Abstract:
OBJECTIVES:Our two objectives were to evaluate the feasibility of fetal brain magnetic resonance imaging (MRI) using a fast spin echo sequence at 3.0T field strength with low radio frequency (rf) energy deposition (as measured by specific absorption rate: SAR) and to compare image quality, tissue contrast and conspicuity between 1.5T and 3.0T MRI. METHODS:T2 weighted images of the fetal brain at 1.5T were compared to similar data obtained in the same fetus using a modified sequence at 3.0T. Quantitative whole-body SAR and normalized image signal to noise ratio (SNR), a nominal scoring scheme based evaluation of diagnostic image quality, and tissue contrast and conspicuity for specific anatomical structures in the brain were compared between 1.5T and 3.0T. RESULTS:Twelve pregnant women underwent both 1.5T and 3.0T MRI examinations. The image SNR was significantly higher (P=0.03) and whole-body SAR was significantly lower (P<0.0001) for images obtained at 3.0T compared to 1.5T. All cases at both field strengths were scored as having diagnostic image quality. Images from 3.0T MRI (compared to 1.5T) were equal (57%; 21/37) or superior (35%; 13/37) for tissue contrast and equal (61%; 20/33) or superior (33%, 11/33) for conspicuity. CONCLUSIONS:It is possible to obtain fetal brain images with higher resolution and better SNR at 3.0T with simultaneous reduction in SAR compared to 1.5T. Images of the fetal brain obtained at 3.0T demonstrated superior tissue contrast and conspicuity compared to 1.5T.
journal_name
J Perinat Medjournal_title
Journal of perinatal medicineauthors
Krishnamurthy U,Neelavalli J,Mody S,Yeo L,Jella PK,Saleem S,Korzeniewski SJ,Cabrera MD,Ehterami S,Bahado-Singh RO,Katkuri Y,Haacke EM,Hernandez-Andrade E,Hassan SS,Romero Rdoi
10.1515/jpm-2014-0268subject
Has Abstractpub_date
2015-03-01 00:00:00pages
209-20issue
2eissn
0300-5577issn
1619-3997pii
/j/jpme.ahead-of-print/jpm-2014-0268/jpm-2014-0268journal_volume
43pub_type
临床试验,杂志文章abstract:AIM:To evaluate the short-term effects of blood transfusion on iron status [hemoglobin, ferritin, soluble transferrin receptor (sTfR), and reticulocyte count], hepcidin, and erythropoietin in stable preterm infants. METHOD:Sixty-three preterm infants treated with red blood cell transfusions (RBCTs) were included. Veno...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2015-0361
更新日期:2016-10-01 00:00:00
abstract:AIM:To discover the potential role of recombinant VEGF121 (rVEGF121) injection for the prevention of fetal growth restriction in a preeclampsia (PE) mouse model (Mus musculus). SUBJECTS AND METHODS:This is an experimental study of 30 pregnant mice that were randomly divided into three groups: normal, PE, and PE with r...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2016-0149
更新日期:2017-02-01 00:00:00
abstract::Background Thyroid cancer is one of the most common cancers in women of reproductive age. Our purpose was to evaluate the association between thyroid cancer and maternal and neonatal outcomes of pregnancy. Methods We conducted a retrospective cohort study using the Healthcare Cost and Utilization Project, Nationwide I...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2019-0039
更新日期:2019-09-25 00:00:00
abstract::The use of ultrasonography (USG) during pregnancy provides a tremendous amount of valuable information about fetal and maternal well-being. However, in some cases the image quality may be poor due to maternal fat tissue, fetal position, or some other reason. Magnetic resonance imaging (MRI) can provide clear images fr...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章,评审
doi:10.1515/JPM.2003.070
更新日期:2003-01-01 00:00:00
abstract:OBJECTIVE:To examine trends in twin gestational age over time, with adjustment for potential confounding factors, and to assess twin pair mortality and respiratory support over time. METHODS:Rates of preterm births, respiratory support, and neonatal mortality were calculated for 21,569 twin pairs born from 1980 to 200...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm.2010.020
更新日期:2010-05-01 00:00:00
abstract:AIMS:The objective of the study was to examine the effect of ranitidine on the incidence of late onset sepsis. METHODS:This study was based on information extracted from charts of 569 infants admitted to the neonatal intensive care unit (NICU) from July 2003 to July 2005. All infants admitted for seven or more days we...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/JPM.2007.017
