Abstract: Objective To study on the value of advanced dynamic flow imaging (ADF) in evaluating the stent patency of transjugular intrahepatic portosystemic shunt (TIPS). Methods Sixty-four patients with TIPS therapy who were admitted to our hospital from July 2017 to July 2019 were included in the study. All patients underwent ADF examination. The results of contrast-enhanced ultrasonography (CEUS) were used as gold standard to compare ADF with CEUS in the evaluation of TIPS stent patency. The consistency between ADF and CEUS results was analyzed. Results ADF detected 0 case with 0 grade, CEUS detected 0 case with 0 grade, the diagnostic coincidence rate was 100.00%; ADF detected 4 cases with grade 1, CEUS detected 3 cases with grade 1, the diagnostic coincidence rate was 98.44%; ADF detected 4 cases with grade 2, CEUS detected 4 cases with grade 2, the diagnostic coincidence rate was 100.00%; ADF detected 56 cases with grade 3, CEUS detected 57 cases with grade 3, the diagnostic coincidence rate was 95.31%. The sensitivity, specificity, accuracy, positive predictive value, negative predictive value and Kappa value of ADF in the evaluation of TIPS stent patency were 85.71%, 96.49%, 95.31%, 75.00%, 98.21% and 0.77, respectively. Conclusion The stent patency of TIPS can be displayed in time by ADF. It is therefore important in evaluating TIPS function, and worthy of clinical promotion.

Key words: Advanced dynamic flow, Transjugular intrahepatic portosystemic shunt, Portal hypertension, Contrast enhanced ultrasonography