经阴道超声诊断宫内妊娠,排除异位妊娠的准确率极高,已基本取代诊断性刮宫(下简称诊刮)成为诊断异位妊娠的主要方法,但在某些情况下,超声检查难以确诊,仍需要行诊刮来鉴别异常宫内妊娠和异位妊娠。为探讨快速冰冻切片检查诊断宫内妊娠的准确性,以明确该技术能否用于诊断异位妊? Transvaginal ultrasound diagnosis of intrauterine pregnancy, excluding ectopic pregnancy high accuracy, has basically replaced the diagnostic curettage (hereinafter referred to as curettage) as the main method of diagnosis of ectopic pregnancy, but in some cases, the ultrasound diagnosis is difficult to diagnose , There is still a need for a curettage to identify abnormal intrauterine pregnancies and ectopic pregnancies. In order to explore the accuracy of rapid frozen biopsy diagnosis of intrauterine pregnancy in order to determine whether the technology can be used to diagnose ectopic pregnancy?