R. Achiron

ORCID: 0000-0002-8294-3672
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About
Contact & Profiles
Research Areas
  • Prenatal Screening and Diagnostics
  • Fetal and Pediatric Neurological Disorders
  • Pregnancy and preeclampsia studies
  • Congenital Heart Disease Studies
  • Urological Disorders and Treatments
  • Congenital Diaphragmatic Hernia Studies
  • Assisted Reproductive Technology and Twin Pregnancy
  • Congenital Anomalies and Fetal Surgery
  • Pediatric Urology and Nephrology Studies
  • Neonatal and fetal brain pathology
  • Maternal and Perinatal Health Interventions
  • Pelvic floor disorders treatments
  • Ectopic Pregnancy Diagnosis and Management
  • Tracheal and airway disorders
  • Maternal and fetal healthcare
  • Pelvic and Acetabular Injuries
  • Parvovirus B19 Infection Studies
  • Cardiovascular Issues in Pregnancy
  • Neonatal Respiratory Health Research
  • Esophageal and GI Pathology
  • Birth, Development, and Health
  • Congenital gastrointestinal and neural anomalies
  • Renal and related cancers
  • Vascular anomalies and interventions
  • Gestational Diabetes Research and Management

Sheba Medical Center
2016-2025

Tel Aviv University
2016-2025

Faculty (United Kingdom)
2023

Beijing Obstetrics and Gynecology Hospital
2023

Meir Medical Center
2022

ORCID
2021

Rabin Medical Center
2021

Baruch College
2020

John Wiley & Sons (United Kingdom)
2019

Hudson Institute
2019

OBJECTIVE--To improve the rate of prenatal detection cardiac malformations in a low risk population. DESIGN--Comparison extended fetal echocardiography with standard four chamber view detecting abnormalities. Extended comprised and visualisation left ventricular outflow tract, right main pulmonary artery its branches. In cases abnormal results complete echocardiographic studies were performed by paediatric cardiologist using M mode, Doppler, colour flow mapping techniques. SETTING--Obstetric...

10.1136/bmj.304.6828.671 article EN BMJ 1992-03-14

Abstract Objective Comprehensive evaluation of the fetal heart has become a major part targeted organ scanning to rule out malformations. Evaluation mediastinal vessels seems be most difficult and time‐consuming examination. Our aim was define evaluate three trachea (3VT) view, novel simple method examine great in mediastinum, its applicability clinical practice echocardiography, while establishing nomograms for cardiac vessel measurements obtained this view. Methods The view examined 379...

10.1046/j.1469-0705.2002.00801.x article EN Ultrasound in Obstetrics and Gynecology 2002-10-01

To compare maternal and neonatal outcomes of term large for gestational age (LGA) pregnancies adequate (AGA) pregnancies.Retrospective analysis.Large university research medical center.All singleton LGA (birthweight ≥ 90th percentile) AGA 10.1-89.9th delivering between 2004 2008.Data collected included age, at delivery, mode birthweight, fetal sex, complications. Birthweight percentiles were determined according to locally derived gender-specific birthweight tables.Comparisons 90-94.9th,...

10.1111/j.1600-0412.2012.01412.x article EN Acta Obstetricia Et Gynecologica Scandinavica 2012-04-04

Background:To compare maternal and neonatal outcomes of term macrosomic adequate for gestational age (AGA) pregnancies.Material/Methods: A retrospective analysis was performed on all singleton (birth weight ≥4000 g) AGA >10 th percentile <4000 pregnancies delivered at our hospital between 2004 2008.Data collected included age, delivery, mode birth weight, fetal gender, complications.Comparisons were made different severities macrosomia (4000-4250 g, 4250-4500 g ≥4500 g). Results:The study...

10.12659/msm.883340 article EN Medical Science Monitor 2012-01-01

To establish reference ranges during human pregnancy for normal fetal corpus callosum dimensions.In a prospective, cross-sectional study of 258 fetuses between 16 and 37 weeks gestation, measurements the length, width, thickness at level anterior mid-body were performed, using high-resolution, transvaginal transabdominal transducers.The mean length was 27.2 (standard deviation, 1.2; 95% confidence interval, 26.02-28.37) mm. Width 5.6 1.6; 5.41-5.82) mm 1.9 0.7; 1.87-2.06) mm, respectively....

10.1046/j.0960-7692.2001.00512.x article EN Ultrasound in Obstetrics and Gynecology 2001-10-01

Abstract Objective To describe a novel, sonographic approach for in‐utero evaluation of normal and abnormal aortic arch. Methods Aortic arch was evaluated by imaging the axial view upper fetal mediastinum. The left defined V‐shaped appearance junction between ductus arteriosus arch, with trachea situated posteriorly. Right double arches were diagnosed when great vessels appeared U‐shaped, intermediate location trachea. Results Between 1997 1999, 18 347 women scanned in three prenatal...

10.1046/j.1469-0705.2002.00850.x article EN Ultrasound in Obstetrics and Gynecology 2002-12-01

To describe the feasibility of diagnosing fetal congenital heart defects by transvaginal ultrasonography during first trimester pregnancy.Pregnant women presenting to Ultrasonographic Unit at Chaim Sheba Medical Center who had a diagnosis were reviewed retrospectively. Attention was paid prenatal ultrasound studies, karyotype, and pathologic examinations.Using high-resolution ultrasonography, we able detect tachycardia (one case), ectopia cordis with ventricular septal defect...

