可以通俗地认为Z-score反映了在正常人群中的位置变量。 使用统计学方法可以建立正常胎儿参考值及其Z-score,可以更精确定量化评估和分析此阶段胎儿心脏的发育情况,最重要的是,增加了可比性(不同胎龄、月龄纵向比较)。 Z-score将随机变量x应用理论...
The application of z-scores in normalizing the cardiac size function and structural dimension will be of immense benefit to the clinician, especially in evaluating children with cardiac anomalies. However, heterogeneity in the obtained z- score results is high, thus a subgroup analysis by region (...
KEY WORDS Echocardiography;Children;Z scores 超声心动图因其无创,无辐射,简便,可重复等优点,已成 为评价活体心脏结构和功能的首选影像学检查方法.传统超 声心动图心脏实测值常以年龄段分组,采用 x±s 形式评估心脏 发育,其工作量较大,查对困难.目前超声心动图检查常借鉴 国外参考值标准或沿用国内传统数据评估...
ECHOCARDIOGRAPHYSTATUREDURATION of pregnancyBODY surface areaBIRTH weightDESCRIPTIVE statisticsSTATISTICAL modelsCHILDRENBackground : The availability of nomograms is crucial for the correct interpretation of pediatric and neonatal echocardiograms. Echocardiographic Z-score applications/websites use Western nomograms...
Quantile Score: A New Reference System for Quantitative FetalEchocardiography Based on a Large Multicenter Study[J]. Journal of the AmericanSociety of Echocardiography, 2018.[2] 中华医学会胸心血管外科学分会, 中华医学会小儿外科学分会心胸外科学组, 国家心血管病中心先天性心脏病专业委员会, et al. ...
Z-scores reference ranges fetal echocardiography 1. Introduction Congenital heart disease (CHD) is the most common type of malformation at birth, having shown an increase in prevalence over the last few decades. Liu et al. [1] determined a prevalence of approximately 8.2 cases per 1000 births ...
Left ventricular volume measurement with echocardiography: a comparison of left ventricular opacification, three-dimensional echocardiography, or both with... Both contrast enhanced (CE) two-dimensional echocardiography (2DE) and three-dimensional echocardiography (3DE) have been proposed as techniques to im...
Z-Scores and Reference Values for Pediatric Echocardiography. Sites View z-scores calculated by multiple references for common collections, like theaortic rootandcoronary arteries. View the sites → Refs Calculate z-scores of cardiac structures using a large collection of references, fromBhatlatoZilberma...
Z-scores were calculated according to the proposed equation for SoV and AA.A dilated aortic root was defined as a Z-score ≥1.96 or the diameter of SoV or AA ≥40 mm.The prevalence of proximal aorta dilatation and associated factors were analyzed. ResultsThe prevalences of proximal aorta ...
It can improve the prenatal detection rate of homozygous α-thalassemia-1 fetus, reduce unnecessary invasive operation and save expenses. KEYWORDS: Echocardiography;alpha-Thalassemia, homozygous;Heart diameter;Z-score;Cardiothoracic ratio Corresponding author: Qiu Xiaoxia, Email: moc.361dwxxq FUNDING: ...