3.0T MR T_(2)mapping在诊断早期颞下颌关节功能紊乱病关节盘损伤中的应用  

Application of 3.0T MR T_(2)mapping in the diagnosis of early temporomandibular joint dysfunction

作　　者：张海宇 闫宇涛 张烁 王跃斌 ZHANG Haiyu;YAN Yutao;ZHANG Shuo;WANG Yuebin(Department of Medical Imaging,No.988 Hospital of the Joint ServiceLogistic Support Force of PLA,Zhengzhou 450042,China)

机构地区：[1]联勤保障部队第九八八医院影像医学科,河南郑州450042

出　　处：《实用放射学杂志》2023年第12期2009-2012,2017,共5页Journal of Practical Radiology

基　　金：河南省医学科技攻关计划科研项目(LHGJ2020784)。

摘　　要：目的基于3.0T MR T_(2)mapping技术定量评估颞下颌关节功能紊乱病早期关节盘的损伤性改变。方法选取经临床确诊早期颞下颌关节功能紊乱病患者90例,其中对照组30例,实验组60例。90例患者均行张口位及闭口位常规3.0T MR及T_(2)mapping扫描,观察颞下颌关节盘T_(2)mapping伪彩图,定量测量颞下颌关节盘前伸部、前带、中带、后带、双板区上板、下板等处的T_(2)mapping值,比较2组间及组内上述各部位T_(2)mapping值差异。结果实验组张口位及闭口位双侧颞下颌关节盘前伸部、前带、中带、后带、双板区上板、下板等处的T_(2)mapping值均明显高于对照组(P<0.05)。实验组张口位及闭口位关节盘中带T_(2)mapping值均高于其余各区(P<0.05)。对照组和实验组张口位及闭口位双侧颞下颌关节盘各观察区域的T_(2)mapping值比较,差异无统计学意义(P>0.05)。结论3.0T MR T_(2)mapping可早期定量评估颞下颌关节功能紊乱病关节盘损伤,实验组关节盘中带T_(2)mapping值高于其他观察区域。Objective To quantitatively study the pathological characteristics of the joint disc in the early stage of temporomandibular joint dysfunction based on 3.0T MR T_(2)mapping technology.Methods There were 90 patients in the study,including 30 in the control group and 60 in the experimental group.All patients were clinically diagnosed with early temporomandibular joint dysfunction.The 90 patients underwent conventional 3.0T MR and T_(2)mapping scanning in open and closed mouth positions,the T_(2)mapping pseudo-color images of the temporomandibular joint disc was observed,and the T_(2)mapping values at the anterior extension,anterior,middle,posterior bands of the temporomandibular joint disc,as well as the upper and lower plates of the double plate area were quantitatively measured.The T_(2)mapping values of the above sites were compared between and within the two groups.Results The T_(2)mapping values in the anterior extension,anterior band,middle band,posterior band,upper plate and lower plate of the bilateral temporomandibular joint disc in the open and closed positions of the experimental group were significantly higher than those in the control group(P<0.05).The T_(2)mapping values in the open and closed positions of the experimental group were higher than those in other areas(P<0.05).There was no significant difference in T_(2)mapping values between the control group and the experimental group in the observation areas of the bilateral temporomandibular joint disc at the open and closed positions(P>0.05).Conclusion The 3.0T MR T_(2)mapping can be used to quantitatively assess the joint disc injury of temporomandibular joint dysfunction in the early stage,and the value of T_(2)mapping in the middle band of the disc in the experimental group is higher than that in other observation areas.

关 键 词：颞下颌关节 关节盘 磁共振成像 

分 类 号：R684.8[医药卫生—骨科学] R445.2[医药卫生—外科学]