Follow-up checkups with uterotubography in 84 cases for 1 ~ 3 months ( mean 2.3 months ) found a patent rate of both oviducts of 82.1 % ( 69 / 84 ) .

84例 保留 输卵 管 者随访1~3个月，平均2.3月， 子宫 输卵管造影双侧输卵管通畅率为82.1%（ 69/84）。

Conclusion : The digital subtraction method with high-pressure auto-injector could improve the quality of uterotubography image .

结论：采用数字减影与高压 注射器行 子宫 输卵管 造影能提高造影质量。