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Seismocardiography on Infants and Kids

机译：在婴儿和孩子身上的地震图

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Seismocardiography (SCG) offers a variety of possibilities for cardiovascular diagnostics, especially in long-term monitoring. Unfortunately, little information is available about changes in SCG-signal-morphology over the life course, as well as differences in different age groups. A highly specialized system with two isochronous accelerometers (at sternum/apex) and a reference ECG with a sample frequency of 17kHz was used. We included healthy infants and children between 0 and 14 years, with a focus on babies. In contrast to adult measurements, working with children is demanding in many ways (e.g. movement artifacts). First, the SCG and ECG data were processed by filter mechanisms and annotated by peak-detection based on patter analysis. With the annotated data, a detailed examination of the established SCG features with regard to absolute and relative amplitudes and time intervals was realized. Through this analysis it is possible to make initial comparisons of the child groups to adult data. The infant's SCG amplitude is up to five times smaller, but the actual signal morphology is equal. Established physiological processes of the child's heart can also be identified (e.g. high pulse-rate-variability). This work is a prelude to a further collection and should lead to an open-data database that includes data a wide range of ages as well as various pathologies.
机译：SeisModcarcography（SCG）为心血管诊断提供了各种可能性，特别是在长期监测中。不幸的是，在生活课程中的SCG信号 - 形态的变化以及不同年龄组的差异，很少有信息。使用具有两个等时加速度计（在胸骨/顶点）的高度专业化系统和具有17kHz的样本频率的参考ECG。我们包括健康的婴儿和0到14岁之间的儿童，专注于婴儿。与成人测量相反，与儿童合作以多种方式要求（例如，运动伪影）。首先，通过滤波机制处理SCG和ECG数据，并通过基于Patter分析通过峰值检测注释。利用注释数据，实现了关于绝对和相对幅度和时间间隔的确定的SCG特征的详细检查。通过该分析，可以将子组与成人数据进行初始比较。婴儿的SCG幅度越大，但实际信号形态等于。还可以识别儿童心脏的建立的生理过程（例如，高脉冲率变异性）。这项工作是进一步集合的前奏，并且应该导致开放数据库，其中包括多种年龄的数据以及各种病例。

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