MRI诊断颞下颌关节紊乱症的价值

目的分析颞颌下关节紊乱症(Temporomandibular Joints Dysfunction Syndrome,TMDS)患者的MRI表现,探讨MRI对颞下颌关节紊乱症的诊断价值。方法收集经临床确诊的颞颌关节紊乱症患者27例,完成54侧颞颌关节T1WI、T2WI、T1-3DWATS冠状位、矢状位及矢状张闭口位PDW-Movie成像,观察颞颌关节紊乱症患者颞颌关节健患侧的MR表现。结果健侧7例关节盘形态异常,3例关节盘前移,张口位时恢复正常,18例可见关节腔积液。患侧21例关节盘形态位置异常,21例髁突运动异常,8例翼外肌内可见异常信号,24例关节腔内可见积液。关节盘位置形态、髁状突运动异常健患侧之间有显著性差异。PDW-Movie矢状张闭口位还可以观察到关节盘移位程度和髁状突的异常运动。结论 MRI能全面地观察颞颌关节紊乱症患者关节结构和形态的变化,是检查诊断颞下颌关节紊乱症重要、可靠的影像学方法。

The Diagnostic Value of MRI in Patients with Temporomandibular Joints Dysfunction Syndrome

Objective To evaluate the diagnostic value of MRI in patients with TMDS.Methods Collected the clinically diagnosed patients with TMDS 27 cases and completed 54 lateral TMJ imaging,T1WI,T2WI.T13D-WATS-COR-SAG Scan sequence and PDW-Movie open-close sequence were used to observe the MRI performance of disorder joint and normal joint.Results Normal joint has 7 cases of articular disc shape abnormal,3 cases of articular disc position forward,open sequence back to normal,18 cases of visible joint effusions.Disord...