无线整合型MRI信号放大器高清成像评估颞下颌关节紊乱病患者翼外肌附着类型与关节盘位置的相关性研究

Evaluation of the relationship between the attachment type of lateral pterygoid muscle and the position of temporomandibular joint disc in patients with temporomandibular joint disorders based on wireless amplified MRI detector high resolution imaging

目的探讨无线整合型MRI信号放大器(wireless amplified MRI detector,WAND)耦合常规头颈联合线圈行颞下颌关节(temporomandibular joint,TMJ)高清成像,评估颞下颌关节紊乱病(temporomandibular disorders,TMD)患者翼外肌附着类型与颞下颌关节盘位置的相关性。方法收集2019年10月至2022年1月经贵州省人民医院口腔颌面外科诊断为TMD的患者85例(共160侧TMJ),其中男性16例,女性69例,年龄(32.7±14.2)岁(16~80岁),所有纳入对象均行张、闭口斜矢状位以及冠状位WAND耦合头颈联合线圈双侧TMJ高清扫描。基于TMJ及翼外肌高清成像,对比分析TMD患者翼外肌附着类型与TMD患者关节盘位置,采用χ^(2)检验和Pearson相关性分析二者的相关性。结果翼外肌附着类型存在3种,Ⅰ型共51侧[31.9%(51/160)],Ⅱ型共77侧[48.1%(77/160)],Ⅲ型共32侧[20.0%(32/160)];TMD患者翼外肌不同附着类型与关节盘位置存在强相关(χ^(2)=28.20,P=0.002,r=0.776);不同附着类型翼外肌与关节盘是否可复性移位之间无显著相关(χ^(2)=0.24,P=0.887,r=0.825)。结论TMD患者翼外肌不同附着类型与关节盘位置之间存在相关,WNAD耦合常规头颈联合线圈TMJ高清扫描可为TMD患者在评估翼外肌附着类型及关节盘位置提供可靠影像学证据。

Objective To explore the correlation between the attachment type of lateral pterygoid muscle(LPM)and the position of temporomandibular joint(TMJ)disc in patients with temporomandibular disorders(TMD)by using wireless amplified magnetic resonance imaging detector(WAND)coupled with conventional head and neck joint coil for high resolution imaging of TMJ.Methods Eighty-five patients with TMD diagnosed by oral and maxillofacial surgeons of Guizhou Provincial People′s Hospital from October 2019 to January 2022 were collected.A total of 160 TMJ were included.There were 16 males and 69 females,aged(32.7±14.2)years.All patients were scanned with open,closed oblique sagittal and coronal WAND coupled head and neck coils with bilateral TMJ.Based on TMJ and LPM high resolution imaging,to explore the correlation between LPM attachment types and the position of TMJ disc in TMD patients,and to evaluate the potential clinical value of LPM attachment types in TMD patients.χ^(2) test and Pearson correlation analysis were used to evaluate the correlation between LPM attachment type and TMJ disc location.Results There were three types of LPM attachment:typeⅠin 51 cases[31.9%(51/160)],typeⅡin 77 cases[48.1%(77/160)]and typeⅢin 32 cases[20.0%(32/160)].There was a significant correlation between the type of LPM attachment and the position of articular disc(χ^(2)=28.20,P=0.002,r=0.776).There was no statistical significance between the type of LPM attachment and the reversible displacement of articular disc(χ^(2)=0.24,P=0.887,r=0.825).Conclusions There is a correlation between the attachment type of LPM and the position of the disc in TMD patients.WNAD coupled with conventional head and neck joint coil TMJ high resolution scan can provide reliable imaging evidence for TMD patients in evaluating the type of LPM attachment and the location of disc.