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
WU Mei
CHEN Zhiye
Abstract：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 NC-ADDwoR 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,providing objective reference for the early diagnosis,treatment and pathogenesis of TMD.
Keywords：temporomandibular disordersanterior disc displacementmandibular condyleMRItexture analysis
Publication Date：2025-01-27
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 70-75 )