膝关节前交叉韧带的MRI三维成像研究  

Three-dimensional MR reconstruction of anterior cruciate ligament

作　　者：张继良[1,2] 史大鹏[2] 藏卫东[3] 阚晓静[2] 

机构地区：[1]郑州大学基础医学院,450001 [2]河南省人民医院放射科,450003 [3]郑州大学基础医学院解剖教研室,450001

出　　处：《磁共振成像》2011年第1期38-41,共4页Chinese Journal of Magnetic Resonance Imaging

摘　　要：目的探讨MRI三维成像技术(M3D/cube T2WI)在膝关节前交叉韧带(anterior cruciate ligament,ACL)正常显示和损伤诊断的价值。方法选取30例正常自愿者(对照组)及11例ACL损伤病例(损伤组),在GE1.5T磁共振分别行MRI常规膝关节矢状面T1WI、FSE压脂T2WI(fs-T2WI)、冠状位压脂PDWI和M3D/cube T2WI序列扫描,运用ADW4.4工作站行ACL重组。采用双盲法判断MRI常规图像和M3D/cube T2WI图像ACL正常和异常显示情况。结果正常组MRI常规扫描ACL矢状面一幅图像显示完整16例,连续两幅图像显示完整14例。M3D/cube T2WI图像矢状面30例ACL均能在一幅图像上完整显示。损伤组11例ACL损伤患者,常规MRI诊断正常2例,部分损伤3例,断裂6例;M3D/cube T2WI图像诊断部分损伤5例,断裂6例。结论 M3D/cube T2WI技术可以完整显示ACL的形状和结构,提高ACL的显示率及韧带损伤的诊断正确率。Objective： To investigate the value of three dimensional reconstruction technique of 1.5 T MR in evaluation of anterior cruciate ligament （ACL）. Materials and Methods： Thirty normal volunteers and 11 patients who had ACL injury, underwent MR of knee joint including sagittal scanning of T1WI, fat suppressed-fast spin echo-T2 weight （FS-FSE-T2W）, coronal fat suppressed PDWI and M3D/cube T2WI. All images were reconstructed using ADW 4.4 workstation. The routine MR image and M3D/cube T2W images were compared. Results： Routine MRI： Sixteen cases were showed completely in one image, 14 cases were showed completely in two continues images; All the 30 cases were showed completely in M3D/cube T2WI in normal group. Two cases showed no injury, 3 cases showed ACL partial tears, 6 showed completely collapse in 11 ACL injuries in routine MRI; 5 cases showed ACL partial tears, 6 cases showed completely collapse in M3D/cube T2WI. Conclusion： M3D/eube T2WI could improve the diagnosis rate of ACL, it will be one of the best imaging technique to show ACL.

关 键 词：前交叉韧带 膝关节 损伤 磁共振成像 三维重建 

分 类 号：R445.2[医药卫生—影像医学与核医学] R684[医药卫生—诊断学]