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ultrasound fetal

Sumire Terasawa, Asuka Kato, Haruki Nishizawa, Takema Kato, Hikari Yoshizawa, Yoshiteru Noda, Jun Miyazaki, Mayuko Ito, Takao Sekiya, Takuma Fujii, Hiroki Kurahashi
Thanatophoric dysplasia (TD) and achondroplasia (ACH) are allelic disorders caused by a constitutively active mutation in the FGFR3 gene. Because TD is a lethal disorder and ACH is non-lethal, they need to be distinguished after ultrasound identification of fetal growth retardation with short limbs. Accordingly, we have developed a noninvasive prenatal test using cell-free fetal DNA in the maternal circulation to distinguish TD and ACH. A multiplex PCR system encompassing five mutation hotspots in the FGFR3 gene allowed us to efficiently identify the responsible mutation in cell-free DNA in all examined pregnancies with a suspected TD or ACH fetus...
March 14, 2018: Congenital Anomalies
Ruobing Huang, Ana Namburete, Alison Noble
We present a general framework for automatic segmentation of fetal brain structures in ultrasound images inspired by recent advances in machine learning. The approach is based on a region descriptor that characterizes the shape and local intensity context of different neurological structures without explicit models. To validate our framework, we present experiments to segment two fetal brain structures of clinical importance that have quite different ultrasonic appearances-the corpus callosum (CC) and the choroid plexus (CP)...
January 2018: Journal of Medical Imaging
Vanessa Bueno-Lopez, Carmen Fuentelsaz-Gallego, Manel Casellas-Caro, Ana Maria Falgueras-Serrano, Silvia Crespo-Berros, Ana Maria Silvano-Cocinero, Carolina Alcaine-Guisado, Manuela Zamoro Fuentes, Elena Carreras, Carmen Terré-Rull
BACKGROUND: Fetal occiput posterior position in labor is associated with more painful and prolonged labor, and an increase in both maternal and fetal morbidity. The aim of this study is to assess whether the modified Sims position on the side of the fetal spine increases the rotation to occiput anterior position in women with epidural analgesia and a fetus in persistent occiput posterior (POP) position. METHODS: This is an open, randomized controlled, clinical trial...
March 14, 2018: Birth
K van de Kamp, E Pajkrt, A H Zwinderman, J A van der Post, R J M Snijders
OBJECTIVE: The aim of our study was to assess charts proposed for international use in the Intergrowth-21st Project. METHODS: Ultrasound data were collected from 43,923 healthy singleton pregnancies examined at 18-23 weeks of gestation in the Netherlands. Fetal measurements were converted into Z-scores using previous and current Dutch reference charts and Intergrowth charts. The distributions of the Z-scores were compared with the expected standard normal distribution...
March 13, 2018: Fetal Diagnosis and Therapy
Rachel A Pilliod, David R Pettersson, Thomas Gibson, Ladawna Gievers, Amanda Kim, Roya Sohaey, Karen Y Oh, Brian L Shaffer
BACKGROUND: Absence of the CSP on prenatal imaging is historically associated with additional anomalies, however recently cases of isolated, absent CSP have also been identified. This study seeks to assess the accuracy of prenatal imaging in evaluating isolated, absent CSP and to describe the spectrum of clinical outcomes. METHODS: This is a retrospective observational study of all prenatally diagnosed absent CSP cases between 2011 and 2016 at our institution. Cases with additional structural parenchymal abnormalities were excluded...
March 13, 2018: Prenatal Diagnosis
F Bellussi, L Alcamisi, G Guizzardi, D Parma, G Pilu
OBJECTIVES: to investigate the usefulness of visual biofeedback by transperineal ultrasound to improve the pushing coaching during the active second stage of labor in nulliparous women. METHODS: a randomized controlled trial of low risk nulliparous women in the active second stage of labor. Patients were allocated either to coaching aided by visual demonstration of the progress of the fetal head by transperineal ultrasound (sonographic coaching, Group A) or to classical coaching (Group B)...
March 13, 2018: Ultrasound in Obstetrics & Gynecology
Zahra Laleh Eslamian, Elahe Zarean, Maryam Moshfeghi, Zahra Heidari
Background: Early prediction of adverse neonatal outcome would be possible by Doppler impedance indices of middle cerebral artery (MCA), umbilical artery (UmA), and descending aortal artery (AO) that result in decrease neonatal morbidity and mortality rate. The aim of the present study was a determination of optimal value for the ratio of MCA to descending aorta blood flow (MCA/AO) impedance indices and its comparison with the ratio of MCA to UmA (MCA/UmA) impedance indices and their relationship with neonatal outcome...
