经阴道彩色多普勒超声成像技术是扫描器官或组织内的血管分布及血流频谱的诊断技术。在辅助生殖技术(ART)治疗不孕症的过程中,用阴道彩色多普勒超声成像技术监测子宫血流,评价子宫内膜的接受性,可以帮助人们确立移植的最佳时间及移植胚胎的合适数目,从而在提高妊娠率的同时减少多胎的发生。是一种简便易行、重复性好、无创伤、准确率高的检查方法。 Transvaginal color Doppler ultrasound imaging is a diagnostic technique that scans blood vessels and blood flow in organs or tissues. In assisted reproductive technology (ART) in the treatment of infertility, the use of vaginal color Doppler ultrasound imaging of uterine blood flow, evaluation of endometrial receptivity, can help people establish the best time for transplantation and embryo transfer The appropriate number, thereby increasing the pregnancy rate while reducing the incidence of multiple births. Is a simple, reproducible, non-invasive, high accuracy of the inspection methods.