MRI诊断透明细胞软骨肉瘤的准确性及影像特点观察  

Observation on Accuracy and Imaging Features of MRI in Diagnosis of Clear Cell Chondrosarcoma

作　　者：杨冰[1] 陈喆祎 李巍[1] 宋国平[2] 李梅[2] YANG Bing;CHEN Zhe-wei;LI Wei(Department of Radiology,Shanghai Eighth People's Hospital,Shanghai 200235,China)

机构地区：[1]上海市第八人民医院放射科,上海200235 [2]上海市第六人民医院放射科,上海200233

出　　处：《中国CT和MRI杂志》2020年第6期133-135,共3页Chinese Journal of CT and MRI

摘　　要：目的观察磁共振成像(Magne tic Resonance Imaging,MRI)诊断透明细胞软骨肉瘤(clear cell chondrosarcoma,CCCS)的准确性及影像特点。方法选取上海市第八人民医院及上海市第六人民医院收治的6 5例疑似CCCS患者,予以M RI检查,以病理诊断为"金标准",观察MRI检查准确性、灵敏度及特异度,并分析其MRI影像特点。结果手术病理诊断显示,65例患者中,56为CCCS,MRI诊断灵敏度92.86%(52/56),特异度77.78%(7/9),准确性90.77%(59/65),Kappa值0.65;MRI确诊的CCCS中,溶骨性破坏与侵蚀性破坏分别占78.85%、21.15%;点状钙化占1 00.00%,不均匀分隔状强化占1 00.00%,混杂信号占80.77%。结论 MRI诊断CCCS具有较高准确性,其MRI影像特点以溶骨性破坏、不均匀分隔状强化、点状钙化以及混杂信号(主要是高强度T1、T2)为主。Objective To observe the accuracy and imaging features of magnetic resonance imaging(MRI) in diagnosis of clear cell chondrosarcoma(CCCS). Methods 65 patients with suspected CCCS who were admitted to Shanghai Eighth People’s Hospital and Shanghai Sixth People’s Hospital were enrolled. MRI was performed on them. Taking the pathological diagnosis as golden standard, the accuracy, sensitivity and specificity of MRI examination were observed. The imaging features of MRI were analyzed. Results The surgical pathological diagnosis showed among the 65 patients, there were 56 cases with CCCS. The diagnostic sensitivity, specificity, accuracy and Kappa value of MRI were 92.86%(52/56), 77.78%(7/9), 90.77%(59/65) and 0.65, respectively. In the CCCS confirmed by MRI, Osteolytic destruction and corrosive destruction accounted for 78.85% and 21.15%, respectively. The punctate calcification, uneven segregation reinforcement and mixed signal accounted for 100.00%, 100.00% and 80.77%, respectively. Conclusion The accuracy of MRI is relatively higher in diagnosis of CCCS. An the MRI imaging features are mainly characterized by osteolytic destruction, uneven separation reinforcement, punctate calcification and mixed signals(mainly on high-intensity T1 and T2).

关 键 词：磁共振成像 电子计算机断层扫描 透明细胞软骨肉瘤 准确性 影像特点 

分 类 号：R738.3[医药卫生—肿瘤] R329[医药卫生—临床医学]