MRISTIR序列诊断膝关节软骨损伤的效能  

Diagnostic Efficiency of MRI STIR Sequence for Knee Cartilage Injury

作　　者：朱志敏[1] 李华[1] 陈轶[1] 毛卫霞[2] 谢晶美 ZHU Zhi-min;LI Hua;CHEN Yi;MAO Wei-xia;XIE Jing-mei(Magnetic Resonance Room of Yulin Second Hospital,Yulin 719000,Shaanxi Province,China;CT Room of Yulin Second Hospital,Yulin 719000,Shaanxi Province,China)

机构地区：[1]榆林市第二医院磁共振室,陕西榆林719000 [2]榆林市第二医院CT室,陕西榆林719000

出　　处：《中国CT和MRI杂志》2023年第11期150-152,共3页Chinese Journal of CT and MRI

基　　金：陕西省卫生计生科研基金项目(2016D098)。

摘　　要：目的探讨低场强核磁共振短时间反转恢复序列(MRI STIR)序列在膝关节软骨损伤诊断中的应用效果。方法选取2020年2月~2022年2月本院收治的82例疑似膝关节外伤性骨软骨骨折患者,均行低场强核磁共振及手术病理检查。分析患者的诊断结果和低场强核磁共振影像特征,以手术病理结果为“金标准”,分析低场强核磁共振STIR序列诊断膝关节外伤性骨软骨骨折的kappa一致性,分析STIR序列与手术病理诊断骨折损伤程度的kappa一致性。结果经手术病理检查确诊为膝关节外伤性骨软骨骨折69例,其中损伤程度Ⅰ级16例、Ⅱ级17例、Ⅲ级21例和Ⅳ级11例;以病理诊断手术病理诊断结果为“金标准”,低场强核磁共振STIR序列诊断膝关节外伤性骨软骨骨折的敏感度、特异度为94.20%、53.85%(Kappa=0.512);低场强核磁共振STIR序列诊断膝关节外伤性骨软骨骨折损伤程度的准确度为75.38%(Kappa=0.664)。结论低场强核磁共振STIR序列对膝关节外伤性骨软骨骨折及骨折损伤程度具有较高的诊断价值,为临床筛查和诊断提供了可靠的影像学依据。Objective To explore the diagnostic efficiency of low-field magnetic resonance imaging short-tau inversion recovery(MRI STIR)sequence for knee cartilage injury.Methods A total of 82 patients with suspected traumatic osteochondral fracture of knee joint admitted to the hospital were enrolled between February 2020 and February 2022.All underwent low-field MRI and pathological examinations.The diagnostic results and imaging characteristics of low-field MRI were analyzed.Taking results of surgical pathology as the golden standard,kappa consistency of low-field MRI STIR sequence in the diagnosis of traumatic osteochondral fracture of knee joint,and the kappa consistency between STIR sequence and surgical pathology in the diagnosis of fracture severity were analyzed.Results In the 82 patients,surgical pathology showed that there were 69 cases with traumatic osteochondral fracture of knee joint,including 16 cases with fracture severity at gradeⅠ,17 cases at gradeⅡ,21 cases at gradeⅢand 11 cases at gradeⅣ.Taking pathological diagnosis results as the golden standard,sensitivity and specificity of low-field MRI STIR sequence in the diagnosis of traumatic osteochondral fracture of knee joint were 84.20%and 53.85%(Kappa=0.512).The accuracy of STIR sequence in the diagnosis of fracture severity was 75.38%(Kappa=0.664).Conclusion The low-field MRI STIR sequence has high diagnostic value for traumatic osteochondral fracture of knee joint and fracture severity,which provides reliable imaging basis for clinical screening and diagnosis.

关 键 词：低场强核磁共振 短时间反转恢复序列 膝关节 外伤性骨软骨骨折 诊断价值 诊断准确性 

分 类 号：R684.7[医药卫生—骨科学]