Blood-flow of the TMJ region after MRI examination with wide mouth opening

张口MRI检查后TMJ区域血流

• 批准号: 13671987
• 负责人: FUJISHITA Masami
• 金额: $ 0.32万
• 依托单位: Asahi University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13671987/
• 关键词: Temporomandibular joint; Masseter muscle; Doppler ultrasonography; MRI; Blood-flow

In the MRI examination of the temporomandibular joint (TMJ), continuous mouth opening about 10 minutes is needed to obtain static images in mouth opening position. The mechanical and psychological stress by the wide and continuous opening of the mouth may cause TMJ symptoms such as muscle pain. To evaluate the blood-flow of the TMJ region in the periods of pre- and post- MRJ examination, color Doppler ultrasonographic examinations were performed. Colored areas indicationg the facial artery and the superficial temporal artery were measured. The thickness of the masseter muscle was also measured. As the results, the blood-flow of the facial artery and the superficial temporal artery were reduced at the post- MRI examination. The mean thickness of the masseter muscle was increased at the post- MRI examination. The findings from MR images of TMJ showed that the maxillaris artery and the transversa faciei artery were stretched by mouth opening. In the continuous mouth opening, the mechanical stretch of the blood vessel may cause the decreasing of blood-flow. The thickness increment of masseter muscle may reveal the oedema which is a provocative factor of the pain

在颞下颌关节（TMJ）的MRI检查中，需要连续张口约10分钟才能获得张口位置的静态图像。持续张大嘴所产生的机械和心理压力可能会导致肌肉疼痛等颞下颌关节症状。为了评估 MRJ 检查前后 TMJ 区域的血流情况，进行了彩色多普勒超声检查。测量指示面动脉和颞浅动脉的彩色区域。还测量了咬肌的厚度。结果，MRI 检查后面动脉和颞浅动脉的血流量减少。 MRI 检查后咬肌的平均厚度有所增加。 TMJ MR 图像显示，张口时上颌动脉和面横动脉被拉伸。在持续张口时，血管的机械拉伸可能导致血流量减少。咬肌厚度的增加可能揭示水肿，这是疼痛的诱发因素

项目成果

Ariji Y: "Blood flow in and around the masseter muscle : Normal and pathology features demonstrated by color Doppler sonography"Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 91. 472-482 (2001)

Ariji Y：“咬肌内部和周围的血流：彩色多普勒超声检查显示的正常和病理特征”Oral Surg Oral Med Oral Pathol Oral Radiol Endod。

Zhao YP: "Color Doppler sonographic of the facial artery in the anterior face"Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 93. 195-201 (2002)

赵YP：“前面面部动脉的彩色多普勒超声检查”Oral Surg Oral Med Oral Pathol Oral Radiol Endod。

有地榮一郎: "超音波ドップラ法による血流の描出:顎顔面領域への応用"歯科放射線. 41. 3-12 (2001)

Eiichiro Arichi：“使用超声多普勒方法的血流图解：在颌面部区域的应用”牙科放射学。 41. 3-12 (2001)

Ariji E: "Color Doppler sonography of the facial artery"Oral Radiology. 17. 10-14 (2001)

Ariji E：“面部动脉彩色多普勒超声检查”口腔放射学。