[Improved early diagnosis of intrauterine pregnancy using an ultrasonic vaginal sonde].

The presented vaginal sonde can be brought up to the investigated tissue at minimal distance and the patient can be sonographed without special preparation (e.g. the uncomfortable and time consuming filling of the bladder). Besides the more feasible organization for the physician the method allows early diagnosis of intrauterine pregnancy and therefore the exclusion of ectopic pregnancy in patients suffering from sterility.