Combined use of serum HCG and sonography in the diagnosis of ectopic pregnancy.
Kadar N, Taylor K, Rosenfield A, Romero R. Combined use of serum HCG and sonography in the diagnosis of ectopic pregnancy. American Journal Of Roentgenology 1983, 141: 609-15. PMID: 6603780, DOI: 10.2214/ajr.141.3.609.Peer-Reviewed Original ResearchConceptsHuman chorionic gonadotropinEctopic pregnancySerum beta-human chorionic gonadotropinBeta-human chorionic gonadotropinSerum human chorionic gonadotropinSerum hCG levelsAccuracy of sonographyEctopic gestationHCG levelsClinical suspicionSonographic examinationSonographic criteriaChorionic gonadotropinSonographic appearancePositive diagnosisPregnancyMonth periodPatientsDiagnosisCombined useSurgeryGestationGonadotropinSonographyPelvis