Abstract:Objective To analyze the feasibility and clinical value of repeated 4D-hysterosalpingo contrast sonography in evaluating the patency of fallopian tube. Methods The patients who have complete obstruction of unilateral or bilateral fallopian tubes by 4D-HyCoSy inspection in our hospital from January 2015 to July 2018 were selected as the research objects. The patients were divided into the single angiography group and repeat angiography group according to the principle of voluntary selection. The consistency of examination results between the two groups and the results of laparoscopy was compared, and the clinical data of patients with inconsistent results of repeat angiography and single angiography were analyzed, while the adverse reactions of patients in the two groups were compared. Results The coincidence rate of single angiography and repeat angiography with laparoscopy was 87.9% and 95.2%. The results of single angiography had good consistencies with the results of laparoscopy (Kappa = 0.760), but the repeat angiography was better (Kappa = 0.905). The proportion of horizontal uterine and distal fallopian tube obstruction, tube depth/intimal line length, and balloon volume were significantly higher in patients with two inconsistent angiography results than in patients with two consistent angiography results (P < 0.05). NRS pain scores of patients in the repeat angiography group were significantly higher than those in the single angiography group (P < 0.05). Conclusion The repeated 4D-HyCoSy was used in patients with unilateral or bilateral fallopian tubes obstruction in order to improve the accuracy of imaging results.