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Fetal doppler ultrasound

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https://www.readbyqxmd.com/read/28546238/persistent-fetal-lobulation-of-kidney-mimicking-renal-tumour
#1
Syed Muhammad Nazim, Muhibullah Bangash, Basit Salam
Renal pseudotumour is a term coined to describe conditions of renal anatomic variants that simulate focal renal pathology like a tumour on ultrasonography. These include persistent fetal lobulation, hypertrophy of Bertin columns and dromedary humps. We report a case of a 30-year-old nulliparous woman who was managed in gynaecology clinic for menorrhagia and was subsequently referred to us for management of recurrent urinary tract infections. The clinical examination was normal and on ultrasound scan, she was found to have multiple enlarged heterogeneous solid masses in both kidneys with significantly increased vascularity, suspicious for neoplastic lesions...
May 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28545116/n-terminal-pro-b-type-natriuretic-peptide-in-amniotic-fluid-of-fetuses-with-known-or-suspected-cardiac-load
#2
Christina Leufgen, Ulrich Gembruch, Birgit Stoffel-Wagner, Rolf Fimmers, Waltraut M Merz
BACKGROUND: Myocardial dysfunction occurs in a variety of fetal disorders. Findings from adult cardiology, where n-terminal pro-B-type natriuretic peptide (nt-proBNP) is an established biomarker of left ventricular dysfunction have been extended to fetal life. Since fetal blood sampling is technically challenging we investigated amniotic fluid nt-proBNP for its suitability to diagnose fetal myocardial dysfunction. METHODS: Ultrasound, Doppler examination and echocardiography was applied to classify cases and controls...
2017: PloS One
https://www.readbyqxmd.com/read/28544620/phenotyping-cardiac-and-structural-birth-defects-in-fetal-and-newborn-mice
#3
REVIEW
Xiaoqin Liu, Andrew J Kim, William Reynolds, Yijen Wu, Cecilia W Lo
Mouse models are invaluable for investigating the developmental etiology and molecular pathogenesis of structural birth defects. While this has been deployed for studying a wide spectrum of birth defects, mice are particularly valuable for modeling congenital heart disease, given they have the same four-chamber cardiac anatomy as in humans. We have developed the use of noninvasive fetal ultrasound together with micro-computed tomography (micro-CT) imaging for high throughput phenotyping of mice for congenital heart defects (CHD) and other developmental anomalies...
May 22, 2017: Birth Defects Res
https://www.readbyqxmd.com/read/28514879/growth-restriction-identifying-fetuses-at-risk
#4
Heidi K Leftwich, Bethany Stetson, Bethany Sabol, Katherine Leung, Judith U Hibbard, Isabelle Wilkins
PURPOSE: Examine risks of intrauterine growth restriction (IUGR) and composite perinatal outcomes with estimated fetal weights (EFW) 10-20(th)%, and compare outcomes using umbilical artery Doppler (UAD). MATERIALS AND METHODS: Retrospective, cohort evaluating ultrasound (US) EFW 10th-20(th)%, between 2002-2012. Cases were identified with EFW % 10-20. Controls, EFW >20(th)% were obtained for each case, matched by gestational age and US date. Unadjusted and adjusted logistic regression was used for outcomes...
May 17, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28511860/first-trimester-fetal-echocardiography-identification-of-cardiac-structures-for-screening-from-6-to-13%C3%A2-weeks-gestational-age
#5
Darren Hutchinson, Angela McBrien, Lisa Howley, Yuka Yamamoto, Priya Sekar, Tarek Motan, Venu Jain, Winnie Savard, Lisa K Hornberger
BACKGROUND: Early fetal echocardiography (FE), performed at 12 to 16 weeks' gestational age (GA), can be used to screen for fetal heart disease akin to that routinely performed in the second trimester. The efficacy of FE at earlier GAs has not been as well explored, particularly with recent advances in ultrasound technology. The aim of this study was to evaluate the efficacy of early FE in assessing fetal heart structure, and the added benefit of color Doppler (CD), from as early as 6 weeks through to 13(+6) weeks' GA...
