多层螺旋CT及MRI在肝癌介入术后疗效的评估价值

Evaluation Value of Multi-slice Spiral CT and MRI in the Treatment of Liver Cancer After Interventional Operation

目的研究多层螺旋CT及MRI在肝癌介入术后疗效的评估价值。方法选择我院2015年12月到2017年12月采用肝癌介入术治疗患者120例,在介入术后2个月复查,均进行DSA、CT及MRI检测,以DSA为金标准,比较CT及MRI对术后患者病灶残留及病灶肿瘤包膜检出率,比较两种检测方式对动脉期感兴趣区评分情况,及对术后患者病灶供血来源及诊断门静脉内癌栓的准确性。结果 MRI对病灶残留及肿瘤包膜检出率明显高于CT,差异有统计学意义(P<0.05);MRI在动脉期强化区评分及最长、短径上与CT差异无统计学意义(P>0.05);MRI在判断门静脉内癌栓准确率及病灶供血来源上与CT差异无统计学意义(P>0.05)。结论 MRI对肝癌介入术后患者残留病灶及肿瘤包膜检出率高于CT,在显示病灶血供、门脉癌栓方面与CT相仿。

Objective To study the evaluated value of multi-slice spiral CT and MRI in the treatment of liver cancer after interventional surgery. Methods A total of 120 patients undergoing liver cancer interventional surgery were selected from December 2015 to December 2017 in the hospital, and they were reviewed at 2 months after interventional surgery, and were given digital subtraction angiography(DSA), CT and MRI. DSA was used as the gold standard to compare the detection rates of residual lesions and lesion tumor capsules between the two examination methods. The region of interest score in the arterial phase was compared between the two examination methods, and the longest diameter and the shortest diameter were measured, and the lesion blood supply source of postoperative patient and the diagnostic accuracy of cancer emboli within portal vein were compared. Results The detection rates of residual lesions and tumor capsules were significantly higher in MRI group than those in CT group(P<0.05). There was no significant difference in the enhanced area score in arterial phase, the longest diameter and the shortest diameter between CT group and MRI group(P>0.05). There was no significant difference between CT group and MRI group in judging the accuracy of cancer emboli within portal vein and the source of lesion blood supply(P>0.05). Conclusion MRI has a higher detection rate of residual lesions and tumor capsule than CT, and similar to CT in displaying blood supply of lesions and tumor thrombus of portal vein.