Application of 3.0T MR T2 mapping in the diagnosis of early temporomandibular joint dysfunction
10.3969/j.issn.1002-1671.2023.12.022
- VernacularTitle:3.0T MR T2 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
- Author:
Haiyu ZHANG
1
;
Yutao YAN
;
Shuo ZHANG
;
Yuebin WANG
Author Information
1. 联勤保障部队第九八八医院影像医学科,河南 郑州 450042
- Keywords:
temporomandibular joint;
articular disc;
magnetic resonance imaging
- From:
Journal of Practical Radiology
2023;39(12):2009-2012,2017
- CountryChina
- Language:Chinese
-
Abstract:
Objective To quantitatively study the pathological characteristics of the joint disc in the early stage of temporomandibular joint dysfunction based on 3.0T MR T2 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 T2 mapping scanning in open and closed mouth positions,the T2 mapping pseudo-color images of the temporomandibular joint disc was observed,and the T2 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 T2 mapping values of the above sites were compared between and within the two groups.Results The T2 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 T2 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 T2 mapping values between the control group and the experimental group in the observation areas of the bilateral tem-poromandibular joint disc at the open and closed positions(P＞0.05).Conclusion The 3.0T MR T2 mapping can be used to quantitatively assess the joint disc injury of temporomandibular joint dysfunction in the early stage,and the value of T2 mapping in the middle band of the disc in the experimental group is higher than that in other observation areas.