May 13, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28509324/three-dimensional-neurosonography-a-novel-field-in-fetal-medicine
#6
Michał Lipa, Ritsuko Kimata Pooh, Mirosław Wielgoś
Neurosonography is a promising technique for prenatal diagnosis, combining features of ultrasound imaging with fetal neurology. The brain is a three-dimensional structure, therefore observing brain structure in the three basic planes (sagittal, coronal and axial) is mandatory. The anterior fontanelle and sagittal suture may serve as acoustic ultrasound windows in the transvaginal brain scan, allowing to obtain high-resolution neuroimages of the intracranial structures. Furthermore, three-dimensional (3D) ultrasound combined with the transvaginal brain approach provides detailed and sophisticated neuroimages...
2017: Ginekologia Polska
https://www.readbyqxmd.com/read/28455084/recipient-umbilical-artery-elongation-redundancy-in-twin-twin-transfusion-syndrome
#7
Roopali Donepudi, Lovepreet K Mann, Christoph Wohlmuth, Anthony Johnson, Michael W Bebbington, Kenneth J Moise, David S Boudreaux, Helena Gardiner, Ramesha Papanna
BACKGROUND: Chronic hypertension in adults causes arterial lengthening in major arteries, but the effects of early fetal hypertension on the twin-twin transfusion syndrome (TTTS) recipient's vascular architecture remains unknown. OBJECTIVES: We hypothesize that arterial cord redundancy is related to recipient hypertension and subsequent heart failure. Our objectives were: 1) to establish a 3D color Doppler ultrasound method of measuring umbilical arterial (UA) length relative to its corresponding venous segment in the Umbilical cord using AV-angle, 2) to compare recipient AV-angle to gestational age-matched controls, and 3) to test the association of AV-angle with recipient heart failure...
April 25, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28443480/adverse-placental-perfusion-and-pregnancy-outcomes-in-a-new-nonhuman-primate-model-of-gestational-protein-restriction
#8
Victoria H J Roberts, Jamie O Lo, Katherine S Lewandowski, Peter Blundell, Kevin L Grove, Christopher D Kroenke, Elinor L Sullivan, Charles T Roberts, Antonio E Frias
Maternal malnutrition during pregnancy impacts fetal growth, with developmental consequences that extend to later life outcomes. In underdeveloped countries, this malnutrition typically takes the form of poor dietary protein content and quality, even if adequate calories are consumed. Here, we report the establishment of a nonhuman primate model of gestational protein restriction (PR) in order to understand how placental function and pregnancy outcomes are affected by protein deficiency. Rhesus macaques were assigned to either a control diet containing 26% protein or switched to a 13% PR diet prior to conception and maintained on this PR diet throughout pregnancy...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28436166/perinatal-loss-at-term-the-role-of-uteroplacental-and-fetal-doppler-assessment
#9
Caitriona Monaghan, Julia Binder, Baskaran Thilaganathan, José Morales-Roselló, Asma Khalil
OBJECTIVE: To examine the association of uterine artery (UtA) Doppler indices and cerebroplacental ratio (CPR) on perinatal outcome at term. METHODS: This retrospective cohort study conducted in a single tertiary referral centre included all singleton pregnancies undergoing ultrasound assessment in the third trimester, which subsequently delivered at term. Fetal biometry and Dopplers including the umbilical artery (UA), middle cerebral artery (MCA) and uterine artery were recorded...
April 24, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28424505/usefulness-of-serum-fetuin-a-level-as-a-marker-of-erectile-dysfunction
#10
W Kandeel, W El-Shaer, A Sebaey, A A Abou-Taleb, A Fathy, B Elmohamady, A I Mansour
This study aimed to evaluate the correlation between serum levels of fetuin-A and the presence and severity of erectile dysfunction (ED) in Egyptian population. The study was performed on 60 ED patients and 20 age-matched healthy controls. A comprehensive medical history and complete physical examination were obtained and performed in all participants. ED and its severity were assessed via International Index of Erectile Function (IIEF-5). Doppler ultrasound, fasting blood glucose level, complete lipid profile, serum total testosterone (TT) and serum fetuin-A were performed...
