Empty-bladder (hysterographic) view on US for evaluation of intrauterine devices. Work in progress.

Abstract

Ultrasound scanning of the pelvis with an empty bladder permits a true frontal view of the uterus to be easily obtained. This view is comparable to the en face view seen at hysterography performed with contrast material. Good definition both of the endometrium and the uterine wall makes this the optimal method for the evaluation of an intrauterine contraceptive device.

Gynecologic Sonography

“…Transva¬ ginal technology enables verification of a normal, intrauterine pregnancy at 32 menstrual days with visualization < A i gestational sac and of a yolk sac with i the gestational sac at 36 to 40 days; 11 ; improves certain diagnoses of an intra¬ uterine gestation by approximately 1 week over transabdominal tech niques.75 Definitive trans vaginal sono¬ graphic criteria for normal intrauterine pregnancies are now being established for various stages of gestation; this will further enhance our ability to diagnose such complications as intrauterine em¬ bryonic death and incomplete and com¬ plete first-trimester abortion. 76"78 Transvaginal sonography has two significant advantages over transabdo-minai studies in the early diagnosis of extrauterine pregnancies.76,78"82 First, transvaginal sonography is more reli¬ able in excluding the presence of an ear¬ ly intrauterine gestation.…”