磁共振三维脂肪抑制T2加权快速回波序列在评估健康受试者踝关节韧带解剖结构的应用研究

摘要

目的：分析3.0 T磁共振三维脂肪抑制T2加权快速回波（3D FSE CUBE）序列与常规检查技术2D FSE序列对健康受试者踝关节韧带解剖细节显示的价值。方法选取36名健康受试者踝关节进行磁共振成像（MRI），使用GE HDXT 3.0 T磁共振扫描仪及高分辨率膝关节专用线圈。本研究所使用的MRI序列为二维脂肪抑制T2加权（2D-FSE-T2WI）和3D FSE CUBE。扫描范围包括踝关节的冠状位、矢状位和轴位。分别计算上述2个序列对于踝关节联合韧带、外侧副韧带、三角韧带的显示率。从而评价上述2个序列对于踝关节韧带的显示能力。结果3D FSE CUBE序列对于踝关节韧带的显示优于常规2D序列，二者之间的差异具有统计学意义（P<0.05）。3D FSE CUBE序列对于踝关节各韧带的显示能力要明显高于普通FSE序列。结论3D FSE CUBE是一种新的磁共振序列，可以进行不同的加权图像扫描，对于踝关节韧带正常解剖结构的显示清晰，可以满足临床诊断的需要。%Objective To analyse the value of MR 3D FSE CUBE sequence and conventional 2D FSE T 2WI sequence in evaluation of anatomy of ligament ankle joint of healthy volunteers at 3T MR scanner. Methods The ankles in 36 cases were examined with MR imaging spin echo-T2 weighted imaging (2D T2WI FSE) and 3D FSE CUBE. Sweep range ankle coronal and sagittal and axial position. The above two sequences were calculated respectively for the ankle joint ligament, the detection rate of the lateral collateral ligament, deltoid ligament, to evaluate these two sequences for the ankle ligaments show ability. Results 3D FSE CUBE sequence provided a significantly higher rate for all ligament ankle joint compared with conventional 2D sequence , there was significant difference between them (P<0.05). Conclusion 3D FSE CUBE is a new technique for examination of ankle joint, which can be different weighted image scanning.It can clearly show the anatomy of ligament ankle joint and meet the needs of clinical diagnosis.