April 20, 2017: International Journal of Impotence Research
https://www.readbyqxmd.com/read/28412669/measurement-of-frontal-lobe-volume-and-thalamic-volume-in-fetuses-with-congenital-heart-disease-at-different-gestational-weeks-using-three-dimensional-ultra-sonography-and-its-clinical-value
#11
Zhu Li-Fei, Liu Hong-Xiong, H E Ying
Our study aimed to investigate the measurement of frontal lobe volume and thalamic volume in fetuses with congenital heart disease (CHD) at different gestational weeks using three dimensional (3-D) ultrasonography and its clinical value. Then, 238 pregnant women who received obstetric ultrasonography in ultrasound department of Internal Medicine of our hospital were enrolled between March 2013 to April 2014. In this study, 85 fetuses were diagnosed to develop CHD by prenatal fetal echocardiography, and the other 153 fetuses were normal...
November 2016: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28403927/relevance-of-routine-doppler-sampling-at-the-two-umbilical-arteries-in-the-follow-up-of-dichorionic-twin-pregnancies-with-intrauterine-growth-restricted-fetuses
#12
A J Vivanti, E Lecarpentier, A-G Cordier, F Proulx, V Tsatsaris, A Benachi
OBJECTIVE: The aim of this study is to assess if the presence of bilateral absent or reverse end-diastolic velocity (AREDV) indicates a poorer prognosis than unilateral AREDV in dichorionic-diamniotic twin pregnancies complicated by intrauterine growth restriction. METHODS: A prospective observational study of 36 dichorionic-diamniotic twin pregnancies complicated by intrauterine growth restriction. One hundred and fifty seven ultrasound (US) examinations were performed...
March 2017: J Gynecol Obstet Hum Reprod
https://www.readbyqxmd.com/read/28391080/nasal-glial-heterotopia-or-congenital-hemangioma-a-case-report
#13
R Lartizien, C Durand, S Blaise, B Morand
Nasal glial heterotopia (NGH) is a rare benign tumor of the median line. We describe the case of a child presenting a lateral nasal mass. The characteristics of the prenatal ultrasound and the postnatal clinical examination argued in favor of a congenital hemangioma (CH). The MRI performed at 6 weeks of life suggested glial heterotopia. This diagnosis was confirmed by the pathological analysis. Congenital hemangiomas and nasal glial heterotopies have similar clinical presentations. Prenatal ultrasound diagnosis between NGH and CH is difficult...
April 5, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28364018/ultrasound-detection-of-altered-placental-vascular-morphology-based-on-hemodynamic-pulse-wave-reflection
#14
Anum Rahman, Yu-Qing Zhou, Yohan Yee, Jun Dazai, Lindsay S Cahill, John Kingdom, Christopher K Macgowan, John G Sled
Abnormally pulsatile umbilical artery (UA) Doppler ultrasound velocity waveforms are a hallmark of severe or early onset placental-mediated intrauterine growth restriction (IUGR), whereas milder late onset IUGR pregnancies typically have normal UA pulsatility. The diagnostic utility of these waveforms to detect placental pathology is thus limited and hampered by factors outside of the placental circulation, including fetal cardiac output. In view of these limitations, we hypothesized that these Doppler waveforms could be more clearly understood as a reflection phenomenon and that a reflected pulse pressure wave is present in the UA that originates from the placenta and propagates backward along the UA...
May 1, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28355685/-clinical-outcome-and-placenta-characteristics-of-spontaneous-twin-anemia-polycythemia-sequence
#15
X J Wang, L Y Li, Y Wei, Y Y Zhao, P B Yuan
Objective: To investigate the clinical outcome and placental characteristics of spontaneous twin anemia-polycythemia sequence (sTAPS). Methods: Twelve cases with sTAPS delivered in Peking University Third Hospital from May 2013 to August 2016. The data of ultrasound characteristics, gestational age at delivery, and 1 minute Apgar score were analyzed, retrospectively. Placental superficial vascular anastomoses, placental territory discordance and the ratio of umbilical cords insertion distance to the longest placental diameter were also analyzed...
