title: The detection of ovulation by intravaginal telemetry.
abstract: Following ovulatory control cycles in four celibate, healthy women, 27 to 34 years of age, basal body temperatures (BBT) were obtained in three cycles, utilizing a transistorized transvaginal telemeter. The electronic signals were collected on an automatically activated cassette receiver and later translated into temperature readings. The results were compared with values obtained simultaneously with a standard metabolic oral thermometer. The vaginal temperatures were consistently lower than the oral readings and offered a more sensitive and reproducible method of obtaining BBT. However, this system is very complex, requiring well-informed, highly motivated patients, and should be viewed currently as an investigative tool.
mesh_terms: D001831:Body Temperature; D005260:Female; D006801:Humans; D010061:Ovulation Detection / Q000379:methods*; D013686:Telemetry; D014621:Vagina