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

本研究应用磁共振成像（MRI）对颞下颌关节病患者咀嚼肌疼痛进行了研究。成像序列通过磁化传递对比度（MTC）方法对其进行成像，并检查磁化传递比（MTR）。作为结果，我拍摄了2%，4%，6%，8%，10%的琼脂，我用琼脂的基础实验，并测量了MTR，因为10%的琼脂是昂贵的，和水量增加，它降低，2%的琼脂是最低的。MTR受含水率控制，建议降低MTR，使含水率增加.我打算为一名志愿者和颞下颌关节病患者，他们呼吁一侧咬肌疼痛，并检查磁化传递比（MTR）。我认识到的差异，即位移和变化的差异，疼痛侧和非疼痛侧的咬肌MTR的偏侧志愿者和咬肌MTR的颞下颌关节炎患者。MTR反映了尖锐疼痛侧咬肌的组织病理学，并建议I可用于咬肌的图像检查。当我受到含水量的影响时，MTR比我使用琼脂的基本实验发生变化，含水量增加，MTR下降。颞下颌关节病患者痛侧咬肌张力较非锐痛侧有降低趋势。据此提出存在着让痛侧咬肌组织中游离水增多的病态改变。换句话说，似乎在T2WI上考虑了我无法描述的水肿等病变的存在，并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.