𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Transvaginal ultrasound scanning in early pregnancy and correlation with human chorionic gonadotropin levels

✍ Scribed by Dr. Salim Daya; Sheila Woods; Susan Ward; Ray Lappalainen; Chris Caco

Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
330 KB
Volume
19
Category
Article
ISSN
0091-2751

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Pregnancy can be detected early using transvaginal ultrasonography and human chorionic gonadotropin (hCG) measurements. The purpose of this study was to correlate serum hCG levels with transvaginal gestational sac measurements. The mean sac diameter (MSD) and gestational sac diameter (GSD) were calculated as the mean and cube root of the product, repsectively, of three sac dimensions taken at right angles. A nonlinear relationship between hCG (natural logarithm) and MSD and GSD was observed. The data were best fitted by a second order polynomial regression model (r^2^ = 0.98), thereby establishing normal hCG levels for various gestational sac dimensions in early pregnancy.

πŸ“œ SIMILAR VOLUMES

SECOND-TRIMESTER MATERNAL SERUM ALPHA-FE
SECOND-TRIMESTER MATERNAL SERUM ALPHA-FETOPROTEIN, HUMAN CHORIONIC GONADOTROPIN, AND UNCONJUGATED OESTRIOL AFTER EARLY TRANSVAGINAL MULTIFETAL PREGNANCY REDUCTION
✍ ASNAT GROUTZ; AMI AMIT; YUVAL YARON; ISRAEL YOVEL; IGAL WOLMAN; CYRIL LEGUM; JOS πŸ“‚ Article πŸ“… 1996 πŸ› John Wiley and Sons 🌐 English βš– 415 KB πŸ‘ 3 views

Maternal serum alpha-fetoprotein (MSAFP), human chorionic gonadotropin (hCG), and unconjugated oestriol (UE,) are used as second-trimester screening markers for the detection of various fetal abnormalities. Previous studies have suggested that second-trimester MSAFP is consistently elevated after la

Preliminary evidence for associations be
Preliminary evidence for associations between second-trimester human chorionic gonadotropin and unconjugated oestriol levels with pregnancy outcome in Down syndrome pregnancies
✍ Peter A. Benn πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 68 KB

Fifty-six cases of Down syndrome were identified in a population of women who had undergone maternal serum triple marker screening [alpha-fetoprotein (AFP), human chorionic gonadotropin (hCG), and unconjugated oestriol (uE3) analyses]. These affected pregnancies represented all known cases present i