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目的探讨多排螺旋CT(mu ltislice helical CT,MSCT)在颞颌关节(temporom and ibu lar joint,TM J)形态研究中的应用价值。方法MSCT对10具尸体,30名志愿者共80侧TM J扫描,在多层面后重建(mu ltip lanar reform ation,MPR)图像上,测量TM J骨性形态参数、关节盘厚度、关节间隙,对尸体TM J进行解剖测量,结果用SPSS软件分析。结果TM J MPR图像骨皮质边界清晰,关节间隙显示清楚,关节盘依稀可辨,TM J骨性形态参数2种测量结果间有显著的正相关关系,关节盘厚度2种方法间有较大的正相关关系,获得了正常TM J形态的参考值。结论MSCT配合MPR技术,可以全面、精确地测量TM J的骨性形态,准确地测量关节间隙,粗略地测量关节盘的厚度。
Objective To investigate the value of multi-slice spiral CT (MSCT) in the morphological study of temporomandibular joint (TMJ). Methods MSCT was performed on 80 CT images of 10 corpses and 30 volunteers. The bone morphological parameters of TMJ, articular disk thickness, joint space, The body TMJ was dissected and the results were analyzed by SPSS software. Results TMJ MPR images showed a clear cortical boundary, a clear joint space, a clear discernment of the disc, and a significant positive correlation between TMJ bone morphological parameters and measurement results. The thickness of the disc between the two methods was larger Positive correlation, access to the normal TM J form reference value. Conclusion MSCT combined with MPR technique can measure TMJ bone shape accurately and accurately, measure joint space accurately and roughly measure the thickness of articular disk.