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Fetal Echo

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https://www.readbyqxmd.com/read/29327361/myocardial-injury-in-fetal-aortic-stenosis-insights-from-amniotic-fluid-analysis
#1
Kevin G Friedman, Lynn A Sleeper, Raina N Fichorova, Taylor Weilnau, Wayne Tworetzky, Louise E Wilkins-Haug
OBJECTIVE: Fetal aortic stenosis (AS) imposes pressure load on the developing left ventricle (LV) and leads to derangements in myocardial structure and function via mechanisms that are not well characterized. METHODS: We compared amniotic fluid NT-BNP and troponin levels in fetuses with AS prior to fetal valvuloplasty and controls. We estimated correlations between NT-BNP and fetal echo parameters and identify NT-BNP cutoff associated with biventricular outcome RESULTS: Median NT-BNP level was higher in fetal AS than controls (3858 vs 1737 pg/ml, p<0...
January 11, 2018: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29281153/microvascular-perfusion-of-the-placenta-developing-fetal-liver-and-lungs-assessed-with-intravoxel-incoherent-motion-imaging
#2
András Jakab, Ruth L Tuura, Raimund Kottke, Nicole Ochsenbein-Kölble, Giancarlo Natalucci, Thi Dao Nguyen, Christian Kellenberger, Ianina Scheer
BACKGROUND: In utero intravoxel incoherent motion magnetic resonance imaging (IVIM-MRI) provides a novel method for examining microvascular perfusion fraction and diffusion in the developing human fetus. PURPOSE: To characterize gestational changes in the microvascular perfusion fraction of the placenta, fetal liver, and lungs using IVIM-MRI. STUDY TYPE: Retrospective, cross-sectional study. SUBJECTS: Fifty-five datasets from 33 singleton pregnancies were acquired (17-36 gestational weeks)...
December 27, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29251798/lateral-ventricular-volume-measurement-by-3d-mr-hydrography-in-fetal-ventriculomegaly-and-normal-lateral-ventricles
#3
Si-Xiu Zhao, Yun-Hua Xiao, Fu-Rong Lv, Zhi-Wei Zhang, Bo Sheng, Hong-Li Ma
BACKGROUND: In fetuses with prenatal ventriculomegaly (VM), ventricular volume on MRI has been shown to correlate with poor postnatal outcomes and in utero death. 3D magnetic resonance hydrography (MRH) has been widely used for MR cholangiopancreatography. PURPOSE: To investigate the reliability of 3D MRH for lateral ventricular volume measurement in fetuses with VM and normal lateral ventricles, using manual multisection planimetry (MSP) as a reference standard...
December 18, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29193244/an-efficient-sequence-for-fetal-brain-imaging-at-3t-with-enhanced-t1-contrast-and-motion-robustness
#4
Giulio Ferrazzi, Anthony N Price, Rui Pedro A G Teixeira, Lucilio Cordero-Grande, Jana Hutter, Ana Gomes, Francesco Padormo, Emer Hughes, Torben Schneider, Mary Rutherford, Maria Kuklisova Murgasova, Joseph V Hajnal
PURPOSE: Ultrafast single-shot T2 -weighted images are common practice in fetal MR exams. However, there is limited experience with fetal T1 -weighted acquisitions. This study aims at establishing a robust framework that allows fetal T1 -weighted scans to be routinely acquired in utero at 3T. METHODS: A 2D gradient echo sequence with an adiabatic inversion was optimized to be robust to fetal motion and maternal breathing optimizing grey/white matter contrast at the same time...
