Application of rotational DSA and conventional DSA in early diagnosis and TACE interventional therapy in primary liver cancer
Objective To investigate the application of rotational digital subtraction angiography(DSA)and conventional DSA in early diagnosis and transcatheter arterial chemoembolization(TACE)interventional therapy in primary liver cancer(PLC)Methods During January 2022 to October 2023,One hundred patients with suspected PLC and 76 PLC patients with 3-month postoperative TACE interventional therapy admitted in our hospital were enrolled in the study.All patients were managed by conventional DSA and rotational DSA examinations.The pathological parameters were used as golden standard,the diagnostic efficacy of rotational DSA versus conventional DSA was evaluated,including the detection results,diagnostic efficacy,lesion detection rate,clinical detection and image quality in primary liver cancer.In addition,The detection rates of postoperative residual or recurrent lesions were assessed between the two methods.Results The diagnostic sensitivity,accuracy,negative prediction value of rotational DSA were significantly higher than those of conventional DSA(P<0.05).The detection rates of the lesions and the lesions less than 1 cm of the rotational DSA were significantly higher than those of conventional DSA(97.79%vs 87.50%,91.43 vs 68.57,both P<0.05,respectively).The contrast dose,radiation dose,imaging frequency of the rotational DSA was significantly lower than those of conventional DSA(P<0.05).The proportion of grade A images of the rotational DSA was significantly higher than that of conventional DSA(86.00%vs 70.00%,P<0.05).The detection rates of postoperative residual and recurrent lesions of the rotational DSA was significantly higher than that of conventional DSA(98.55%vs 84.06%,P<0.05).Conclusion The effect of rotational DSA in diagnosis of small or occult lesions and residual or recurrent lesions after TACE interventional therapy is obviously better relative to conventional DSA,which can provide important reference for early diagnosis and important clinical value for PLC after TACE.