Imaging of pain by MRI-About the muscle of mastication in the temporomandibular arthrosis-

本研究通过MRI检查了颞下颌关节病患者咀嚼肌痛的情况。成像序列通过磁化传递对比度(MTC)方法对其进行成像，并与提供的图像进行磁化传递比(MTR)的检测。由于我用琼脂做的基础实验拍摄了2%、4%、6%、8%、10%的琼脂，并测量了MTR，因为10%的琼脂价格昂贵，加水量增加，它就降低了，其中2%的琼脂最低。MTR受含水率控制，建议降低MTR，提高含水率。我的研究对象是一位志愿者和一位因疼痛而向一侧咬肌诉求并检查磁化转移率(MTR)的颞下颌关节病患者。我认识到的区别是志愿者咬肌MTR的疼痛侧和非疼痛侧的差异，以及颞下颌关节病患者咬肌MTR的差异。MTR反映了尖锐疼痛侧咬肌的组织病理学，提示我在按摩师的图像检查中是有用的。当我受到水分的影响时，MTR比我使用琼脂进行的基础实验发生了变化，水分含量增加，MTR降低。颞下颌关节病患者疼痛侧咬肌MTR与非尖锐疼痛侧相比呈下降趋势。存在病态改变，让疼痛侧咬肌组织中的游离水增加，因此提出了这一点。换句话说，在T2WI上似乎考虑到了我无法描述的水肿症等病变的存在，而且病变可能与疼痛的出现有关。

This study examined the pain of the masticatory muscles in the temporomandibular arthrosis with MRI. The imaging sequence imaged it by Magnetization Transfer Contrast (MTC) method and examined Magnetization Transfer Ratio (MTR) than a provided image.1. As a result of I photographed 2%, 4%, 6%, 8%, agar of 10% by the fundamental experiment that I used agar for, and having measured MTR, as 10% agar was expensive, and quantity of water increased, it lowered, and 2% agar was low most. MTR was controlled by moisture content, and it was suggested that it lowered so that moisture content increased.2. I intended for a volunteer and the temporomandibular arthrosis patient who appealed to a masseter muscle of one side for pain and examined Magnetization Transfer Ratio (MTR). I recognized the difference that was shifts and changes to a difference of the pain side and the non-pain side of laterality of masseter muscle MTR in a volunteer and masseter muscle MTR in a temporomandibular arthrosis patient. MTR reflected histopathology of a sharp pain side masseter muscle, and it was suggested that I was useful in image inspection of a masseter.When I was influenced by moisture content, and MTR changed than the fundamental experiment that I used agar for, and moisture content increased, MTR decreased. Masseter muscle MTR of the pain side of the temporomandibular arthrosis patient showed a low tendency in comparison with the non-sharp pain side. The existence of the morbid change to let free water in the pain side masseter muscle organization increase as for this was suggested. In other words it seemed that the existence of the lesion such as the edema that I cannot depict was thought about in T2WI, and the lesion might be connected with the appearance of the pain.