探索超液化碘油子宫输卵管造影拍摄延迟片时间，缩短拍摄延迟片时间是否可行。

回顾性收集2021年1月至2023年1月，北京妇产医院收治的行输卵管造影检查的不孕症女性患者的临床资料。在超液化碘油输卵管造影后，分别于术后第3、6、24小时拍摄盆腔延迟片，观察输卵管内碘油残留情况，判断输卵管通畅性和功能。采用卡方检验比较在输卵管造影术后3、6、24 h拍摄延迟片，诊断输卵管通畅程度的差异。

卡方检验结果显示，在第3、6、24小时拍摄延迟片诊断结果差异有统计学意义（P=0.002）。组间两两比较，在第3小时和第6小时拍摄延迟片诊断结果差异无统计学意义（P=0.807）。在第3小时或第6小时拍摄延迟片，与第24小时拍摄延迟片比较，诊断结果差异有统计学意义（P=0.001，0.006）。输卵管通畅情况下，在第3、6和24小时拍摄延迟片，诊断结果差异无统计学意义（P=0.787）。但是，在输卵管通畅的情况下，第3、6小时拍摄延迟片，输卵管内有部分碘油残留或伞端周围碘油局部聚集提示蠕动功能差，第24小时拍摄延迟片会遗漏输卵管功能信息（P=0.001，0.001）。在输卵管积水情况下，第3、6小时拍摄延迟片和第24小时拍摄延迟片差异均有统计学意义（P=0.010，0.015），第24小时拍摄延迟片，输卵管积水显影率高。输卵管阻塞情况下，第3小时和第24小时拍摄延迟片差异有统计学意义（P=0.003）。

在输卵管通畅的情况下，在第3小时拍摄延迟片即可满足诊断要求，并可评价输卵管功能。在输卵管积水和输卵管阻塞的情况下，在第24小时拍摄延迟片更具有诊断价值。

To explore whether it is feasible to shorten the delayed film time of ultra-liquefied lipiodol hysterosalpingography.

After hysterosalpingography with ultra-liquefied lipiodol, pelvic delay films were taken at 3 hours,6 hours and 24 hours after operation to observe the residual lipiodol in the fallopian tube and judge the patency and function of the fallopian tube. Chi-square test was used to compare the differences in the degree of tubal patency diagnosed by taking delayed films at 3 h, 6 h, and 24 h after hysterosalpingography.

Chi-square test results showed that there was a statistically significant difference in the diagnostic results of delayed films at 3 hours, 6 hours, and 24 hours (P=0.002). There was no significant difference in the diagnostic results of delayed films between the two groups at the 3rd hour and the 6th hour (P=0.807). There were statistically significant differences in the diagnostic results between the delayed films taken at the 3rd or 6th hour and the delayed films taken at the 24th hour (P=0.001, P=0.006). In the case of tubal patency, there was no significant difference in diagnostic results between the delayed films taken at 3 hours, 6 hours and 24 hours (P=0.787). However, in the case of unobstructed fallopian tubes, delayed filming at 3 and 6 hours showed that some lipiodol residues in the fallopian tubes or local accumulation of lipiodol around the umbrella end indicated poor peristalsis, and delayed films at 24 hours miss fallopian tube function information (P=0.001, P=0.001). In the case of hydrosalpinx, the difference between the delayed film taken at the 3rd hour and the 6th hour and the delayed film taken at the 24th hour was statistically significant (P=0.010, P=0.015). In the case of fallopian tube obstruction, there was a statistically significant difference in the delay film between the 3rd hour and the 24th hour (P=0.003).

In the case of fallopian tube patency, the delayed film taken at the third hour can meet the diagnostic requirements and evaluate the fallopian tube function. In the case of hydrosalpinx and fallopian tube obstruction, it is more valuable to take a delayed film at 24 hours.