评估颞下颌关节盘前移位患者髁突骨质的纹理特征改变:基于MRI灰度共生矩阵技术  

Evaluation of the texture characteristics of condyle in patients with anterior disc displacement of temporomandibular disorders:based on MRI gray level co-occurrence matrix technique

作　　者：武玫 陈志晔[1] WU Mei;CHEN Zhiye(Department of Radiology,Hainan Hospital of Chinese PLA General Hospital,Sanya 572013,China)

机构地区：[1]解放军总医院海南医院放射诊断科,海南三亚572013

出　　处：《分子影像学杂志》2025年第1期70-75,共6页Journal of Molecular Imaging

基　　金：海南省自然科学基金(818MS153)。

摘　　要：目的探讨基于MRI灰度共生矩阵技术在量化评估颞下颌关节盘前移位患者早期髁突骨质改变中的价值。方法回顾性收集2019年3月~2022年3月于解放军总医院海南医院行颞下颌关节MRI检查的颞下颌关节紊乱病(TMD)患者60例(120侧关节),按单侧关节盘移位情况分为正常组(NC)、可复性关节盘前移位组(ADDwR)及不可复性关节盘前移位组(ADDwoR),选取闭口位斜矢状位质子密度加权成像序列进行髁突骨质的灰度共生矩阵分析,主要评估参数包括角二阶矩、对比度、自相关、逆差矩及熵。采用Kruskal-Wallis检验、ANOVA方差分析评估3组间的纹理特征差异,采用ROC曲线分析及AUC值评估各参数的诊断性能。结果3组纹理特征参数对比中角二阶矩和熵的差异有统计学意义(P<0.001),其中关节盘前移位组的角二阶矩高于正常组,熵值低于正常组;对比度、自相关及逆差距的差异无统计学意义(P>0.05)。ROC曲线结果显示,纹理特征参数角二阶矩及熵在NC-ADDwoR组、ADDwR-ADDwoR组的AUC均>0.7,其中角二阶矩和熵在NC-ADDwoR组诊断效能最高,截断值分别为1.50、6.49,AUC分别为0.75、0.75,敏感度分别为54.30%、51.40%,特异度分别为90.00%、94.00%。结论MRI灰度共生矩阵纹理特征参数角二阶矩及熵可以量化评估TMD患者髁突骨质的纹理特征改变,对TMD患者早期诊断、治疗及颞下颌骨关节炎的发病机制提供客观的参考依据。Objective To evaluate the early condylar bone changes in patients with anterior disc displacement of temporomandibular joint by using MRI gray level co-occurrence matrix technique.Methods A total of 60 patients(120 joints)with temporomandibular disorders(TMD)who underwent temporomandibular joint MRI examination in Hainan Hospital of Chinese PLA General Hospital from March 2019 to March 2022 were retrospectively collected.According to the unilateral disc displacement,the patients were divided into normal control(NC),anterior disc displacement with reduction(ADDwR)and anterior disc displacement without reduction(ADDwoR).Condylar gray level co-occurrence matrix analysis was performed on the PDWI sequence of oblique sagittal plane in the closed mouth position.Kruskal-Wallis test and one-way analysis of variance were used to evaluate the difference of texture features between groups,and receiver operating characteristic curve analysis was used to evaluate the diagnostic performance of each parameter.Results The angular second moment and entropy of the texture feature parameters of condylar bone were statistically significant(P<0.001).The Angle second moment of the anterior disc displacement group was higher than that of the normal group,and the entropy was lower than that of the normal group.The contrast,correlation,homogeneity were not statistically significant(P>0.05).ROC curve results showed that the AUC of ASM and entropy in the NC-ADDwoR group and ADDwR-ADDwoR group were both>0.7,suggesting that both texture feature parameters had good diagnostic value.Among them,ASM and entropy had the highest diagnostic efficiency in the NCADDwoR group,with the cut off values of 1.50 and 6.49,respectively.The AUC were 0.75 and 0.75,the sensitivity were 54.3%and 51.40%,and the specificity were 90.00%and 94.00%,respectively.Conclusion The texture feature parameters angular second moment and entropy from MRI gray level co-occurrence matrix can quantitatively evaluate the texture feature changes of the condyle bone in TMD patients,

关 键 词：颞下颌关节紊乱病 关节盘前移位 下颌骨髁突 磁共振检查 纹理分析 

分 类 号：R782.6[医药卫生—口腔医学] R445.2[医药卫生—临床医学]