2018: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
Esra Ozkavukcu, Andelib Babaturk, Nuray Haliloglu, Tuncay Yuce, Tayfun Ucar
Congenital aneurysms and diverticula of the heart are rare anomalies and their prenatal diagnosis is challenging. Fetuses with suspected cardiac aneurysms on ultrasound (US) screening should undergo targeted fetal echocardiography, postnatal imaging, and follow-ups. Herein, we describe the second trimester US scan and postnatal cardiac magnetic resonance imaging (MRI) findings of a baby girl with concurrent septal and right ventricular cardiac aneurysms. Other cardiac and extra-cardiac structures were normal...
February 2018: Eurasian Journal of Medicine
Fabian Kording, Jin Yamamura, Manuela Tavares de Sousa, Christian Ruprecht, Erik Hedström, Anthony H Aletras, P Ellen Grant, Andrew J Powell, Kai Fehrs, Gerhard Adam, Hendrik Kooijman, Bjoern P Schoennagel
BACKGROUND: Fetal cardiovascular magnetic resonance (CMR) imaging may provide a valuable adjunct to fetal echocardiography in the evaluation of congenital cardiovascular pathologies. However, dynamic fetal CMR is difficult due to the lack of direct in-utero cardiac gating. The aim of this study was to investigate the effectiveness of a newly developed Doppler ultrasound (DUS) device in humans for fetal CMR gating. METHODS: Fifteen fetuses (gestational age 30-39 weeks) were examined using 1...
March 12, 2018: Journal of Cardiovascular Magnetic Resonance
Nan Zhao, Jie Qiu, Shuangge Ma, Yaqun Zhang, Xiaojuan Lin, Zhongfeng Tang, Honghong Zhang, Huang Huang, Ning Ma, Yuan Huang, Michelle L Bell, Qing Liu, Yawei Zhang
Background: Limited epidemiological studies have investigated the relationship between prenatal exposure to ambient particulate matter and risk of abnormal fetal growth, and have reached inconclusive results. No study has been conducted in areas with very high air pollution levels. We investigated the hypothesis that exposure to high levels of particulate matter with aerodynamic diameter no larger than 10 µm (PM10) during pregnancy increases the risk of abnormal fetal growth. Methods: A birth cohort study was performed in Lanzhou, China, 2010-12, including 8877 pregnant women with 18 583 ultrasound measurements of four fetal growth parameters during pregnancy, including biparietal diameter (BPD), femur length (FL), head circumference (HC) and abdominal circumference (AC)...
February 26, 2018: International Journal of Epidemiology
Elizabeth Snyder, Ahmet Baschat, Thierry A G M Huisman, Aylin Tekes
OBJECTIVE: The purpose of this article is to present illustrative cases highlighting the value of fetal MRI as a problem-solving tool in evaluating anomalies of the fetal chest, abdomen, and pelvis that are being evaluated for fetal therapy. CONCLUSION: Fetal MRI is an increasingly valuable noninvasive tool for evaluating fetal anomalies in the age of fetal therapy. Although ultrasound remains the primary diagnostic imaging modality, MRI can provide additional information to assist parental counseling and patient care...
March 12, 2018: AJR. American Journal of Roentgenology
Camille Sauvageot, Jean-Michel Faure, Eve Mousty, Anaïg Flandrin, Dominique Forgues, Olivier Prodhomme, Florent Fuchs
OBJECTIVES: The aim of this study was to evaluate the prevalence, the prenatal and postnatal evolution of isolated fetal splenic cysts. METHODS: All cases of suspected fetal splenic cyst or abdominal unidentified cyst discovered during routine ultrasound scan, from 2007 to 2017, and referred to a French tertiary care Center, were retrospectively collected. For each case, several prenatal parameters and postnatal evolution were reported. RESULTS: Among 5450 cases of fetal anomalies, 14 patients (0...
March 12, 2018: Prenatal Diagnosis
S Lindsay Wood, John Owen, Sheri M Jenkins, Lorie M Harper
INTRODUCTION:  Although guidelines recommend repeat ultrasound in the setting of an incomplete fetal anatomic survey, the clinical utility of this practice has not been established. As such, we aimed to assess the yield of repeat ultrasound for anomaly detection following an incomplete survey. MATERIALS AND METHODS:  This is a retrospective cohort study of all singletons who underwent a midtrimester anatomic ultrasound at University of Alabama at Birmingham (UAB) from 2006 to 2014...
