A model-based prediction for transvaginal ultrasonographic identification of early intrauterine pregnancy
Shapiro B, Escobar M, Makuch R, Lavy G, DeCherney A. A model-based prediction for transvaginal ultrasonographic identification of early intrauterine pregnancy. American Journal Of Obstetrics And Gynecology 1992, 166: 1495-1500. PMID: 1595805, DOI: 10.1016/0002-9378(92)91625-k.Peer-Reviewed Original ResearchConceptsHuman chorionic gonadotropin titersEarly intrauterine pregnancyMHz vaginal transducerIntrauterine pregnancyGestational ageUltrasonographic identificationVaginal transducerNormal intrauterine pregnancyHuman chorionic gonadotropinLogistic regression analysisIntrauterine sacIntrauterine gestationEmbryo transfer programInfertility clinicMIU/Ultrasonographic detectionChorionic gonadotropinPregnancyTitersRegression analysisAgeUltrasonographic equipmentPatientsGestationGonadotropin