Results 41 to 50 of about 257,716 (153)
Ultrasound in Obstetrics &Gynecology, Volume 66, Issue 5, Page 582-588, November 2025.ABSTRACT Objective The corpus callosum (CC) is an interhemispheric structure that facilitates communication between the two cerebral hemispheres. Anomalies of the CC are frequent and associated with a wide spectrum of altered neurodevelopmental outcomes.
R. Corroenne +55 more
wiley +1 more source
基于多频超声波技术和GWO-BP算法的变压器油电气性能检测方法研究
Gaoya dianqi, 2020 为了实现对变压器油电气性能快速准确地检测,提出了基于多频超声波（MFU）技术和灰狼优化BP神经网络（GWO-BP）的检测方法,利用不同频率超声波在变压器油中传播速度和衰减系数不同、对不同尺寸颗粒物检测效果不同的特点,综合了超声波在无损检测上的优势以及灰狼算法全局寻优能力强、预测精度高的优点。首先利用超声波在非均匀介质中的传播特性,准确地获取超声波在变压器油中的传播速度、衰减系数等特性参数;再利用灰狼算法对传统BP神经网络进行优化。然后利用灰狼优化的神经网络对样本进行训练 ...
王旭, 生西奎, 慕锟, 王昕
doaj
Ultrasound in Obstetrics &Gynecology, Volume 66, Issue 5, Page 621-630, November 2025.ABSTRACT Objectives To compare the maternal hemodynamics of Chinese women at low and at high risk for preterm pre‐eclampsia (PE) and assess the differences in hemodynamic parameters between high‐risk women with or without prophylactic aspirin. Methods This was a prospective longitudinal case–control study of 857 Chinese women with a singleton pregnancy
X. Wang +11 more
wiley +1 more source
, 2018 混凝土是我国当前建筑行业领域使用最广泛的建筑原材料,但我国科学技术的更新、升级,造成混凝土的材料也有了相应的变化,从前主要是由砂石和水泥组成,目前在混凝土中加入了钢纤维材料,大大提高了混凝土的性能。从而使混凝土质量检测也发生了改变,混凝土施工完毕后对其质量的检测关系到建筑的质量和安全,所以一直受到建筑行业的重视。但如何不破坏其结构对混凝土的性能进行检测是建筑行业所困扰的问题,为了解决此问题,我国探索出了超声波检测,并应用到了混凝土中,所以文章对超声波检测在钢纤维混凝土中的应用进行了分析和探索。
婧婧 哈
core +1 more source
Zhongguo shiyan zhenduanxue, 2016 目的探讨超声联合超敏反应C蛋白（hs-CRP）、前列腺抗原（PSA）检测对前列腺增生的诊断价值。方法选取2012年1月-2014年12月间我院临床确诊的78例前列腺增生患者作为观察组,选取同时期于我院行男性健康体检人群71例作为对照组,比较两组的Hs-CRP、PSA、IPSS评分、前列腺体积、残余尿、Qmax,比较前列腺增生患者不同hs-CRP的各参数情况,比较联合检测与单一检测检出率。结果观察组患者的Hs-CRP、PSA、IPSS评分、前列腺体积、残余尿均明显大于对照组,Qmax明显小于对照组,Hs ...
尤志新
doaj
Impact of race‐based customization on detection of fetal growth restriction
Ultrasound in Obstetrics &Gynecology, Volume 66, Issue 4, Page 480-485, October 2025.ABSTRACT Objective Fetal growth standards determine which fetuses are diagnosed with fetal growth restriction (FGR) and become candidates for enhanced fetal monitoring. Given the existence of race‐based differences in fetal and neonatal weights, we sought to determine the impact of race‐based customization of fetal growth curves on the antenatal ...
P. Ramesh, L. Lemon, J. C. Larkin
wiley +1 more source
Ultrasound in Obstetrics &Gynecology, Volume 66, Issue 2, Page 200-209, August 2025.Abstract Objectives Neonates with critical congenital heart disease (CCHD) are at risk for adverse early brain development and long‐term neurodevelopmental sequelae. Insulin‐like growth factor‐1 (IGF‐1) and insulin‐like growth factor binding protein‐3 (IGFBP‐3) are essential contributors to brain growth and maturation.
M. Nijman +33 more
wiley +1 more source
Ultrasound in Obstetrics &Gynecology, Volume 66, Issue 1, Page 41-50, July 2025.ABSTRACT Objectives Monochorionic diamniotic (MCDA) twins with selective fetal growth restriction (sFGR) and either continuous (cAREDF) or intermittent (iAREDF) absent or reversed end‐diastolic flow in the umbilical artery face significant fetal and neonatal risks.
A. T. R. Noll +19 more
wiley +1 more source
, 2018 技术的发展和推进让钢结构建筑成为主流,其在应用中所具有的优越性能超越了其他结构建筑。为了更好地保障钢结构建筑质量,避免其建设过程中出现的缺陷,运用超声波探伤进行建筑钢结构检测就显得极为重要。基于此,本文就超声波探伤在建筑钢结构检测中的应用进行分析,以供参考。
阳 郭
core +1 more source
Assessment of risk for pre‐eclampsia at mid‐gestation to define subsequent care
Ultrasound in Obstetrics &Gynecology, Volume 65, Issue 6, Page 694-702, June 2025.ABSTRACT Objective To stratify pregnancy care based on the estimated risk of pre‐eclampsia (PE) from screening at 19–24 weeks' gestation by combinations of maternal risk factors, estimated fetal weight (EFW), mean arterial pressure (MAP) and uterine artery pulsatility index (UtA‐PI).
S. Adjahou +5 more
wiley +1 more source