评价MRI对原发性肝癌经导管动脉化疗栓塞后残癌的检出价值

目的分析25例原发性肝癌(hepatocellular carcinoma,HCC)经导管动脉化疗栓塞(transcatheterarterial chemoembolization,TACE)治疗后残癌的磁共振(MRI)表现,并与数字减影血管造影(digital subtraction angi-ography,DSA)对比,了解MRI对残癌的检出价值。方法25例原发性肝癌行TACE治疗的患者,TACE治疗后4~6周常规行MRI平扫及腹部三维容积多期动态增强扫描,MRI检查后1~3天行DSA造影。结果初次TACE后,25例患者中,24例患者的41个残癌病灶被检出,MRI和DSA分别检出39个,其中21例患者的37个病灶MRI与DSA检出相符(37/41);另外4个病灶,DSA发现位于原发灶中心2个,而MRI未发现。MRI发现位于肝脏边缘2个,而DSA未发现。结论MRI是肝癌TACE术后了解残癌的理想检查方法。

Evaluating value of MRI in the diagnosing residal tumor after transcatheter arterial chemoembolization of hepatocellular carcinoma

Objective To evaluate the value of MRI in diagnosing the residal tumor of after transcatheter arterial chemoembolization of hepatocellular carcinoma by contrasting the MRI and DSA manifestations.Methods25 patients of HCC underwent MRI examination within the 4~6 weeks after TACE,then underwent DSA within the 1~3 days after MRI.MRI was performed with routinely pre-contrast and propeller LAVA sequence dynamic multi-phase contrast scans.Results41 residual lesions were identified in 24 patients after first time TACE.39 residual lesions were demonstrated by MRI and DSA respectively,and 37 lesions found in MRI were corresponding with DSA.2 lesions locating in the center of the primary tumour cannot be detected in MRI,but were showed by DSA.2 lesions at the edge of the liver werr not revealed by DSA,but were demonstrated by MRI.ConclusionMRI is a ideal method for diagnosing residal tumor after TACE.