title: Imaging in ectopic pregnancy.
abstract: The various imaging techniques that have been used to establish the site of an early pregnancy are hysterosalpingography, ultrasonography, duplex Doppler flow studies, computed tomography and magnetic resonance imaging. Ultrasonography and Doppler flow studies have emerged as the most important imaging techniques in pregnancy. When used in conjunction with beta-human chorionic gonadotropin levels, they exhibit high sensitivity and specificity for ectopic pregnancy. Hysterosalpingography in pregnancy has been abandoned, while computed tomography and magnetic resonance imaging are indicated only rarely.
authors.affiliation: Department of Obstetrics and Gynecology, Yale University School of Medicine, New Haven, Connecticut 06510.
authors.forename: A S
authors.initials: AS
authors.lastname: Penzias
authors.forename: P L
authors.initials: PL
authors.lastname: Huang
mesh_terms: D003937:Diagnosis, Differential; D003952:Diagnostic Imaging / Q000379:methods* / Q000592:standards; D005260:Female; D006801:Humans; D007047:Hysterosalpingography / Q000592:standards; D008279:Magnetic Resonance Imaging / Q000592:standards; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000175:diagnosis* / Q000453:epidemiology; D014057:Tomography, X-Ray Computed / Q000592:standards; D016216:Ultrasonography, Prenatal / Q000592:standards