November 28, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29141840/cerebral-oxygenation-measurements-by-magnetic-resonance-imaging-in-fetuses-with-and-without-heart-defects
#5
Mette H Lauridsen, Niels Uldbjerg, Tine B Henriksen, Olav B Petersen, Brian Stausbøl-Grøn, Niels B Matthiesen, David A Peters, Steffen Ringgaard, Vibeke E Hjortdal
BACKGROUND: Children with major congenital heart defects are risking impaired cerebral growth, delayed cerebral maturation, and neurodevelopmental disorders. We aimed to compare the cerebral tissue oxygenation of fetuses with major heart defects to that of fetuses without heart defects as estimated by the magnetic resonance imaging modality T2*. T2* is low in areas with high concentrations of deoxyhemoglobin. METHODS AND RESULTS: At gestational age mean 32 weeks (early) and mean 37 weeks (late), we compared the fetal cerebral T2* in 28 fetuses without heart defects to that of 15 fetuses with major heart defects: transposition of the great arteries (n=7), coarctation of the aorta/hypoplastic aortic arch (n=5), tetralogy of Fallot (n=1), hypoplastic right heart (n=1), and common arterial trunk (n=1)...
November 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29135072/measuring-human-placental-blood-flow-with-multidelay-3d-grase-pseudocontinuous-arterial-spin-labeling-at-3t
#6
Xingfeng Shao, Dapeng Liu, Thomas Martin, Teresa Chanlaw, Sherin U Devaskar, Carla Janzen, Aisling M Murphy, Daniel Margolis, Kyunghyun Sung, Danny J J Wang
BACKGROUND: Placenta influences the health of both a woman and her fetus during pregnancy. Maternal blood supply to placenta can be measured noninvasively using arterial spin labeling (ASL). PURPOSE: To present a multidelay pseudocontinuous arterial spin labeling (pCASL) combined with a fast 3D inner-volume gradient- and spin-echo (GRASE) imaging technique to simultaneously measure placental blood flow (PBF) and arterial transit time (ATT), and to study PBF and ATT evolution with gestational age during the second trimester...
November 14, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29115686/inner-volume-echo-volumar-imaging-ivevi-for-robust-fetal-brain-imaging
#7
Rita G Nunes, Giulio Ferrazzi, Anthony N Price, Jana Hutter, Andreia S Gaspar, Mary A Rutherford, Joseph V Hajnal
PURPOSE: Fetal functional MRI studies using conventional 2-dimensional single-shot echo-planar imaging sequences may require discarding a large data fraction as a result of fetal and maternal motion. Increasing the temporal resolution using echo volumar imaging (EVI) could provide an effective alternative strategy. Echo volumar imaging was combined with inner volume (IV) imaging (IVEVI) to locally excite the fetal brain and acquire full 3-dimensional images, fast enough to freeze most fetal head motion...
November 8, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29096572/prenatal-cardiac-magnetic-resonance-imaging-of-right-aortic-arch-with-mirror-image-branching-and-retroesophageal-left-ductus-arteriosus
#8
Su-Zhen Dong, Ming Zhu
OBJECTIVE: To evaluate the utility of fetal cardiac magnetic resonance imaging (MRI) in diagnosing right aortic arch with mirror image branching and retroesophageal left ductus arteriosus (RLDA). METHODS: This retrospective study included six infants diagnosed with right aortic arch with mirror image branching and RLDA postnatally by cardiac computed tomography (CT) that had fetal echocardiography (echo) and MRI initially performed. The six fetal MR cases were examined using 1...
November 2, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29091749/the-protein-corona-around-nanoparticles-facilitates-stem-cell-labeling-for-clinical-mr-imaging
#9
Hossein Nejadnik, Seyed-Meghdad Taghavi-Garmestani, Steven J Madsen, Kai Li, Saeid Zanganeh, Phillip Yang, Morteza Mahmoudi, Heike E Daldrup-Link
Purpose To evaluate if the formation of a protein corona around ferumoxytol nanoparticles can facilitate stem cell labeling for in vivo tracking with magnetic resonance (MR) imaging. Materials and Methods Ferumoxytol was incubated in media containing human serum (group 1), fetal bovine serum (group 2), StemPro medium (group 3), protamine (group 4), and protamine plus heparin (group 5). Formation of a protein corona was characterized by means of dynamic light scattering, ζ potential, and liquid chromatography-mass spectrometry...
