RESUMO
Objective:To investigate the diagnostic value of multi-slice spiral CT (MSCT) combined with CT angiography (CTA) in the recurrence of hepatocellular carcinoma (HCC) after transcatheter arterial chemoembolization (TACE).Methods:97 HCC patients who received TACE therapy in the 942 Hospital from January 2017 to January 2019 were enrolled in the study. MSCT, CTA and MSCT combined with CTA were performed in all subjects to compare the efficacy of different examination methods in diagnosing postoperative recurrence.Results:MSCT results showed that 45 new lesions were detected in 30 of the 97 patients, with a diameter of 0.4-1.8 cm, with an average of (0.92±0.31)cm. In arterial phase, 32 lesions were significantly enhanced, 10 were mildly enhanced and 3 were not significantly enhanced. In the venous phase, there were 20 high-density shadows, 18 isodensity shadows and 7 low-density shadows. In the delay period, there were 24 shadows with high density or slightly high density, 10 with clear edge of low density, and 11 with unclear edge of low density. The results of CTA showed that there were 47 vessels in 32 cases of 97 patients, including 18 cases of hepatic artery variation and 29 cases of blood supply artery of lateral hepatic branch. Taking pathological diagnosis as the gold standard, the sensitivity, specificity and accuracy of MSCT combined with CTA in the diagnosis of HCC recurrence after TACE were 97.50% (39/40), 96.49%(55/57), 96.91% (94/97), which were higher than 75.00% (30/40), 77.19% (44/57), 76.29% (74/97) of MSCT and 80.00% (32/40), 80.70% (46/57) and 80.41%(78/97) of CTA respectively (all P<0.05) . Conclusions:MSCT combined with CTA has a better efficacy in the diagnosis of TACE recurrence in HCC patients, which is worthy of clinical application.