Quantifying Synovial Enhancement of the Pediatric Temporomandibular Joint.

Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons(2016)

引用 25|浏览16
暂无评分
摘要
PURPOSE:The purposes of this study were to assess a novel method for quantifying temporomandibular joint (TMJ) synovial enhancement on gadolinium-enhanced magnetic resonance imaging (MRI) and to establish normative values to allow early detection of synovitis. MATERIALS AND METHODS:This is a retrospective cohort study of pediatric patients (aged 0 to 16 years) without jaw pathology who underwent MRI scans with contrast that included the TMJs. From a coronal T1-weighted image, the signal intensity within the superior and inferior joint spaces was divided by the signal intensity of the longus capitis muscle to establish a ratio by age. Intrarater reliability and inter-rater reliability were assessed. A mixed-model regression analysis was used to determine the 95% specificity threshold for normal ratios. RESULTS:Temporal and optic nerve MRI scans of 158 patients were included. Normative synovial enhancement ratios (95% specificity) thresholds were established: 1.52, 1.68, and 1.55 for superior joint space, inferior joint space, and average of both joint spaces, respectively. Intrarater and inter-rater agreement was excellent. CONCLUSIONS:A ratio of signal intensity of the TMJ synovium to the longus capitis is a reliable method to quantify enhancement controlling for time after contrast infusion and may be useful for diagnosis of TMJ synovitis.
更多
查看译文
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要