November 1, 2017: Radiology
https://www.readbyqxmd.com/read/28868251/maternal-and-fetal-tuberous-sclerosis-do-we-know-enough-as-an-obstetrician
#10
Nalini Sharma, Shriram Sharma, Jion Lalnunnem Thiek, Santa Singh Ahanthem, Arnab Kalita, Donboklang Lynser
BACKGROUND: Tuberous sclerosis, also known as tuberous sclerosis complex (TSC), is a rare genetic condition that mainly causes hamartomas to develop in different parts of the body. TSC, an autosomal dominant trait with variable penetrance, can adversely affect maternal and fetal outcome. CASE PRESENTATION: In this paper, a case of maternal and fetal tuberous sclerosis having fetal cardiac rhabdomyoma detected in utero at 26 weeks was reported who subsequently had fetal demise at 31 weeks...
April 2017: Journal of Reproduction & Infertility
https://www.readbyqxmd.com/read/28867155/the-boundaries-of-fetal-cardiac-intervention-expand-or-tighten
#11
REVIEW
Laura Gellis, Wayne Tworetzky
Fetal cardiac intervention (FCI) is a relatively new and continually evolving field, and, for select cardiac defects, offers the potential to alter the progression of the disease and improve outcomes. It is a procedure that requires a collaborative effort between maternal-fetal medicine, interventional cardiology and fetal echo/ultrasound specialists, as well as fetal and maternal anesthesiologists, nursing specialists, and social workers. This article reviews the most recently reported data and advances in FCI...
December 2017: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28862023/what-is-the-most-suitable-mr-signal-index-for-quantitative-evaluation-of-placental-function-using-half-fourier-acquisition-single-shot-turbo-spin-echo-compared-with-t2-relaxation-time
#12
Kyoko Nakao Kameyama, Aki Kido, Yuki Himoto, Yusaku Moribata, Sachiko Minamiguchi, Ikuo Konishi, Kaori Togashi
Background Half-Fourier acquisition single-shot turbo spin-echo (HASTE) imaging is now widely used for placental and fetal imaging because of its rapidity and low sensitivity to fetal movement. If placental dysfunction is also predicted by quantitative value obtained from HASTE image, then it might be beneficial for evaluating placental wellbeing. Purpose To ascertain the most suitable magnetic resonance (MR) signal indexes reflecting placental function using HASTE imaging. Material and Methods This retrospective study included 37 consequent patients who had given informed consent to MR imaging (MRI) examinations...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28704916/three-dimensional-echocardiography-in-adult-congenital-heart-disease
#13
REVIEW
Hyun Suk Yang
Congenital heart disease (CHD) is now more common in adults than in children due to improvements in fetal echo, neonatal and pediatric care, and surgical techniques leading to dramatically increased survivability into adulthood. Adult patients with CHD, regardless of prior cardiac surgery, experience further cardiac problems or therapeutic challenges; therefore, a non-invasive, easily accessible echocardiographic examination is an essential follow-up tool. Among echocardiographic modalities, three-dimensional (3D) echocardiography provides better delineation of spatial relationships in complex cardiac geometries and more accurate volumetric information without geometric assumptions...
July 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28653363/quiet-echo-planar-imaging-for-functional-and-diffusion-mri
#14
Jana Hutter, Anthony N Price, Lucilio Cordero-Grande, Shaihan Malik, Giulio Ferrazzi, Andreia Gaspar, Emer J Hughes, Daan Christiaens, Laura McCabe, Torben Schneider, Mary A Rutherford, Joseph V Hajnal
PURPOSE: To develop a purpose-built quiet echo planar imaging capability for fetal functional and diffusion scans, for which acoustic considerations often compromise efficiency and resolution as well as angular/temporal coverage. METHODS: The gradient waveforms in multiband-accelerated single-shot echo planar imaging sequences have been redesigned to minimize spectral content. This includes a sinusoidal read-out with a single fundamental frequency, a constant phase encoding gradient, overlapping smoothed CAIPIRINHA blips, and a novel strategy to merge the crushers in diffusion MRI...