更新日期:2007-01-01 00:00:00
abstract::Meconium peritonitis is a sterile chemical peritonitis caused by peritoneal seeding of meconium from an antenatal gastrointestinal perforation. We report a 32-week preterm female neonate who developed meconium peritonitis due to bowel perforation, secondary to a twisted left fallopian tube mass, which was excised and ...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/JPM.2005.014
更新日期:2005-01-01 00:00:00
abstract::Plasma lipoprotein, cholesterol and triglycerides were determined in 34 hypertensive pregnant patients and in 17 healthy full term pregnant women. Pregnancy induced hypertension was diagnosed in 21 patients and chronic hypertension in the remaining 13 women. Serum triglyceride levels were significantly elevated in the...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1990.18.6.473
更新日期:1990-01-01 00:00:00
abstract::Antepartum and intrapartum monitoring problems are discussed with reference to a case history of a fetal AV-block detected during the 36th week of pregnancy. CTG instruments where the internal logic criteria can be turned off are suitable for monitoring arrhythmias. During labor the direct fetal ECG permits exact diag...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1982.10.2.85
更新日期:1982-01-01 00:00:00
abstract::A new design of vacuum extractor cup--'the New Generation cup'--has recently been introduced into clinical practice. Its major modification is a traction cord which passes around the rim of the cup for 180 degrees and is free to slide within the rim. Claims that this design 'enables the operator to pull obliquely with...
journal_title:Journal of perinatal medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1515/jpme.1986.14.2.95
更新日期:1986-01-01 00:00:00
abstract::We report on an exceptional therapy with epidural anesthesia and tunnelling of the peridural catheter over a time period of 2-14 days in patients with threatening early preterm labor, intact membranes and vaginal engagement of the infants (4 singleton, 8 twin and 2 triplet pregnancies). A combination of bupivacaine (0...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/JPM.2008.081
更新日期:2008-01-01 00:00:00
abstract:AIM:Evaluate the relationship between neonatal weight and pregnancy-associated plasma protein-A. METHODS:Retrospective study on 2564 singleton pregnancies with healthy term neonates in three groups of women with different values of pregnancy-associated plasma protein-A who underwent the combined test during the first ...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2013-0249
更新日期:2015-03-01 00:00:00
abstract:AIM:To evaluate whether computerized CTG (cCTG) is a reliable method of predicting neonatal outcome in pregnancies complicated by pregestational diabetes at term. PATIENTS AND METHODS:We considered 27 pregnant women affected by pregestational diabetes and 46 normal pregnancies as controls that fulfilled the following ...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/JPM.2004.141
更新日期:2004-01-01 00:00:00
abstract::Numerous tests have been proposed for the assessment of fetal condition during the antenatal period. This preliminary report suggests the possibility of exposing the fetus-in-utero to alternating light during amnioscopy, with simultaneous registration of the fetal heart rate. This simple, non-invasive, inexpensive tes...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1980.8.1.38
更新日期:1980-01-01 00:00:00
abstract::The aim of this experimental ultrasound study on six fetal lambs was to evaluate how blood flow variables and vessel diameters of the descending aorta and the common carotid artery change during fetal asphyxia in the acute preparation. When acute asphyxia was induced by obstructing the maternal aortic blood flow all f...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:
更新日期:1991-01-01 00:00:00
abstract::This study compared the efficacy of a single intravenous dose of Cefazolin alone or combined with an antibiotic containing preclosure-irrigation solution in patients undergoing cesarean section. A total of 308 patients were prospectively assigned to two groups by randomization. Group I received two grams of Cefazolin ...
