Cine-MR for the temporomandibular joints.

MR检查对颞下颌关节病是有效的，关节盘显示了一个软组织和一个髁头、下颌窝以及一个骨的形态和位置关系。检查成像一个开口和两个尴尬的位置，并评估颞颌关节的锻炼。它达到了我对静态的颞颌关节MR检查几乎应该满意的地方，但还不足以诊断颞颌关节的运动。平衡式FFE是一种可连续成像的短时间成像序列，虽然成像时间较短，但仍能获得S/N比值较高的图像。因此，本研究的一个目的是应用一种新的MR序列Balance-FFE，建立颞颌关节的Cine-MR序列，获取颞颌关节的电影图像，并对其进行评价。因此，我评估了髁状突头部的运动量和旋转度。对于结果，没有观察到与症状关系密切的运动量、旋转度。然而，我正在反对一个开放，以至于症状变得可怕，并看到了不稳定的旋转度变化的趋势。这似乎将成为今后评估颞下颌关节病症状的有效方法。

MR inspection to temporomandibular arthrosis is effective, joint discs depict a soft tissue and a condylar head, mandibular fossa and a form and position relations of the bone which went. Inspection images an opening and two positions of embarrassment and evaluates exercise of a temporomandibular joint. It arrives at the place where I should be almost satisfied with about static temporomandibular joint MR inspection, but is insufficient to diagnose movement of a temporomandibular joint. Balanced-FFE that consecutive imaging was possible sequences was developed for a short time and was able to get the image that the S/N ratio was high in spite of being image for a short time recently. Therefore, a purpose of this study applies Balanced-FFE which is a new MR sequence and establishes Cine-MR for the temporomandibular joints and acquires a cine image of a temporomandibular joint and is to evaluate it. Therefore I evaluated quantity of movement and an angle of rotation degree of a condylar head. As for the result, the relations that were close to a symptom and quantity of movement, angle of rotation degree were not watched. However, I was campaigning against an opening so that a symptom became terrible, and the tendency that changed of unstable angle of rotation degree was seen. It seems that this will become an effective method to evaluate a symptom of temporomandibular arthrosis in future.