【摘要】 目的探究动态MR和螺旋CT多期增强扫描对肝硬化患者出现肝癌的临床诊断价值。方法选取2017年6月至2019年1月我院收治的120例肝硬化出现肝癌患者作为研究对象。均行动态MR和螺旋CT多期增强扫描,CT平扫后增强三期扫描,即动脉期、门脉期、延时期扫描;MR采常规自旋回波序列、LAVA序列多期增强扫描。观察肿瘤病灶数目、大小和强化特征。结果 120例患者,共检出157个病灶,病灶<3cm(小肝癌)54个,动态MR检出率90.7%,螺旋CT检出率70.4%。157个病灶动态MR与螺旋CT多期增强扫描检出率94.3%、87.9%比较,差异具有统计学意义(P<0.05),动态MR与螺旋CT多期增强扫描准确率为89.8%、87.9%,但两组比较,差异无统计学意义(P>0.05)。结论动态MR和螺旋CT多期增强扫描能够显示肝硬化出现肝癌强化特征,通过LAVA序列上相关信号特征,动态MR的肝癌检出率、准确度及显示肝癌包膜和血管均优于螺旋CT。更多还原

【Abstract】 Objective To investigate the clinical value of dynamic MR and spiral CT multi-phase enhanced scanning for liver cancer in patients with liver cirrhosis.Methods A total of 120 patients with liver cirrhosis developing liver cancer admitted to ourhospital from June 2017 to January 2019 were enrolled as subjects.All patients underwent dynamic MR and spiral CT multi-phase enhanced scanning,and CT three-phase enhanced scan was performed after CT plain scanning,i.e.,arterial phase,portal phase,and delay phase scanning.MR adopted conventional spin echo sequence and LAVA sequence multiphase enhanced sca ning.The number,size and enhancement cha racteristics of tumor lesions.Results A total of 157 lesions were detected in 120 patients,of which 54 lesions <3 cm(small liver cancer)were found.The dynamic MR detection rate was 90.7%,and the spiral CT detection rate was 70.4%.The detection rates of dynamic MR and spiral CT multi-phase enhanced scanning in 157 lesions were 94.3% and 87.9%(P<0.05),and the accuracy of dynamic MR and spiral CT multi-phase enhanced scanning was 89.8% and 87.9%(P>0.05).Conclusion Dynamic MR and spiral CT multi-phase enhanced sca nning can show the enhancement characteristics of liver cancer in liver cirrhosis,which are better than spiral CT bythe releva nt signal cha racteristics of LAVA sequence,the detection rate and accuracy of dynamic MR in liver cancer,and the display of liver cancer capsule and blood vessel.更多还原