A study on development of functional diagnosis of Temporomandibular joint by 3.0T pseudodynamic magnetic resonance imaging.

基于3.0 T伪动力MRI的轨迹和速度模式确定了受累侧，并确定了Cd以及Da和Dp的发病率程度。椎间盘前移位（有复位和不复位）和关节盘病理结构改变（如粘连和穿孔）的典型异常运动模式可以被识别。根据图像中区域的定义程度对Da和Dp模糊度进行分级，识别髁突相对于关节盂窝和关节突的位置，观察Dp轮廓型在开口处的变化，有助于诊断TMJ异常。SR-CAD系统的结果优于朴素贝叶斯系统和贝叶斯网络系统的结果。3.0T TMJ MRI对骨改变和椎间盘移位的诊断效率为100%。

Trajectory and velocity patterns based on 3.0 T pseudodynamic MRI identified the affected side and determined the extent of morbidity in the Cd as well as the Da and Dp. The typical abnormal movement pattern of discs with anterior displacement (with and without reduction) and pathological structural changes of the articular disc (such as adhesion and perforation) could be identified. Grading of Da and Dp obscurity based on how well the areas were defined in the images, identifying the condylar positions in relation to the glenoid fossa and articular eminences, and observing the changes in Dp contour types at opening were useful for diagnosing TMJ abnormalities. Results obtained by SR-CAD system were superior to results obtained by the Naive Bayes system and the Bayesian network system. In cases of 3.0T TMJ MRI, bone changes and disc displacement were diagnosed with efficiency of 100%.