正常颞颌关节盘MR解剖学研究  

MR anatomy study of standard temporomandibular joint disc

作　　者：蔡晓莉 宋潇 强永乾[1] CAI Xiaoli;SONG Xiao;QIANG Yongqian(Department of Medical Imaging,the First Affiliated Hospital of Xi'an Jiaotong University,Xi'an 710061,China;Department of Functional Examination,Xi'an Honghui Hospital,Xi'an 710054,China)

机构地区：[1]西安交通大学第一附属医院医学影像科,陕西西安710061 [2]西安市红会医院功能检查科,陕西西安710054

出　　处：《实用放射学杂志》2023年第4期534-538,共5页Journal of Practical Radiology

摘　　要：目的建立正常颞颌关节盘的MR解剖数据,为颞颌关节盘病变的诊断提供参考依据。方法选取行颞颌关节MR检查的患者87例,完成174侧关节MR扫描,排除病变关节盘102侧,研究72侧正常关节盘在MR图像上的位置、形态、厚度及信号特点。结果正常关节盘在斜矢状闭口位质子密度加权像(PDWI)各带厚度:前带(1.750±0.039)mm,中间带(0.719±0.026)mm,后带(2.079±0.049)mm;最大张口位PDWI各带厚度:前带(2.283±0.051)mm,中间带(1.041±0.025)mm,后带(3.117±0.063)mm。斜矢状闭口位PDWI关节盘长度(10.263±0.113)mm、张口位(11.571±0.116)mm。闭口位和张口位各组前、中、后带厚度及长度之间差异有统计学意义(P<0.05),左右侧之间、男女之间各组差异无统计学意义(P>0.05)。结论颞颌关节MRI可清晰显示颞颌关节盘的解剖结构、形态及信号,且以PDWI序列显示最佳。本研究初步建立的正常颞颌关节盘的MR解剖数据,可为颞颌关节临床及影像诊断提供参考依据。Objective To establish MR anatomical data of the standard temporomandibular joint disc to provide a reference basis for diagnosing temporomandibular joint disc diseases.Methods Eighty-seven patients who underwent MR examination of the temporomandibular joint were collected,174 side joint MR image scans were completed,102 side of diseased joint discs were excluded,and the location,morphology,thickness,and signal characteristics of 72 side standard joint discs on MR images were studied.Results Standard temporomandibular joint disc,oblique sagittal closed position proton density weighted image(PDWI)thickness of each band:anterior band(1.750±0.039)mm,middle band(0.719±0.026)mm,posterior band(2.079±0.049)mm,oblique sagittal maximum open position PDWI thickness of each band:anterior band(2.283±0.051)mm,middle band(1.041±0.025)mm,posterior band(3.117±0.063)mm.The joint disc length of PDWI was(10.263±0.113)mm in oblique sagittal closed position and(11.571±0.116)mm in open position.The difference between the thickness and length of the anterior,middle,and posterior bands in the closed and open positions was statistically significant(P<0.05),while the difference between the right and left sides and between men and women was not statistically significant(P>0.05).The differences between the groups were not statistically significant(P>0.05).Conclusion MRI of the temporomandibular joint can clearly show the anatomical structure,shape,and signal of the temporomandibular joint disc,and it is best displayed by PDWI sequences.This study initially established the MR anatomical data of the standard temporomandibular joint disc,providing a reference basis for clinical and imaging diagnosis of temporomandibular joint diseases.

关 键 词：颞颌关节 关节盘 磁共振成像 解剖 

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