Clinical Comparison of Residual and New Lesions after Transcatheter Arterial Chemoembolization(TACE)in Patients with Primary Liver Cancer Diagnosed by MRI and Enhanced CT
Objective The aim of this study was to investigate the diagnostic value and accuracy of magnetic resonance imaging(MRI)and enhanced CT(CECT)for residual and new lesions after transcatheter arterial chemoembolization(TACE)of primary liver cancer(PHC).Methods The study subjects were 72 PHC patients with 92 lesions treated from January 2021 to January 2022 in our institution.All patients underwent TACE and were followed up for 6 months after surgery.In addition,all patients underwent digital subtraction angiography(DSA),and the diagnostic value and accuracy of MRI and CECT for the detection of residual and new lesions after TACE in HCC patients were evaluated using the results of DSA as the gold standard.Results There was no significant difference in specificity between the two diagnostic methods(P＞0.05),but the diagnostic accuracy and sensitivity of MRI were significantly higher than those of CECT(P＜0.05).The number of residual and new lesions detected by MRI was significantly higher than that by multislice computed tomography(MSCT)(P＜0.05),and the detection rate of residual and new lesions after TACE was significantly higher than that by CECT in PHC patients with different types of lipiodol deposits(P＜0.05).The number of tumor envelopes diagnosed by postoperative MRI was significantly higher than that by CECT(P＜0.05).There was no significant difference in the scores of residual enhancement signs in the arterial phase postoperatively between the two diagnostic methods(P＞0.05).In addition,the diagnosis of portal vein tumor thrombus and the blood supply source of the postoperative lesion were not significantly different between the two diagnostic methods(P＞0.05).Conclusion MRI has a higher diagnostic accuracy and sensitivity than CECT for the residual and new lesions after TACE in HCC patients.However,the two diagnostic methods are similar in terms of the diagnosis of portal vein tumor thrombus,the source of blood supply to the lesion,and the scoring of residual enhancement in the arterial phase postoperatively.
Magnetic Resonance imagingContrast Enhanced CtPrimary Liver CancerTranscatheter Hepatic Arterial Chemoembolization
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