质子加权预饱和脂肪抑制序列对膝关节软骨损伤的诊断与关节镜对照研究  

The diagnosis of MRI PDW-FS sequence in articular cartilage injury in the knee:compared with arthroscopy

作　　者：杨春霞[1] 王书智[1] 毛存南[1] 卢铃铨[1] 宰天明[1] 

机构地区：[1]南京医科大学附属南京第一医院放射影像科,南京210006

出　　处：《医学影像学杂志》2010年第2期241-243,共3页Journal of Medical Imaging

摘　　要：目的:比较质子加权预饱和脂肪抑制序列(PDW-FS)和自旋回波T2WI对诊断膝关节软骨损伤的准确性,探讨PDW-FS对软骨损伤的诊断价值。方法:对关节镜探查手术的37例45只膝关节,术前行MR检查,作回顾性分析,比较PDW-FS、T2WI序列诊断软骨损伤的价值。结果:以关节镜为标准,PDW-FS和T2WI序列的Kappa值分别为0.88和0.68,PDW-SF检查结果与关节镜结果一致性好。PDW-FS敏感度89.7%,特异度97.1%,T2WI敏感度79.1%,特异度94.8%,差异有统计学意义(χ2=4.50,P<0.05)。结论:PDW-FS序列诊断膝关节软骨损伤的准确性优于T2WI,可准确地判断软骨损伤的范围和深度,为临床医生选择合适的治疗方案提供可靠依据。Objective：To compare the accuracy of PDW-FS and SE-T2WI sequences in the diagnosis of articular cartilage injury of the knee and to investigate the diagnostic value of PDW-FS in the cartilage injury.Methods：Forty-five knee joints of thirty-seven patients,who were scheduled for arthroscopy and underwent MR examination prior to arthroscopy,were analyzed in this study.The diagnostic value of PDW-FS and SE-T2WI sequences in the cartilage injury were compared.Results：Compared with the arthroscopy,the Kappa with PDW-FS and T2WI were 0.88,0.68 respectively.The correlation between PDW-FS and arthroscopy in detecting cartilage injury was remarkable.The sensitivity and peculiarity with PDW-FS were 89.7%,97.1% respectively;The sensitivity and peculiarity with T2WI were 79.1%,94.8% respectively. The difference was significant between two sequences（χ2=4.50,P0.05）.Conclusion：The diagnostic accuracy of PDW-FS sequence in articular cartilage injury of the knee is better than that of T2WI.PDW-FS can accurately demonstrate the scope and the depth of the articular cartilage injure,provide the reliable basis for clinician to choose the appropriate treatment plan.

关 键 词：软骨 关节病 膝关节 关节镜检查 磁共振成像 

分 类 号：R681.8[医药卫生—骨科学] R445.2[医药卫生—外科学]