OBJECTIVE: To establish normal parameters in early pregnancy through transvaginal
ultrasonography so that gestational age can be determined and to correlate the sonographic …

Pregnancy can be detected early using transvaginal ultrasonography and human chorionic
gonadotropin (hCG) measurements. The purpose of this study was to correlate serum hCG …

A cross-sectional transvaginal ultrasound study was conducted in 137 normal pregnancies
with gestational ages ranging from 5-12 weeks. Several biometric measurements were …

Transvaginal sonography (TVS) is the procedure of choice in evaluating the viability of
embryos early in pregnancy. However, viability based on TVS can be assessed more …

A prospective cross‐sectional study was performed in 248 pregnant women between 5 and
12 weeks' menstrual age with transvaginal sonography to establish biometric charts of the …

The gestational age and the serum human chorionic gonadotropin (hCG) at which an
intrauterine pregnancy can be detected using transvaginal ultrasonography (TVU) is not …

Objective: Our objective was to develop a mathematic model for the prediction of
transvaginal ultrasonographic identification of intrauterine gestation as a function of human …

This prospective cohort study evaluated the performance of transvaginal sonography in the
assessment of first trimester intra-uterine pregnancy. Consecutive women with singleton …

We first performed a vaginosonic scan and then determined the serum human chorionic
gonadotropin (β-hCG) concentration (Second International Standard) in 52 women at an …

Objective To determine whether transvaginal sonographic measurement of gestational sac
diameter in pregnancies 28–42 days from the last menstrual period can predict whether a …