February 8, 2018: American Journal of Perinatology
Amihood Singer, Idit Maya, Arie Koifman, Nadra Nasser Samra, Hagit N Baris, Tzipora Falik-Zaccai, Shay Ben Shachar, Lena Sagi-Dain
INTRODUCTION: Fetal echogenic bowel is a frequent sonographic finding, demonstrated in about 1% of pregnancies. The advised evaluation of fetal echogenic bowel includes maternal serology, genetic testing for cystic fibrosis, detailed sonographic anatomic survey, and invasive prenatal testing for fetal chromosomal aberrations. The objective of our study was to evaluate the risk for clinically significant chromosomal microarray analysis (CMA) findings in pregnancies with isolated echogenic bowel...
March 6, 2018: Early Human Development
Ahmed M Maged, Ehab M Soliman, Ali A Abdellatif, Mohamed Nabil, Omar I Said, Mohamed N Mohesen, Ayman N Raslan, Sahar M Y Elbaradie
BACKGROUND: Fetal head attitude has a substantial impact on labor progress and outcome. Fetal head deflexion is basically diagnosed by digital vaginal examination during labor. OBJECTIVES: To assess the effect of the fetal occiput-spine angle (OSA) measured through transabdominal ultrasound during the first stage of labor on the progress and outcome of labor. MATERIAL AND METHODS: A prospective cohort study conducted on 400 women with term uncomplicated singleton pregnancy with occipitoanterior position during active labor...
March 7, 2018: Journal of Maternal-fetal & Neonatal Medicine
José Morales-Roselló, Asma Khalil, Victoria Fornés-Ferrer, Alfredo Perales-Marín
OBJECTIVE: To study the accuracy of the cerebroplacental ratio (CPR) for the detection of intrapartum fetal compromise (IFC) in fetuses growing over the 10th centile. METHODS: This was a prospective study of 569 nonsmall fetuses attending the day hospital unit of a tertiary hospital that underwent an ultrasound examination at 36-40 weeks, and were delivered within 4 weeks of examination. IFC was defined as a composite of: abnormal intrapartum fetal heart rate or intrapartum fetal scalp pH < 7...
March 7, 2018: Journal of Maternal-fetal & Neonatal Medicine
J Pavlíček, E Klásková, E Doležálková, D Matura, R Špaček, T Gruszka, S Polanská, M Procházka
OBJECTIVE: To audit the development and success rate of prenatal detection of congenital heart defects (CHDs), and to evaluate the effectiveness of diagnostics performed in standardized scanning planes. SETTING: Department of Pediatrics, University Hospital Ostrava. DESIGN: Retrospective study. METHODS: Ultrasound examination of fetal heart (fetal echocardiography) was performed in the second trimester pregnancy. The observed region was the Moravian-Silesian region; the assessment was performed in the retrospective study performed between 2000- 2016...
2018: Ceská Gynekologie
Ana I L Namburete, Weidi Xie, Mohammad Yaqub, Andrew Zisserman, J Alison Noble
Methods for aligning 3D fetal neurosonography images must be robust to (i) intensity variations, (ii) anatomical and age-specific differences within the fetal population, and (iii) the variations in fetal position. To this end, we propose a multi-task fully convolutional neural network (FCN) architecture to address the problem of 3D fetal brain localization, structural segmentation, and alignment to a referential coordinate system. Instead of treating these tasks as independent problems, we optimize the network by simultaneously learning features shared within the input data pertaining to the correlated tasks, and later branching out into task-specific output streams...
February 21, 2018: Medical Image Analysis
Arkadiusz Krzyżanowski, Dariusz Swatowski, Tomasz Gęca, Maciej Kwiatek, Aleksandra Stupak, Sławomir Woźniak, Anna Kwaśniewska
BACKGROUND: Persistent right umbilical vein (PRUV) is usually an isolated finding but it may be accompanied by other fetal malformations. AIMS: We aimed to determine the incidence of prenatally diagnosed PRUV in a referral population, assess the neonatal outcome and discuss the findings together with those from previous publications. MATERIALS AND METHODS: A total of 2360 women with low-risk singleton pregnancies were examined in the second and third trimesters...
March 2, 2018: Australian & New Zealand Journal of Obstetrics & Gynaecology
Dan Zhao, Ailu Cai, Jun Zhang, Yan Wang, Bing Wang
OBJECTIVES: Fetal cerebellar vermis may be assessed by ultrasound (US) or magnetic resonance imaging (MRI), and median-plane views are best for evaluation. The purpose of this study was to compare measurements of normal fetal vermis at 24-32 weeks of gestation obtained in median plane by transabdominal 2D-US, 3D-US, and MRI. METHODS: A prospective study was conducted, examining normal singleton fetuses between 24 and 32 weeks of gestation. Within a 24-h period, median-plane views of posterior fossa were generated using 2D-US, 3D-US, and MRI...
March 2018: European Journal of Radiology
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