Assessment and comparison of the capsular width of temporomandibular joint on ultrasonography and magnetic resonance imaging

Priyanka U Sakhavalkar; Ajay R Bhoosreddy; Hemant J Kotwal

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Assessment and comparison of the capsular width of temporomandibular joint on ultrasonography and magnetic resonance imaging

机译：超声和磁共振成像对颞下颌关节囊宽度的评估和比较

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Aims and Objectives: Purpose of this study was to evaluate the reliability and clinical usefulness of ultrasonography (USG) and magnetic resonance imaging (MRI) in temporomandibular joint (TMJ) imaging. Materials and Methods: By USG and MRI the distance between the most lateral point of the articular capsule and the most lateral point of the mandibular condyle (lateral capsule-condyle distance) was measured, and both the values were compared in normal asymptomatic volunteers as well as in patients with temporomandibular disorders (TMDs) in both open and closed mouth positions. A total of 40 joints were analysed in which 19 were asymptomatic and 21 were joints with TMD. Capsular width of TMJ was measured and compared in normal and joints with TMD joints using unpaired t test. Widths were also compared in images obtained with MRI and USG. Karl Pearson's correlation coefficient was calculated to find out if there exists any relationship between the capsular width measured with MRI and USG. Results: Results show that both the modalities viz. MRI as well as USG are effective in differentiating the capsular width of normal joints to that of joints with TMD joints. Although capsular widths obtained with MRI and USG are not equal, they are positively correlated. Conclusion: USG can be used for the preliminary investigation of patients with TMD.

机译：目的和目的：本研究的目的是评估超声检查（USG）和磁共振成像（MRI）在颞下颌关节（TMJ）成像中的可靠性和临床实用性。材料和方法：通过USG和MRI，测量关节囊最外侧点与下颌con最外侧点之间的距离（外侧囊-距离），并在正常无症状志愿者中比较这两个值就像在开口和闭合嘴位的颞下颌关节疾病（TMD）患者中一样。共分析了40个关节，其中19例无症状，21例患有TMD。测量了TMJ的囊膜宽度，并使用未配对t检验比较了正常关节和TMD关节的关节。还比较了在MRI和USG获得的图像中的宽度。计算卡尔·皮尔森（Karl Pearson）的相关系数，以查明用MRI和USG测量的囊宽度之间是否存在任何关系。结果：结果表明两种方式均有效。 MRI和USG可有效区分正常关节的囊宽度与TMD关节的囊宽度。尽管通过MRI和USG获得的包膜宽度不相等，但它们是正相关的。结论：USG可用于TMD患者的初步研究。

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《Journal of Indian Academy of Oral Medicine and Radiology》 |2016年第4期|共7页
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Priyanka U Sakhavalkar; Ajay R Bhoosreddy; Hemant J Kotwal;
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Assessment and comparison of the capsular width of temporomandibular joint on ultrasonography and magnetic resonance imaging

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