CT-guided radiofrequency ablation of osteoid osteoma in the long bones of the lower extremity  

作　　者：Yoshiki Asayama Akihiro Nishie Kousei Ishigami Daisuke Kakihara Yasuhiro Ushijima Yukihisa Takayama Nobuhiro Fujita Tsuyoshi Tajima Kengo Yoshimitsu Shuichi Matsuda Yukihide Iwamoto Hiroshi Honda 

机构地区：Department of Clinical Radiology,Graduate School of Medical Sciences,Kyushu University,3-1-1 Maidashi,Higashiku,Fukuoka 812-8582,Japan Department of Molecular Imaging and Diagnosis,Kyushu University,3-1-1 Maidashi,Higashi-ku,Fukuoka 812-8582,Japan Department of Diagnostic Imaging and Nuclear Medicine,Tokyo Women’s Medical University,8-1 Kawadacho,Shinjuku-ku,Tokyo 162-8666,Japan Department of Radiology,Fukuoka University,7-45-1 Nanakuma,Jonan-ku,Fukuoka 814-0180,Japan Department of Orthopaedic Surgery,Kyushu University,3-1-1 Maidashi,Higashi-ku,Fukuoka 812-8582,Japan

出　　处：《World Journal of Radiology》2012年第6期278-282,共5页世界放射学杂志（英文版）（电子版）

摘　　要： AIM:To present our initial experience with computed tomography guided radiofrequency ablation(RFA) of osteoid osteoma(OO) in our institution.METHODS:RFA was performed on eight patients(5 males and 3 females) with clinically and radiologically diagnosed OO(femoral neck,n = 4;femoral diaphysis,n = 2;tibial diaphysis,n = 1;fibular diaphysis,n = 1).Ablation was performed using an electrode with a 10-mm exposed tip for a total of 4-6 min at a targeted temperature of 90 degrees Celsius.No cooling system was used.The intervention was accepted as technically successful if the tip of the electrode could be placed within the center of the nidus.We defined clinical success as a disappearance within 2 wk after treatment of symptoms that had manifested at presentation.RESULTS:All procedures were technically successful.No major or immediate complications were observed.Clinical success was achieved in six of eight patients in the first procedure.A second procedure was performed for two patients who had recurrent or continued pain,and one of these cases was successfully treated.The overall rate of success was 87.5%(7/8).No complication was observed.CONCLUSION:Our preliminary results indicate a favorable success rate and no complications and are compatible with the previous reports of RFA of OO.AIM: To present our initial experience with computed tomography guided radiofrequency ablation (RFA) of osteoid osteoma (OO) in our institution. METHODS: RFA was performed on eight patients (5 males and 3 females) with clinically and radiologically diagnosed OO (femoral neck, n = 4; femoral diaphysis, n = 2; tibial diaphysis, n = 1; fibular diaphysis, n = 1). Ablation was performed using an electrode with a 10-mm exposed tip for a total of 4-6 min at a targeted temperature of 90 degrees Celsius. No cooling system was used. The intervention was accepted as technically successful if the tip of the electrode could be placed within the center of the nidus. We defined clinical success as a disappearance within 2 wk after treatment of symptoms that had manifested at presentation. RESULTS: All procedures were technically successful. No major or immediate complications were observed. Clinical success was achieved in six of eight patients in the first procedure. A second procedure was performed for two patients who had recurrent or continued pain, and one of these cases was successfully treated. The overall rate of success was 87.5% (7/8). No complication was observed. CONCLUSION: Our preliminary results indicate a favorable success rate and no complications and are compatible with the previous reports of RFA of OO.

关 键 词：Ablation OSTEOID OSTEOMA COMPUTED TOMOGRAPHY 

分 类 号：R738[医药卫生—肿瘤]