Verification Bias Correction in Endometrial Abnormalities in Infertile Women Referred to Royan Institute Using Statistical Methods.

Background: Verification bias is a common bias in the diagnostic accuracy of diagnostic tests and occurs when a number of individuals do not perform the gold standard test. In this study, we review the correcting methods of verification bias.

Methods: In a cross-sectional study in 2020, 567 infertile women who were referred to Royan Research Institute were evaluated.

Unilateral Kidney Agenesis and other Kidney Anomalies in Infertile Men with Congenital Bilateral Absence of Vas deferens: A Cross-Sectional Study.

We aim to determine the prevalence of renal anomalies in patients with congenital vas deferens agenesis referred for infertility assessment.
Materials and Methods: This cross-sectional study was carried out on eligible infertile men from 2016 to 2019. Infertile men who were suspected of obstructive azoospermia were referred to the Ultrasound ward and they were examined by abdominal ultrasound for detecting the genital and kidney anomalies.

Does amniotic fluid sludge result in preterm labor in pregnancies after assisted reproduction technology? A nested Case - Control study.

Objective: to investigate the relationship between the Amniotic fluid Sludge exposure during pregnancy and the Preterm Labor (PTL) in pregnant women who had undergone Assisted Reproductive Technology procedures (ART) in Royan institute.

Materials And Methods: It was a nested case-control study that was conducted on 110 eligible pregnant women who had undergone IVF procedure in Royan institute, Tehran, Iran. The final sample size was 63 subjects with Amniotic fluid Sludge and 67 subjects with normal Amniotic fluid.

Outcome of isolated fetal choroid plexus cyst detected in prenatal sonography among infertile patients referred to Royan Institute: A 3-year study.

Background: Several studies have assessed the correlation of fetal choroid plexus cyst (CPC) and the risk of congenital anomalies, but few ones have discussed isolated CPC (with no other abnormal sonographic finding).

Objective: The aim of this study was to determine the outcome of isolated fetal choroid plexus cyst and to specify its clinical significance.

Materials And Methods: This cross sectional study was carried out at Royan Institute in Tehran, Iran, between April 2009 and December 2012.

Comparison of two dimensional and live three dimensional ultrasounds for the diagnosis of septated uterus.

Background: Traditionally, septate uterus was diagnosed with invasive method like hysterosalpingography and hysteroscopy. Nowadays transvaginal ultrasonography was reported to be a sensitive tool for detection of septate uterus too.

Objective: The objective of the present study was to evaluate the application of two dimensional ultrasound (2-DUS) and real time three dimensional ultrasound (3-DUS) in differentiating various type of septated uterus.

Diagnostic accuracy of transvaginal sonography in the detection of uterine abnormalities in infertile women.

Background: Accurate diagnosis of uterine abnormalities has become a core part of the fertility work-up. A variety of modalities can be used for the diagnosis of uterine abnormalities.

Objectives: This study was designed to assess the diagnostic accuracy of transvaginal ultrasonography (TVS) in uterine pathologies of infertile patients using hysteroscopy as the gold standard.