颞颌关节MR扫描技术应用  

The Application of MR Scanning Technique for Temporomandibular Joint

作　　者：宋海岩[1] 侯严振[1] 雷益[1] 李顶夫[1] 胡若凡[1] 

机构地区：[1]深圳市第二人民医院磁共振室,广东深圳518035

出　　处：《实用放射学杂志》2011年第7期1097-1099,共3页Journal of Practical Radiology

摘　　要：目的 探讨在没有颞颌关节专用线圈情况下颞颌关节的MR扫描技术.方法 79例共158侧颞颌关节,其中35例70侧颞颌关节使用头线圈,44例88侧颞颌关节使用矩形表面大线圈,行斜矢状面的快速双回波自旋序列（Pd＋T2_tse）、斜冠状面多回波序列（Multiple echo 2 dimension,Me_2d）扫描.结果 158侧颞颌关节图像皆可以满足诊断需要,应用矩形表面大线圈的图像质量明显好于头线圈,有较好的对比度、空间分辨率和较高的信噪比.158侧病例中,20侧正常,138侧符合颞下颌关节紊乱综合征的MR影像学诊断.结论 使用矩形表面大线圈,通过对扫描序列,扫描参数的设计,可以得到符合临床要求的高质量颞下颌关节的MR图像.Objective To study MR scanning technique for temporomandibular joint （TMJ） without temporomandibular coil. Methods TMJ in 79 cases were examined with MRI using head coil or CP flex large coil,coronal Pd＋T2_se,Me_2d. Results All images in 158 cases were satisfactory for clinical diagnosis. The image quality using CP flex large coil was better than that using head coil in image contrast, spatial resolution and signal to noise ratio. 20 joints were normal and 138 joints were diagnosed as temporomandibular disorder（TMD） by MRI. Conclusion MR image quality of TMJ using CP flex large coil is fine for clinical diagnosis by sequence selection and parameter adjustment.

关 键 词：磁共振成像 颞下颌关节 颞下颌关节紊乱综合征 

分 类 号：R445.2[医药卫生—影像医学与核医学] R782.6[医药卫生—诊断学]