June 26, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28646194/magnetic-resonance-imaging-of-fetal-persistent-left-superior-vena-cava
#15
Su-Zhen Dong, Ming Zhu
This study aimed to evaluate the diagnostic accuracy of fetal magnetic resonance imaging (MRI) for persistent left superior vena cava (LSVC). Prenatal echocardiography (echo) and/or ultrasound (US) and MRI data for 49 fetuses with persistent LSVC, confirmed via postnatal diagnoses between January 2010 and October 2015, were retrospectively reviewed. All prenatal MRI was performed at 1.5 T. Imaging sequences included steady-state free-precession (SSFP), single-shot turbo spin echo (SSTSE), and other sequences...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28631022/risk-analysis-and-outcomes-of-bronchopulmonary-sequestrations
#16
Chun Hong, Gang Yu, Jing Tang, QianLi Liu, Bo Xia
BACKGROUND: Researched and discussed the risks and outcomes of bronchopulmonary sequestrations, especially the intralobar type. METHODS: A retrospective review of our experiences with bronchopulmonary sequestrations from January 2012 to April 2015 is reported. The present study researched and discusses the risks and outcomes of bronchopulmonary sequestrations, especially the intralobar type, compared with other types of bronchopulmonary sequestrations in symptoms, surgery, pathology, and excretion...
June 19, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28624828/unique-imaging-features-enabling-the-prenatal-diagnosis-of-developmental-venous-anomalies-a-persistent-echogenic-brain-lesion-drained-by-a-collecting-vein-in-contrast-with-normal-brain-parenchyma-on-mri
#17
Karina Krajden Haratz, Alon Peled, Boris Weizman, Liat Gindes, Mordechai Tamarkin, Dorit Lev, Dvora Kidron, Liat Ben-Sira, Gustavo Malinger, Tally Lerman-Sagie, Zvi Leibovitz
OBJECTIVE: To describe the prenatal imaging features enabling diagnosis of developmental venous anomalies (DVA). METHODS: Four fetuses with unexplained persistent echogenic parenchymal brain lesions were studied. The evaluation included dedicated neurosonography, fetal MRI, serology for intrauterine infection, screening for coagulation abnormalities, and chromosomal microarray. Postnatal neurodevelopmental follow-up or autopsy results were assessed. RESULTS: DVA presented as very slowly growing echogenic brain lesions without cystic components, calcifications, or structural changes on otherwise normal neurosonographic scans performed at 2- to 3-week intervals...
June 17, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28571229/role-of-echocardiography-in-prenatal-screening-of-congenital-heart-diseases-and-its-correlation-with-postnatal-outcome
#18
Shivani Sharma, Navkiran Kaur, Khushpreet Kaur, Naveen Chandrashekhar Pawar
INTRODUCTION: Congenital Heart Defects (CHDs) are one of the most common forms of congenital anomalies. Fetal echocardiography performed during second trimester aims at early diagnosis of congenital heart disease which is instrumental in proper planning of delivery, perinatal care and counselling of parents. AIM: To evaluate the role of fetal echocardiography in prenatal screening of CHDs and to study the role of associated extracardiac anomalies. MATERIALS AND METHODS: This was a hospital based prospective and correlative type of study, done over a period of one year...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28545987/echography-of-clinically-relevant-disorders-in-the-genital-tract-of-female-dromedary-camels
#19
Ahmed Ali, Derar Derar, Ali Alsamri, Fahd Al Sobayil
The aim of this study was to characterize the clinically relevant genital tract disorders of dromedary camels. Reproductive tract examinations were performed via transrectal palpation, ultrasonography and vaginal exploration. The ultrasonic appearance of the reproductive pathology was described and compared with its morphology at laparotomy, after surgical removal, during postmortem examination or upon slaughter. Diagnosis was also confirmed by histopathology. The most frequently encountered follicular structures were larger than typical follicles (56/338, 16...
May 19, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28544220/gestational-diabetes-mellitus-shades-of-grey
#20
R M Silver
No abstract text is available yet for this article.
May 24, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
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