hCG discriminatory zoneWhen human chorionic gonadotropin (hCG) level is above the discriminatory value of 1500聽IU/L, but no intrauterine pregnancy is visible on transvaginal ultrasound (TVUS), options such as a complete/incomplete abortion, multiple gestation, or heterotopic gestation should be ...
Conclusion: The discriminatory zone of serum β-HCG for transvaginal ultrasound in Chinese women was 1500 IU / L. It combined with the endometrial thickness( 10mm) has important value in the diagnosis of early ectopic pregnancy. 展开 被引量: 10 ...
As a result, new recommendations have been established for identifying milestones in early singleton pregnancy, including a threshold level of hCG = 390–1000 mIU/mL for visualizing a gestational sac, and a discriminatory value of 3000 IU/mL for identifying all normal intrauterine pregnancies. These...
Ultrasound Obstet Gynecol 2005; 26:770-775. This study showed that varying the discriminatory zone did not significantly improve the detection of ectopic pregnancy. It concluded that a single measurement of serum hCG is not only potentially falsely reassuring but also unhelpful in excluding the ...
Objective This study aimed to determine the usefulness of the Human Chorionic Gonadotropin (hCG) Discriminatory Zone (DZ) (defined as the serum hCG value above which an intrauterine gestational sac is consistently seen on ultrasound in normal pregnancies1) as a diagnostic tool in the evaluation of...
DISCRIMINATORY ZONEVAGINAL ULTRASOUNDECTOPIC PREGNANCYTo determine the probability of detecting the gestational sac of a normal intrauterine pregnancy by vaginal ultrasound at different gestational ages and serum hCG concentrations.Prospective, randomized study.Pregnant human volunteers in a university-based ...
Reply: A Narrow Escape From Methotrexate: The Importance of Correlating Ultrasound Finding with Discriminatory Level of β-hCG and the β-hCG Ratio.doi:10.1002/jum.14896Dmitry FridmanEleanor S. HawkinsPe'er DarScott G. ChudnoffOhad Rotenberg...
Discriminatory hCG zone: its use in the sonographic evaluation for ectopic pregnancy. Obstet Gynecol 1981;58:156-61.Kadar N, DeVore G, Romero R 1981a Discriminatory hCG zone: its use in the sonographic evaluation of ectopic pregnancy. Obstetrics and Gynecology 58(2) 156-161 Kadar N, Caldwell...
Diagnostic accuracy of ultrasound above and below the beta-hCG discriminatory zone. Obstet Gynecol 1999;94:583-7.Barnhart KT, Simhan H, Kamelle SA. Diagnostic accuracy of ultrasound above and below the beta-hCG discriminatory zone. Obstet Gynecol 1999;94:583-7. Comment in Obstet Gyneco...
We read with interest the comments of Drs Kadar, Creinin, and Cheung about our paper.1 Dr Kadar's letter about our article is especially noteworthy since his 1981 paper first introduced the term "hCG discriminatory zone." Dr Kadar expresses concern that our data are "incomplete and ...