1 Department of Dentomaxillofacial Radiology, Dentistry Faculty, Ankara University , Ankara , Turkey.
Dentomaxillofac Radiol. 2019 Jul;48(5):20180349. doi: 10.1259/dmfr.20180349. Epub 2019 Feb 28.
To assess the effectiveness of a high resolution ultrasound for temporomandibular joint (TMJ) evaluation in comparison to MRI in patients with TMJ disorders.
Our study comprised 50 patients (35 female and 15 male) with a mean age of 30.61. Clinical examination was performed. Bilateral imaging of TMJ was conducted by using a high-resolution ultrasound and 1.5 Tesla MR. Diagnostic accuracy of ultrasound was assessed for disc displacement and joint effusion in comparison to MRI. Sensitivity (Se), specificity (Sp), positive predictive value (PPV), negative predictive value (NPV), and accuracy (Ac) were calculated for ultrasound. Measurements were compared by Bland & Altman and intraclass correlation coefficient (ICC). Significance level was set at < 0.05.
Most frequent complaints were noise 42 (84%) and 34 (68%) pain. For disc position assessment with ultrasound for both sides and closed-open mouth, sensitivity, specificity, PPV, NPV and accuracy ranged between, 0.88 - 1, 0.60 - 0.87, 0.70 - 0.97, 0.75 - 1, and 0.84 - 0.98, respectively. For the diagnosis of effusion with ultrasound for both sides, sensitivity, specificity, PPV, NPV and accuracy ranged between 0.65 - 0.81, 0.91 - 1, 0.96 - 1, 0.45 - 0.46 and 0.72 - 0.84, respectively. ICC values calculated for intraobserver agreement for right and left TMJ for all measurements were found to be statistically significant ( < 0.001). ICC values ranged between 0.964 and 0.995 suggesting excellent correlation among ultrasound and MRI. In general, for ultrasound measurements we found a mean difference ranging between -0.182 and +0.130 mm in comparison to MRI.
Ultrasound can be suggested as an adjunct to common imaging modalities in the assessment of TMJ.
评估高分辨率超声（HRUS）在颞下颌关节（TMJ）评估中的有效性，并与 MRI 进行比较，以评估 TMJ 疾病患者的 TMJ 。
我们的研究包括 50 名患者（35 名女性和 15 名男性），平均年龄为 30.61 岁。进行临床检查。使用高分辨率超声和 1.5T MR 对 TMJ 进行双侧成像。将超声诊断的准确性与 MRI 进行比较，以评估关节盘移位和关节积液。计算超声的灵敏度（Se）、特异性（Sp）、阳性预测值（PPV）、阴性预测值（NPV）和准确性（Ac）。通过 Bland & Altman 和组内相关系数（ICC）比较测量值。显著性水平设置为 < 0.05。
最常见的症状是 42 例（84%）和 34 例（68%）的噪音和疼痛。对于双侧和闭口-开口状态下的关节盘位置评估，超声的敏感性、特异性、PPV、NPV 和准确性分别为 0.88-1、0.60-0.87、0.70-0.97、0.75-1 和 0.84-0.98。对于双侧关节积液的超声诊断，敏感性、特异性、PPV、NPV 和准确性分别为 0.65-0.81、0.91-1、0.96-1、0.45-0.46 和 0.72-0.84。对于右 TMJ 和左 TMJ 的所有测量值，计算出的观察者内一致性的 ICC 值均具有统计学意义（ < 0.001）。ICC 值范围为 0.964 至 0.995，表明超声和 MRI 之间存在极好的相关性。总体而言，与 MRI 相比，超声测量的平均差值范围在-0.182 至+0.130mm 之间。
超声可作为 TMJ 评估中常规成像方式的辅助手段。
