多层螺旋CT多平面重建技术对儿童正常寰枢椎齿突侧块间隙的研究  

The investigation of lateral atlanto-dental interval of normal atlanto-axial joint in children by MSCT and its MPR techniques

作　　者：李冬飞[1] 冯巍 LI Dongfei;FENG Wei(Department of Radiology, the Affiliated Children' s Hospital of Soochow University, Suzhou 215003,China)

机构地区：[1]苏州大学附属儿童医院影像科,江苏苏州215003

出　　处：《实用放射学杂志》2019年第10期1651-1653,共3页Journal of Practical Radiology

摘　　要：目的通过MSCT MPR技术测量儿童正常寰枢椎齿突侧块间隙(LADI),探讨其临床意义。方法将207例儿童中立位鼻窦CT平扫的图像进行MPR冠状面重建,测量双侧LADI及双侧齿突侧块间隙差值(VBLADI),并进行对照分析。结果男125例,女82例,前者双侧LADI均大于后者,差异有统计学意义(P<0.05),前者VBLADI大于后者,差异无统计学意义(P>0.05);<7岁组126例,≥7岁组81例,前者双侧LADI均大于后者,差异无统计学意义(P>0.05),前者VBLADI大于后者,差异有统计学意义(P<0.05)。结论正常儿童双侧LADI不对称常见,双侧VBLADI≥3 mm可认为可疑半脱位,当出现这种情况时,需要结合临床及进一步检查以明确诊断。Objective To measure the lateral atlanto-dcntal interval (LADI) of normal atlanto-axial joint in children by MSCT and its MPR techniques, to explore its clinical significance.Methods We performed MPR coronal reconstruction for 207 original images of paranasal sinus scanned in neutral position, measure and compare the bilateral LADI and the variance of bilateral lateral atlanto-dcntal interval (VBLADI).Results There were 125 males and 82 females,the LADI of the former was larger than that of the latter,and there was significant difference between them (P<0.05),the VBL ADI of the former was larger than that of the latter,and there was no significant difference between them (P>0.05).There were 126 cases younger than 7 years-old,while 81 cases older than or equal to 7 years-old,the bilateral LADI of the former was larger than that of the latter (P>0.05),while the VBLADI of the former was larger than that of the latter (P<0.05).Conclusion The asymmetry of bilateral LADI is common in normal childreruSubluxation is generally considered suspicious if the VBLADI is larger than or equal to 3 mm,when this occurs,the clinician need to combine the clinical feature and do further examination to make a clarify diagnosis.

关 键 词：计算机体层成像 多平面重建 寰枢椎 齿突侧块间隙 

分 类 号：R814.42[医药卫生—影像医学与核医学] R322.81[医药卫生—放射医学]