The investigation of lateral atlantoGdental interval of normal atlantoGaxial joint in children by MSCT and its MPR techniques
10.3969/j.issn.1002-1671.2019.10.024
- VernacularTitle: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
- Author:
Dongfei LI
1
;
Wei FENG
Author Information
1. 苏州大学附属儿童医院影像科
- Keywords:
computed tomography;
multiplanar reconstruction;
atlanto-axial joint;
lateral atlanto-dental interval
- From:
Journal of Practical Radiology
2019;35(10):1651-1653
- CountryChina
- Language:Chinese
-
Abstract:
Objective To measure the lateral atlanto-dental 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-dental interval (VBLADI).Results There were 1 25 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 VBLADI 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 children.Subluxation 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.
