Results 21 to 30 of about 5,140 (169)
Ultrasound in Obstetrics &Gynecology, Volume 65, Issue 4, Page 456-461, April 2025.Abstract Objective To investigate the ongoing parvovirus B19 (B19V) outbreak among pregnant women in Germany and its connection to the coronavirus disease 2019 (COVID‐19) pandemic. Methods This retrospective cohort study analyzed anonymous data regarding serologically confirmed B19V infections during pregnancy between January 2014 and April 2024 across
J. Jiménez Cruz +14 more
wiley +1 more source
Ultrasound in Obstetrics &Gynecology, Volume 65, Issue 4, Page 447-455, April 2025.ABSTRACT Objective A soluble fms‐like tyrosine kinase‐1 (sFlt‐1)‐to‐placental growth factor (PlGF) ratio cut‐off of 38 is currently considered optimal for ruling out pre‐eclampsia (PE); however, implementation of this ratio in clinical practice is limited.
M. N. Nan +15 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2021 双胎妊娠较单胎妊娠更容易发生胎儿生长受限、染色体异常和结构畸形[1-2],胎儿神经系统异常是常见的畸形之一,出生后可表现为智力、运动及行为障碍等,甚至发生死亡,给患儿、家庭和社会带来巨大的痛苦和沉重的负担,因此,产前明确诊断非常重要。超声是产前诊断胎儿畸形的最主要影像学手段,双胎妊娠时,两个胎儿处于一个宫腔内,活动相对受限,加上孕妇肥胖腹壁厚,或两个胎儿胎位一致、羊水量少、胎儿肢体活动以及一个胎儿可能阻挡另一个胎儿的观察等,增加双胎妊娠超声检查困难。
徐霞 +4 more
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Zhongguo shiyan zhenduanxue, 2002 目的 观察乙型肝炎病毒通过产妇传播在胎儿脾脏组织中表达的情况。方法 采集 40例乙型肝炎产妇产下的死胎 ,常规尸检 ,取脾脏组织 ,SP法检测HBsAg ;回访婴母产前静脉血HBV的检测结果 ;取百分率行u检验。结果 HBsAg阳性颗粒在死胎的白髓、边缘区、红髓中的淋巴细胞和巨噬细胞浆、脾血窦、脾脏血管中呈点、灶状分布 ,脾脏淋巴细胞和巨噬细胞核不着色。HBVM为 （HBsAg +,HBeAg +,HBcAb +）的婴母较HBVM呈单项阳性、（HBsAg +,HBeAb +,HBcAb ...
赵伟, 刘伟, 罗婵
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Ultrasound in Obstetrics &Gynecology, Volume 64, Issue 6, Page 768-775, December 2024.Abstract Objective Lower urinary tract obstruction (LUTO) is a chronic condition with a spectrum of outcomes. It is usually suspected prenatally based on ultrasound features (USFs). Given the unknown postnatal trajectory and the potential for significant morbidity and mortality, many families choose termination of pregnancy (TOP), often based on USFs ...
J. Richter +10 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2002 目的 观察乙型肝炎病毒通过产妇传播在胎儿脾脏组织中表达的情况。方法 采集 40例乙型肝炎产妇产下的死胎 ,常规尸检 ,取脾脏组织 ,SP法检测HBsAg ;回访婴母产前静脉血HBV的检测结果 ;取百分率行u检验。结果 HBsAg阳性颗粒在死胎的白髓、边缘区、红髓中的淋巴细胞和巨噬细胞浆、脾血窦、脾脏血管中呈点、灶状分布 ,脾脏淋巴细胞和巨噬细胞核不着色。HBVM为 (HBsAg +,HBeAg +,HBcAb +)的婴母较HBVM呈单项阳性、(HBsAg +,HBeAb +,HBcAb ...
赵伟 +7 more
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Ultrasound in Obstetrics &Gynecology, Volume 64, Issue 5, Page 661-668, November 2024.ABSTRACT Objective To determine the diagnostic accuracy of virtual autopsy using whole‐body postmortem ultra‐high field magnetic resonance imaging (MRI) at 7 Tesla (T), using a short T2‐weighted imaging (T2‐WI) protocol, compared with classical autopsy, for detecting structural abnormalities in small second‐trimester fetuses. Methods Thirty consecutive
A. Staicu +11 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2002 【目的】通过了解胎盘病理变化与胎儿感染HBV 的关系, 探讨胎儿感染的机理。【方法】测量160 例足月妊娠 孕妇胎盘大小、质量、脐长, 并进行大体病理学检查。分组包括30 例胎儿感染组、胎儿血指标阴性者80 例为阴性对照组、正常 孕妇50 例为正常组。对其中61 例HBV 携带者孕妇胎盘进行详细的组织病理学观察(包括胎儿感染组28 例及对照组33 例), 分级诊断分析, 用PCR、ELISA 法检测胎儿血HBV DNA 和HBsAg 。【结果】①胎儿感染组平均胎盘体积为(638 ±179 ...
刘颖琳, 刘新质
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Ultrasound in Obstetrics &Gynecology, Volume 64, Issue 4, Page 504-512, October 2024.ABSTRACT Objective To investigate the association between varying degrees of abnormality in the Doppler uterine artery pulsatility index (UtA‐PI) and adverse perinatal outcome. Methods This was a prospective study of women with a singleton, non‐anomalous pregnancy in whom UtA‐PI was measured universally in midpregnancy and who gave birth in Oxford ...
S. Dockree +6 more
wiley +1 more source
彩色多普勒超声诊断单脐动脉、永久性右脐静脉与并发胎儿发育异常的相关性探讨
Zhongguo shiyan zhenduanxue, 2017 永久性右脐静脉为脐静脉畸形中最常见的种类,是解剖结构变异,不属胎儿畸形,发病率约为0.2%-1%[1]。以上两种情况均容易出现早产、宫内生长受限以及导致胎儿发育异常等,同时由于存在异常的血供,这也大大增加了患儿围生期的死亡率,研究显示当胎儿出现脐血管异常时胎儿的死亡率约为正常胎儿的4倍[2 ...
梁宏伟 +6 more
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