Cine-MR for the temporomandibular joints.

用于颞下颌关节的 Cine-MR。

• 批准号: 17591968
• 负责人: YAMADA Toshiro
• 金额: $ 2.24万
• 依托单位: Nagasaki University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17591968/
• 关键词: MR; temporomandibular arthrosis; Balanced-FFE; Balanced-FFE; MR顎関節動態検査法; MRI高速撮像法

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.

磁共振检查对颞下颌关节病是有效的，关节盘显示软组织与髁突头、下颌窝及所行骨质的形态和位置关系。检查图像的开放和两个位置的尴尬和评价运动的颞下颌关节。它达到了我应该对静态颞下颌关节MR检查几乎满意的地方，但不足以诊断颞下颌关节的运动。可以连续成像的平衡FFE序列是在短时间内开发的，尽管最近成像时间很短，但仍能够获得S/N比很高的图像。因此，本研究的目的是应用新的MR序列Balanced-FFE，建立颞下颌关节的电影MR，获取颞下颌关节的电影图像，并对其进行评价。因此，我评价了髁突头的运动量和旋转角度。结果未观察到症状与运动量、旋转角度的关系。然而，我正在反对一个开放的运动，所以症状变得可怕，并且看到了旋转角度不稳定的变化趋势。这将成为今后评价颞下颌关节病症状的一种有效方法。