10.1177/875647939401000528 article EN Journal of diagnostic medical sonography 1994-09-01

We present the outcome of a relatively large cohort women with suspected placenta accreta who underwent prophylactic pelvic artery catheterization prior to cesarean section. All pregnant delivered in one tertiary center were included this retrospective study. patients an elective section internal iliac arteries through femoral or brachial approach. Thirty catheterization; was clinically confirmed 25 (83.3%) cases. Embolization performed 23 cases (76.6%) and hysterectomy 2 (8%). Median...

10.1055/s-0030-1247599 article EN American Journal of Perinatology 2010-01-29

Abstract This recommendation document follows the mission of World Association Perinatal Medicine in collaboration with Foundation. We aim to bring together groups and individuals throughout world for standardization implement ultrasound evaluation labor ward improve clinical management labor. Ultrasound can be performed using a transabdominal or transperineal approach depending upon which parameters are being assessed. During imaging, fetal anatomy, presentation, liquor volume, placental...

10.1515/jpm-2022-0160 article EN Journal of Perinatal Medicine 2022-05-27

To establish whether endometrial blood flow and thickness can predict the success rate of in-vitro fertilization, 156 cycles were evaluated. The parameters were: colour power Doppler pulsatility index (PI), resistance (RI), systolic/diastolic ratio (S/D) thickness. Each patient was studied: on day ovum retrievalpickup, embryo transfer. Non-endometrial studied age, oestrestrogen progesterone concentrations, number oocytes, embryos. Pregnancy achieved in 31 cycles. On retrieval, patients who...

10.1093/humrep/14.4.1067 article EN Human Reproduction 1999-04-01

Abstract Purpose The purpose of this study was to evaluate the role color Doppler imaging in diagnosis and management placental chorioangioma. Methods medical records, sonographic reports, sonograms all pregnant women who had masses diagnosed our sonography unit during years 1992 through 2000 been evaluated using both gray‐scale were included study. Subjective evaluation amount distribution intralesional vascularity by made cases. Cases chorioangioma placenta compared with cases hemorrhage...

10.1002/jcu.10072 article EN Journal of Clinical Ultrasound 2002-05-22

To establish a nomogram for fetal vermis measurements during gestation.A prospective cross-sectional study of normal singleton pregnancies. Measurements the width (in axial plane) and height sagittal were performed by high-resolution transabdominal ultrasonography between 18 38 weeks gestation in 256 fetuses.Adequate obtained fetuses. Vermian as function gestational age biparietal diameter expressed regression equations correlation coefficients found to be highly statistically significant (P...

10.1046/j.0960-7692.2001.00621.x article EN Ultrasound in Obstetrics and Gynecology 2002-02-01

Abstract Objective Emerging evidence indicates that chorioamnionitis is associated with a significant decrease in thymic size at birth very low weight (VLBW) preterm infants. The aim of this study was to determine whether decreased fetal thymus histological or clinical patients premature rupture membranes (PROM). Methods Twenty‐one between 24 and 35 weeks gestation PROM were included. Serial ultrasound examinations performed during the latency period, measurements obtained. Small defined as...

10.1002/uog.4022 article EN Ultrasound in Obstetrics and Gynecology 2007-04-30

To evaluate the clinical significance of pubic arch angle (PAA) measured by transperineal ultrasound during prolonged second stage labor.We evaluated prospectively 62 women ≥ 37 weeks gestation with failure to progress in labor. Transperineal (transverse plane) was used measure angle. Correlations fetomaternal characteristics, mode delivery and perinatal outcome were evaluated.The mean PAA 101.1° (± 13.1°; range, 80°-135°). We found a negative correlation maternal age. Patients an...

10.1002/uog.12304 article EN Ultrasound in Obstetrics and Gynecology 2012-09-24

To review our experience with fetal umbilical-portal-systemic venous shunts (UPSVS), to devise an in-utero classification system, and analyze their clinical prognostic characteristics.This was a retrospective of cases UPSVS examined at academic tertiary referral center over the 14-year period from 2001 2014 inclusive. The anatomical origin drainage umbilical, portal, ductus venosus hepatic systems, integrity intrahepatic portal system (IHPVS), were assessed using two- three-dimensional color...

10.1002/uog.14906 article EN Ultrasound in Obstetrics and Gynecology 2015-05-18

Introduction Fetal extrahepatic portosystemic Venous Shunt (FEPSVS) are vascular malformations that divert placental and bowel blood from the liver into systemic circulation. When uncorrected, it can lead to severe pathologic consequences after birth. Objective To report our method of prenatal diagnosis, developing insight regarding counseling, postnatal treatment. Method Retrospective review fetuses diagnosed with FEPSVS, classified Abernethy type I or II based on absence existence...

10.1159/000543529 article EN cc-by-nc Fetal Diagnosis and Therapy 2025-01-17

Abstract Objectives To establish a nomogram for fetal thymus size during gestation. Methods The study is prospective, cross‐sectional evaluation of 403 male and female fetuses between 14 38 weeks normal singleton pregnancies. Measurements were performed by high‐resolution transvaginal ultrasonography 17 weeks' gestation, transabdominal after 18 Results Adequate measurements obtained in all fetuses. Thymus as function gestational age was expressed the regression equation: (square root)...

10.1002/pd.257 article EN Prenatal Diagnosis 2002-02-01
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