Results 21 to 30 of about 257,716 (153)
Ultrasound in Obstetrics &Gynecology, Volume 68, Issue 1, Page 88-98, July 2026.ABSTRACT Objective To identify prenatal predictors of tuberous sclerosis complex (TSC) in fetuses with one or more cardiac rhabdomyomas (CR), evaluate an integrated multimodal diagnostic workflow using fetal magnetic resonance imaging (MRI) and trio whole‐exome sequencing (trio‐WES) and characterize perinatal outcomes.
X. Cai +8 more
wiley +1 more source
Ultrasound in Obstetrics &Gynecology, Volume 67, Issue 6, Page 836-851, June 2026.ABSTRACT Objective To determine whether ultrasound is non‐inferior to positron‐emission tomography/computed tomography (PET/CT) and diffusion‐weighted magnetic resonance imaging (DW‐MRI) in terms of overall diagnostic accuracy for the preoperative assessment of pelvic lymph‐node status in cervical cancer.
F. Frühauf +14 more
wiley +1 more source
, 2003 本文将超声波探伤方法应用于抽油杆疲劳裂纹检测,建立了基于非接触式水浸超声探伤、双向斜置线聚焦探头、轴向—切向运动分离三个关键技术的抽油杆疲劳裂纹检测方法,并对不同深度的人工裂纹进行了检测实验,对检测信号进行了分析 ...
冯玮, 姚红星, 石惠宁, 柳春图
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Gaoya dianqi, 2014 论文论述了超声波检测在无损检测领域的应用特点,以及超声无损检测在多个领域的应用情况。通过对超声波检测的原理、波型、连续性和显示方式的分析和对比,重点论述了超声检测在电力系统绝缘子中的应用。介绍了超声绝缘子检测的机理、特点和适用范围,并对各个方法的优缺点进行了对比。在此基础上阐述了超声检测的发展趋势,对空气耦合超声和激光超声检测的方法、优缺点及应用前景进行了简单介绍,为后续的深入研究打下基础。
范兴明, 马世伟, 张鑫, 凌斯
doaj
Ultrasound in Obstetrics &Gynecology, Volume 67, Issue 5, Page 679-683, May 2026.ABSTRACT ObjectiveTo determine the diagnostic performance of each additional step of the four‐step International Deep Endometriosis Analysis (IDEA) consensus protocol for predicting the presence of deep endometriosis (DE) on transvaginal ultrasound. MethodsThis was an international multicenter observational cohort study of data collected prospectively ...
P. McClenahan +18 more
wiley +1 more source
Haiyang gongcheng zhuangbei yu jishu, 2018 在深海平台中，奥氏体不锈钢材料使用较为广泛。利用超声检测奥氏体不锈钢焊缝一直是一大难题，随着超声相控阵检测技术的发展和其独特的优势，使得检测效果显著提升，文中通过相控阵技术与传统超声技术的比较，分析制定出超声相控阵检测奥氏体不锈钢焊缝的方案，并利用实际实验进行了验证，同时对比了利用超声相控阵检测碳钢焊缝和不锈钢焊缝的异同点，总结了相关的注意事项。
刘贵吉 +4 more
doaj
Ultrasound in Obstetrics &Gynecology, Volume 67, Issue 3, Page 376-384, March 2026.ABSTRACT Objective To investigate whether combining abnormal morphological features observed on ultrasound in live pregnancies that ended in a first‐trimester miscarriage can predict an abnormal karyotype. Methods This retrospective observational cohort study was conducted at the early‐pregnancy assessment unit at University College London Hospital ...
T. Setty +5 more
wiley +1 more source
Gaoya dianqi, 2016 电力设备长期运行中,绝缘材料内部会产生不同形态的细微缺陷,采用超声检测有助于及时发现缺陷,确保设备的安全运行。笔者根据固体绝缘材料内部缺陷形貌超声检测的要求,通过对不同频率探头测量灵敏度和衰减的对比确定了适用的超声探头频率,分析了影响超声检测灵敏度的因素。在此基础上设计了能准确获取缺陷形貌特征的超声自动检测系统,提出了基于回波特征参量分析的缺陷形貌超声成像方法。采用设计的超声检测系统对人工模拟缺陷环氧试样进行超声扫描验证检测方法的实用性,结果表明:检测系统可以准确识别直径大于130μm的气隙缺陷 ...
申巍 +4 more
doaj
Ultrasound in Obstetrics &Gynecology, Volume 67, Issue 2, Page 207-219, February 2026.ABSTRACT Objective To test the non‐inferiority of extended abdominopelvic ultrasound examination compared with contrast‐enhanced computed tomography (CT) and whole‐body diffusion‐weighted magnetic resonance imaging (WB‐DWI/MRI) in discriminating preoperatively between resectable and non‐resectable disease based on the European Society for Medical ...
D. Fischerova +26 more
wiley +1 more source
, 2020 本实用新型公开了一种用于增材制造零件的水浸超声自动化检测系统，属于超声无损检测技术领域。该检测系统包括六自由度工业机器人、夹具、水循环装置、水浸超声检测系统和控制系统；待检测零件通过夹具安装在六自由度工业机器人的手臂上，通过控制系统实现零件的自动装夹与换取，通过机器人实现零件的移动与定位；所述水循环装置包括水槽、水箱、水泵、过滤器和喷嘴，水浸探头固定安装在水槽内，喷嘴安装在水浸探头上方；所述水浸超声检测系统包括水浸探头和超声检测仪器，水浸探头与超声检测仪器相连接 ...
何振丰 +5 more
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