March 25, 2017: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/28345186/use-of-the-fetal-myocardial-performance-index-in-assessment-and-management-of-the-small-for-gestational-age-fetus-a-cohort-and-nested-case-control-study
#16
Amanda Henry, Jennifer Alphonse, Dominique Tynan, Alec W Welsh
OBJECTIVES: To assess the clinical utility of the fetal Myocardial Performance Index (MPI) in assessment and management of the fetus referred to Fetal Medicine services for Small for Gestational Age/Intrauterine Growth Restriction (SGA/IUGR). METHODS: Prospective cohort study in metropolitan Australia. Consenting patients referred at 24-38 weeks' gestation for suspected singleton SGA/IUGR (estimated fetal weight [EFW] <10(th) centile for gestation and/or abnormal umbilical artery [UA] Doppler) had MPI performed in addition to routine measures, and were followed through to birth...
March 27, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28330415/novel-detection-of-placental-insufficiency-by-magnetic-resonance-imaging-in-the-nonhuman-primate
#17
Jamie O Lo, Victoria H J Roberts, Matthias C Schabel, Xiaojie Wang, Terry K Morgan, Zheng Liu, Colin Studholme, Christopher D Kroenke, Antonio E Frias
The placenta is a vital organ necessary for healthy fetal development. Placental insufficiency creates an in utero environment where the fetus is at risk of insufficient oxygen or nutrient exchange. This is primarily caused by impairment of either maternal or fetal circulation or vascular thrombosis such as placental infarction. As a result of placental dysfunction, affected fetuses may be growth restricted, neurologically impaired, and at risk of increased morbidity and mortality. In a cohort of 4 pregnant Rhesus macaques, we describe antenatal detection of naturally occurring intrauterine growth restriction (IUGR) and aberrant fetal neurodevelopment in 1 animal...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28324997/assessing-the-development-of-fetal-myocardial-function-by-a-novel-doppler-myocardial-performance-index
#18
Ahsan H Khandoker, F Marzbanrad, Y Kimura, Saeed Al Nuaimi, M Palaniswami
Doppler-derived myocardial performance index are used to assess aspects of systolic and diastolic function in adult as well as fetal heart. The Tei Index (TI) is a useful and non-invasive tool. The aim of this study was to determine normal values of fetal left ventricular (LV) TI in early (16-32 weeks) and late trimester (35-41 weeks) fetuses and to develop a new myocardial performance index (K-index; KI) which focuses on fetal diastolic interval when oxygenated blood from the placenta filled in the LV. Simultaneous recordings of Doppler Ultrasound Signal (DUS) of the LV outflow tracts and fetal electrocardiogram signals were obtained in 55 early- and late-trimester fetuses...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28306539/three-dimensional-power-doppler-of-the-placenta-and-its-clinical-applications
#19
Kelly Yamasato, Ivica Zalud
The aim of this review is to discuss three dimensional (3D) power Doppler of the placenta and its clinical applications. There is a strong clinical need to develop noninvasive, simple and widely available methods of evaluating in vivo placental function to assess fetal wellbeing. While conventional ultrasound is a proven tool in the evaluation of fetal structural anomalies and health, its ability to assess placental function, especially prior to the onset of fetal compromise, is the subject of ongoing investigation...
March 17, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28298706/an-assessment-of-fetal-cerebral-and-hepatic-perfusion-in-normal-pregnancy-and-pre-eclampsia-using-three-dimensional-ultrasound
#20
Susan Addley, Amanda Ali, Stephen Ong
BACKGROUND: Pre-eclampsia and placental causes of intrauterine growth restriction (IUGR) are part of the same spectrum of disorders. In IUGR, there is preferential shunting of blood to the fetal brain at the expense of other organs. We wanted to demonstrate that this also occurs in pre-eclampsia using three dimensional (3D) ultrasound. The 3D indices of perfusion are: flow index (FI), vascular index (VI) and vascularisation flow index (VFI) which reflect tissue vascularity and flow intensity...
January 2017: Ulster Medical Journal
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