摘要
目的 采用单光子发射型（single-photo Emission CT,SPECT）CT/CT同机融合骨显像技术对成人骨性下颌偏斜患者与正常人下颌骨及颞下颌关节的生长差异进行比较研究.方法 选取成人骨性下颌偏斜患者20例和正常成人志愿者15例,进行SPECT/CT同机融合骨扫描检查,以分析比较下颌偏斜患者与正常人两侧下颌骨及颞下颌关节骨血流和骨代谢的差异性.结果 成人骨性下颌偏斜患者下颌骨不同部位的骨血流和骨代谢存在特定性差异,正常人下颌骨不同部位的骨血流和骨代谢存在特定性差异;正常人下颌骨不同部位左右两侧放射性计数值比值均接近于1,对称性较好;与正常对照组相比,骨性下颌偏斜患者放射性强度均为对侧高于偏斜侧;髁状突差异最大（P＜0.01）,其次为下颌角（P＜0.01）,下颌升支中份差异最小（P＜0.05）;不同部位两侧差异均有统计学意义.结论 SPECT/CT同机融合骨显像在精确解剖定位的基础上,能更加准确显示颞下颌关节的功能变化.
Objective To investigate mandible and temporomandibular joint （TMJ） in adults with and without mandible deviation using SPECT/CT fusion imaging. Methods SPECT/CT fusion imaging over bilateral mandible and TMJ was performed in 20 adult patients with mandibular deviation and 15 adult volunteers without mandibular deviation. Results Compared with the control group, the radioactive intensity of contralateral side was higher than that of the deviated side in patients with mandibular deviation. The biggest difference was found in the condyle process （P〈0. 01） and the mandibular angle （P〈0. 01）. Conclusions Based on accurate anatomical localization, SPECT/CT fusion imaging was very sensitive in detecting functional alteration in TMJ.
出处
《中华口腔正畸学杂志》
2011年第1期22-26,共5页
Chinese Journal of Orthodontics
