慢性张口弹响青年人颞下颌关节MRI研究  

MR imaging of the chronic clicking temporomandibular joints

作　　者：范翔[1] 刘筠[2] 王萍[3] 郝彩仙[2] 许亮[2] 刘振兴[2] 

机构地区：[1]天津医科大学研究生院,天津300070 [2]天津市人民医院影像学部 [3] 滨州医学院附属医院

出　　处：《实用放射学杂志》2015年第3期368-371,共4页Journal of Practical Radiology

摘　　要：目的：分析慢性张口弹响青年人颞下颌关节（TMJ）MRI表现。方法对10例慢性张口弹响青年人（12个弹响 TMJ）及30例无症状青年志愿者（60个无症状TMJ）行TMJ 张、闭口斜矢状面MR PDWI扫描。对获得的2组图像进行对照分析。结果与对照组相比，弹响组非双凹形关节盘、关节盘内稍高信号、髁突异常、关节积液、关节盘前移位、“Drace”角均较高或较多，差异均存在统计学意义（P＜0.05）。结论 MRI检查可反映慢性张口弹响青年人 TMJ 异常表现，并在一定程度上为临床诊治提供客观的影像学依据。Objective To analyse the MRI characteristics of the chronic clicking temporomandibular joints（TMJs）.Methods 20 TMJs in 10 young chronic clicking individuals （12 clicking TMJs）and 60 TMJs in 30 young healthy volunteers were examined by MRI scanner, and sagittal oblique opened-mouth and closed-mouth position images were observed.Then comparing the MRI findings of the acquired j oints between two groups.Results The ratio of the non-double concave articular disc,slightly high signal intensity in the articular disc, abnormal changes of the condyle,articular fluid,anterior displacement of the articular disc,and increased＆quot;Drace＆quot;angles in the clicking group were significantly higher than those in the control group（P〈0.05）.The result revealed statistically significant differences.Conclusion The MRI anatomical characteristics can be an indicator for the TMJ anomalys,and provide an obj ective radiological basis for clinical diagnosis and treatment to some extent.

关 键 词：颞下颌关节 关节盘 弹响 磁共振成像 

分 类 号：R816.1[医药卫生—放射医学] R445.2[医药卫生—临床医学]