CT及MRI在腹膜后原发肿瘤诊断中的应用探讨  

Application of computed tomography and magnetic resonance imaging for the diagnosis of primary retroperitoneal tumors

作　　者：刘舵 巩哲 刘瑜琳 任雪会 Liu Duo;Gong Zhe;Liu Yulin;Ren Xuehui(Department of Medical Imaging,Xidian Group Hospital,Xi'an710077,Shaanxi Province,China)

机构地区：[1]西电集团医院医学影像科,西安710077

出　　处：《中国基层医药》2025年第1期65-69,共5页Chinese Journal of Primary Medicine and Pharmacy

摘　　要：目的探讨计算机断层扫描(CT)及磁共振成像(MRI)在腹膜后原发肿瘤诊断中的应用。方法研究纳入2017年2月至2023年2月西电集团医院接收的100例疑似腹膜后原发肿瘤患者。所有患者进行病理活检,以病理诊断结果作为“金标准”,同时接受CT及MRI检查,比较CT、MRI检查及联合检查在腹膜后原发肿瘤诊断中的价值,并采用受试者工作特征(receiver operating characteristic,ROC)曲线分析CT、MRI诊断及联合诊断腹膜后原发肿瘤的效能。结果100例腹膜后原发肿瘤患者中,病理诊断出90例腹膜后原发肿瘤,其中21例为脂肪肉瘤,18例为神经鞘瘤,17例为恶性淋巴瘤,14例为恶性纤维组织细胞瘤,12例为平滑肌瘤,8例为脂肪瘤;经CT明确诊断(阳性)81例,经MRI明确诊断(阳性)83例,联合明确诊断(阳性)89例。ROC分析显示,CT与MRI联合诊断腹膜后原发肿瘤的灵敏度、特异度分别为98.9%、90.0%,ROC曲线下面积(AUC)为0.944,高于任一单项检测。结论CT和MRI在腹膜后原发肿瘤的诊断中具有重要价值,联合应用这两种成像技术可以显著提高诊断的灵敏度和特异度。ObjectiveTo investigate the use of computed tomography(CT)and magnetic resonance imaging(MRI)in diagnosing primary retroperitoneal tumors.MethodsThe study included 100 patients suspected of having primary retroperitoneal tumors,who were admitted to Xidian Group Hospital between February 2017 and February 2023.All patients underwent pathological biopsy,with the pathological diagnosis serving as the"gold standard."Additionally,each patient underwent both CT and MRI examinations.The diagnostic value of CT and MRI alone or in combination for primary retroperitoneal tumors was compared.Receiver operating characteristic curve was used to analyze the diagnostic efficacy of CT and MRI alone or in combination for primary retroperitoneal tumors.ResultsAmong the 100 patients with suspected primary retroperitoneal tumors,90 were pathologically diagnosed with primary retroperitoneal tumors.These included 21 cases of liposarcoma,18 of schwannoma,17 of malignant lymphoma,14 of malignant fibrous histiocytoma,12 of leiomyoma,and 8 of lipoma.CT confirmed 81 positive cases,MRI confirmed 83 positive cases,and the combined CT and MRI diagnosis identified 89 cases as positive.Receiver operating characteristic curve analysis revealed that the sensitivity and specificity of the combined CT and MRI diagnosis for primary retroperitoneal tumors were 98.9%and 90.0%,respectively,with an area under the curve of 0.944,which was superior to that of either CT or MRI alone.ConclusionsCT and MRI play a crucial role in the diagnosis of primary retroperitoneal tumors.The combined use of these two imaging techniques significantly improves both the sensitivity and specificity of diagnosis.

关 键 词：腹膜后肿瘤 体层摄影术 X线计算机 磁共振成像 活组织检查 针吸 病理学 临床 诊断 

分 类 号：R735.4[医药卫生—肿瘤]