journal_title:Journal of perinatal medicine
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1515/jpme.1992.20.3.177
更新日期:1992-01-01 00:00:00
abstract::The occurrence, predictive factors and associated morbidity of bronchopulmonary dysplasia (BPD) was examined in a preterm birth cohort of 712 children, born before 37 weeks of gestation to residents of a geographically defined area between 1978-82. All cases of BPD (N = 16) were born at or before 32 weeks of gestation...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1988.16.5-6.437
更新日期:1988-01-01 00:00:00
abstract::In order to search for any difference in riboflavin and pyridoxine nutrition between term appropriate for gestational age (TAGA), term small for gestational age (TSGA) and preterm appropriate for gestational age (PTAGA) newborns, cord blood from 23, 19 and 20 infants, respectively, were studied, and red cell glutathio...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1996.24.3.221
更新日期:1996-01-01 00:00:00
abstract::A prospective trial to investigate feasibility of vaginal delivery after more than one cesarean section, and the safety of vaginal delivery for mother and neonate. Twenty-six pregnant women with a history of two or more cesarean sections were admitted to the delivery room and accepted trial of labor under internal fet...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1994.22.1.13
更新日期:1994-01-01 00:00:00
abstract:UNLABELLED:Congenital cystic adenomatoid lung malformation (CCAM) is a rare disorder characterized by replacement of normal pulmonary tissue with cysts of variable size and distribution. Only sporadic cases of CCAM type III have been described that were stillborn or died in the early neonatal period. To our best knowle...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/JPM.2002.068
更新日期:2002-01-01 00:00:00
abstract::Histologic examination of the skeletal muscles in 8 fetuses and newborn patients with the Pena-Shokeir sequence revealed only minor nonspecific changes which could not be ascribed to any of the well defined myopathies. Muscle fiber diameters were increased in 2 out of 5 patients examined. No significant malformations ...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1990.18.4.267
更新日期:1990-01-01 00:00:00
abstract::A prospective study was conducted to determine the effects of maternal smoking and alcohol consumption during pregnancy on the birth weight of fetuses in an unselected study population. Several confounding factors were taken into account. The main factors associated with an increase of birth weight of both sexes were ...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1988.16.3.249
更新日期:1988-01-01 00:00:00
abstract:AIMS:To evaluate the impact of umbilical and uterine artery Doppler in the second and third trimester on antenatal course, labor and delivery in a low-risk primigravid population. METHODS:Prospective recruitment of 1011 low-risk primigravidas with uterine and umbilical artery Doppler assessment at 22-24 weeks and 36 w...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm.2010.130
更新日期:2011-03-01 00:00:00
abstract::Objective To determine the association between pre-gravid obesity and stillbirth. Methods A retrospective study of a population-based dataset of births at ≥34 weeks' gestation. We excluded fetal deaths due to lethal anomalies and intrapartum fetal deaths. We calculated the incidence of stillbirths, neonatal respirator...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2018-0266
更新日期:2019-04-24 00:00:00
abstract::Vaginal bleeding may be present in up to 30% of patients presenting with signs and symptoms of a rupture of the fetal membranes (ROM). The presence of blood may lead to false positive results with biochemical markers. The data presented in this study came from a multi-centric prospective observational clinical study t...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章,多中心研究
doi:10.1515/jpm-2014-0227
更新日期:2015-07-01 00:00:00
abstract::Computerised cardiotocograph analysis has been used in our medical antenatal clinic for women with insulin dependent diabetes mellitus for five years. We had observed that many of the patients failed the computer criteria and wished to examine this finding in more detail. All cardiotocographs from 40 pregnant women wi...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1998.26.2.102
更新日期:1998-01-01 00:00:00
abstract::Breast pumps have been used since antiquity, and their form has changed with the available material. The ancient Greeks used the ceramic guttus type, both to empty the breast and feed the infant. The Romans invented glass milk-extractors, sucked by the mother herself to elevate retracted nipples. Devices in the form o...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2012-0120
更新日期:2012-11-01 00:00:00
abstract::The aim of this study was to evaluate whether prolonged pregnancy was associated with dangers to the fetus, and to assess the incidence of cesarean section as well as fetal distress. The outcome for mother and baby in both groups of patients with post-term pregnancies was generally good. Furthermore, the improvement o...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1995.23.3.183
更新日期:1995-01-01 00:00:00
abstract::Status and school achievement of 129 children born in Hessen between 1988 and 1992 and notified by a repeatedly elevated concentration of TSH in neonatal screening were evaluated. Interviews of mothers, teachers and pediatricians were used to score the development and educational achievements, respectively. A total of...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/JPM.2005.097
更新日期:2005-01-01 00:00:00
abstract::Anencephaly in triplets and pergonal induced pregnancies is a very rare incident. Associated cleft lip and palate has never been reported in these case. In this paper we report the first case of an anencephalic infant with cleft lip and palate in a set of pergonal-induced discordant triplet pregnancy. ...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1992.20.3.241
更新日期:1992-01-01 00:00:00