管 (球囊直径 2 .5～ 4.0 mm )至病
OBJECTIVE: To investigate the efficacy and safety of 90 Y-ray intravascular irradiation in preventing the recurrence of intravascular stent restenosis (ISR). Methods: Fifty patients with ISR underwent percutaneous transluminal coronary angioplasty, laser angioplasty or coronary angioplasty. Some patients underwent stent implantation. After the use of installed 90 Y line source via the balloon catheter (balloon diameter 2.5 ~ 4.0 mm) to the disease