磁共振动态增强联合磁共振弥散加权成像对肝占位性病变的诊断价值探讨

Diagnostic value of dynamic contrast-enhanced MRI combined with diffusion weighted MRI in hepatic space-occupying lesions

目的分析对肝占位性病变应用磁共振动态增强联合磁共振弥散加权成像的诊断价值。方法 49例肝占位性病变患者,对患者分别进行CT、磁共振动态增强以及磁共振弥散加强成像检查,分析磁共振动态增强联合磁共振弥散加权成像的表现,对比两种诊断方式的结果。结果磁共振动态增强联合磁共振弥散加权成像中,干细胞肝癌、肝转移瘤均为稍高信号,肝海绵状血管瘤为高信号,肝囊肿为低信号。将手术病理结果作为"金标准",磁共振动态增强联合磁共振弥散加权成像对肝细胞肝癌、肝转移瘤、肝囊肿、肝海绵状血管瘤的诊断准确率分别为92.00%、66.67%、100.00%、90.00%,均高于CT联合磁共振动态增强的60.00%、20.00%、78.95%、40.00%,差异有统计学意义(P<0.05)。结论对肝占位性病变应用磁共振动态增强联合磁共振弥散加权成像诊断可以提升诊断准确率,为临床治疗提供更多有价值信息,值得推广和使用。

Objective To analyze the value of dynamic contrast-enhanced MRI combined with diffusion weighted MRI in the diagnosis of space-occupying hepatic lesions.Methods 49 patients with hepatic spaceoccupying lesions were examined by CT,dynamic contrast-enhanced MRI and diffusion weighted MRI.The performance of dynamic contrast-enhanced MRI combined with diffusion weighted MRI was analyzed,and the diagnostic results of the two methods were compared.Results In dynamic contrast-enhanced MRI combined with diffusion weighted MRI,stem cell liver cancer,and liver metastasis were slightly high signal,hepatic cavernous hemangioma was high signal,and liver cyst was low signal.Using the surgical pathology results as the "gold standard",the diagnostic accuracy of dynamic contrast-enhanced MRI combined with diffusion weighted MRI for hepatocellular carcinoma,liver metastasis,liver cyst,and hepatic cavernous hemangioma were 92.00%,66.67%,100.00%,and 90.00%,which were higher than 60.00%,20.00%,78.95%,and 40.00% of CT combined with dynamic contrast-enhanced MRI,and the differences were statistically significant(P<0.05).Conclusion In the diagnosis of hepatic space-occupying lesions,the application of dynamic contrast-enhanced MRI combined with diffusion weighted MRI can improve the diagnostic accuracy and provide more valuable information for clinical treatment,which is worthy of promotion and application.