Abstract: Objective To investigate the evaluation of tumor recurrence in patients with primary liver cancer after TACE by ultasonography，spiral CT and MRI.Methods An retrospective study of clinical data in 45 patients with PLC was conducted in this study. All patients were checked-up by DSA，ultasonography，spiral CT，and MRI after TACE. The DSA result was acted as the gold standard to compare the diagnostic efficacies of other three imaging examination.Results In displaying small lesions less than 5 cm，the sensitivity and specificity of MRI （Se=92.3％，Sp=88.5％） and ultasonography （Se=89.4％，Sp=84.6％） were higher than those by spiral CT（Se=88.7％，Sp=80.8％，respectively），the difference were statistically significant （P<0.05）；In displaying large lesions greater than 5 cm，the differences of diagnostic values among the three imaging examinations had no statistical difference（P＞0.05）；In finding the blood supply of the neoplasmas，the three imaging examination had no statistical difference（P>0.05）；In showing portal venous tumor emboli foramtion，the 92.2％ accuracy of spiral CT was higher than 90.8％ by MR，or 90.5％ by ultasonography，and the differences were statistically significant（P<0.05）；In displaying the lesions strengthening，the specificity（95％） of ultasonography and 96.4％ of MRI were superior to 93.7％ of spiral CT.Conclusion Ultrasound examination might be an alternative approaches to evaluate the recurrence of tumors in patients with PLC after TACE.

Key words: Hepatoma, TACE, Recurrence, Imaging examination