牙龈癌侵犯下颌骨SPECT/CT融合显像和CT影像的对照研究  

Comparative Study of SPECT/CT Fusion Imaging and CT in Infil Trated Mandible by Gingival Carcinoma

作　　者：刘洪伟[1] 李宁毅[2] 马建军[1] 李贵昌[1] 

机构地区：[1]山东济宁市第一人民医院口腔颌面外科,272000 [2]青岛大学医学院附属医院口腔颌面外科

出　　处：《肿瘤防治研究》2009年第1期58-59,67,共3页Cancer Research on Prevention and Treatment

摘　　要：目的探讨99mTc-MDP SPECT/CT同机融合图像和CT在牙龈癌浸润下颌骨中的诊断价值比较。方法对18例牙龈癌患者行术前99mTc-MDP SPECT/CT同机融合图像、CT检查,确定牙龈癌侵犯下颌骨的程度,术后病理检查结果与之对照。结果99mTc-MDP SPECT/CT术前诊断18例牙龈癌11例肿瘤部位下颌骨放射性异常浓聚灶,经病理证实其中1例为假阳性;3例中分化鳞癌和2例低分化鳞癌病变部位下颌骨放射性异常浓聚灶,病理显示肿瘤浸润到骨髓腔。而CT仅发现5例肿瘤侵犯下颌骨。结论99mTc-MDP SPECT/CT图像同机融合对牙龈癌浸润下颌骨程度诊断具有重要价值。Objective To evaluate the clinical value of 99mTc methylene diphosphonic acid （MDP） SPECT/ CT fusion imaging and CT scanning in diagnosis of infiltrated mandible by gingival carcinoma. Methods Infiltrated mandible was analyzed in 18 cases of gingival carcinoma by 99mTe-MDP SPECT/CT fusion images and CT, and compared with pathology findings. Results Eleven of 13 cases with welldifferentiated squamous cell carcinoma showed positive images, one of 1 1 cases was false positive images by pathology findings, 10 eases were exhibited infiltrated mandible; 5 cases with moderately differentiated and poorly differentiated squamous cell carcinoma showed positive images, and the result of pathology showed carcinoma cell had infiltrated cavum ossis of mandible. 5 of 18 cases were positive images by CT. Conclusion 99m Tc-MDP SPECT/CT fusion images is an useful method in diagnosis of infiltrated mandible by gingival carcinoma.

关 键 词：牙龈癌 同机融合 SPECT/CT ^99MTC-MDP CT 

分 类 号：R782.2[医药卫生—口腔医学]