美国肯塔基大学医疗中心从1987年11月到1989年4月,对1000名妇女进行了经阴道超声普查。普查对象年龄>40岁,临床上无任何症状。不包括那些已明确肿瘤性质,或有卵巢肿瘤史,或以往接受过盆腔放射治疗的人。闭经超过六个月就被认为是绝经。作者使用飞利甫 SDR1550实时超声仪,阴道探头频率5 MHz。病人检查前排空 The University of Kentucky Medical Center conducted a transvaginal ultrasound screening of 1,000 women from November 1987 to April 1989. Census age> 40 years old, clinically without any symptoms. Excludes those who have defined the nature of the tumor, or have a history of ovarian cancer, or who have previously received pelvic radiotherapy. Amenorrhea is considered menopause after more than six months of amenorrhea. The author uses the Philips Li-SDR1550 real-time ultrasound system, the vaginal probe frequency of 5 MHz. Empty patient before examination