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目的：比较在C T三维重建或C型臂引导下行三叉神经射频热凝术的疗效及安全性。方法选取我科收治的40例患者，采用入院顺序单双号将患者分为A、B两组，每组各20名患者。A组、B组患者分别在CT三维重建、C型臂引导下行三叉神经射频热凝术。观察术中穿刺次数，患者的手术疗效及并发症情况。结果术后 VAS 评分较术前明显降低（P0.05）。A 组第一针入孔率较 B 组明显提高（P<0.05）。B组并发症发生率明显高于A组（P<0.05）。结论两组方法疗效相同，CT三维重建引导穿刺可以使第一针入孔率明显提高，显著降低并发症的发生。“,”Objective: to investigate effect and securityofusing CT 3D imaging with c-arm to guide in radiofrequency thermocoagulation. Method: According to single and double,40 patients were selected as the research object,whichwere divided into observation group(A) and control group(B), with 20 cases in each group. Observation group(A)usedCT 3D imaging to guide to puncture the foramen ovale, while the control group(B)used c-arm. Thenumbers of puncture, the effect ofoperation and thecomplicationswere compared.Result: After operation the VAS-scoreof two group has significant decreased(P0.05). Inobservation group(A),the rate of first puncture to access the foramen ovale were statisticalyhigher than the control group(B).Atthe same time, the total incidence of postoperative complications of observation group(A) has significant decreased(P<0.05).Conclusion: Both of two ways to guide to puncture can havehigh quality effect, but puncturing guided with the CT 3D imaging can improve the rate of first puncture to access and outstandingreducethe incidence of postoperative complications.