目的　分析多血管性椎体肿瘤术前动脉内栓塞的技术并评价其安全性与疗效。方法　对 16例多血管性椎体肿瘤的患者外科手术前进行了动脉内栓塞。共对 4 1支动脉用永久性颗粒栓塞剂进行了栓塞 ,2 5支用聚乙烯醇 (PVA)颗粒 (15 0 - 5 0 0 μm) ;16支用葡聚糖颗粒 (15 0 - 35 0 μm)。 31支动脉在注入颗粒后再加用明胶海绵小块进行近端栓塞。栓塞效果则通过肿瘤的切除率与术中出血量进行评价。结果　颗粒均通过微导管注入肿瘤供血动脉 ,其中 17支动脉经超选择插管后直接将颗粒注入肿瘤供血动脉 ,2 4支是通过血流控制技术注入。肿瘤栓塞结果为 :“完全”5例 ,“亚全”8例 ,“次全”2例 ,“部分”1例。所有病例均未出现与栓塞有关的并发症。 16例患者肿瘤均被全切除。术中估计的出血量为 2 0 0 - 6 0 0 0毫升 ,平均 15 10毫升。结论　多血管性椎体肿瘤的术前栓塞是安全、有效的 ,可明显减少术中出血 ,使肿瘤有更多的机会获得完全切除。超选择插管或血流控制技术的应用可使栓塞更完全、并发症更少 Objective To analyze the technique of preoperative arterial embolization of multi-vessel vertebral body tumor and evaluate its safety and efficacy. Methods Twenty-six patients with vascularized vertebral tumors underwent intra-arterial embolization before surgery. A total of 41 arteries were embolized with a permanent particulate embolization agent, 25 with polyvinyl alcohol (PVA) particles (15 0 - 500 μm) and 16 with dextran granules (150 - 35 0 μm). 31 arteries in the injection of particles plus gelatin sponge pieces for proximal embolization. The embolization effect is evaluated by tumor resection rate and intraoperative blood loss. The results of the particles were injected into the tumor feeding artery through the microcatheter, of which 17 were injected directly into the tumor feeding artery via superselective intubation and 24 were infused through the blood flow control technique. Tumor embolism results: “complete” in 5 cases, “sub-total” in 8 cases, “sub-total” in 2 cases, “partial” in 1 case. No embolization-related complications occurred in all cases. Tumors were removed in 16 patients. Intraoperative blood loss was estimated at 200-600 ml, an average of 15 10 ml. Conclusion The preoperative embolization of the multi-vessel vertebral body tumor is safe and effective, which can reduce the intraoperative bleeding and make the tumor have more chances for complete resection. The use of ultra-selective intubation or blood flow control techniques allows for more complete embolization with fewer complications