应用雷达视觉融合系统分离胸腹测量在新生儿生命体征监测中的应用。

IF 3.9 2区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES
Nanyi Jiang, Xuerui Liang, Xiangwei Dang, Yanlei Li, Shiguang Yang, Xingdong Liang, Tongyan Han
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引用次数: 0

摘要

非接触、快速、准确地测量新生儿呼吸频率(RR)和心率(HR)具有重要的临床意义。现有的方法主要集中在胸部呼吸信号的测量上。当应用于主要表现为腹式呼吸的新生儿时,这种胸部聚焦的方法导致低信号干扰比(SIR),与使用腹部信号相比,降低了RR测量的准确性。此外,新生儿和工作人员在临床环境中的运动对监测系统的稳健性提出了挑战。本文提出了一种基于MIMO雷达的胸腹分离测量方法,利用腹部信号中包含的RR信息,同时从胸部信号中提取HR信息,这样可以更精确地从具有高SIR的腹部信号中提取RR。为了在新生儿和工作人员运动干扰下保证雷达波束的正确分离。本文提出了一种将单目摄像机与MIMO雷达相结合的综合测量系统,以实现对雷达波束的精确实时制导。实验结果表明,该方法显著提高了RR测量精度和系统鲁棒性。我们报告了RR测量的最大均方根误差为2.16 BPM, HR测量的最大均方根误差为3.54 BPM。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Separation of thoracic and abdominal measurements in neonatal vital sign monitoring using radar vision fusion system.

Non-contact, rapid and accurate measurement of respiratory rates (RR) and heart rates (HR) in neonates has significant clinical importance. Existing methods predominantly focus on thoracic respiratory signal measurement. This thoracic-focused approach, when applied to neonates who exhibit predominantly abdominal breathing, leads to a low signal-to-interference ratio (SIR) that compromises the accuracy of RR measurement compared with using abdominal signal. Moreover, neonatal and staff motion in clinical environments pose challenges for the robustness of monitoring systems. In this paper, a method for the separation of thoracic and abdominal measurements based on MIMO radar is proposed to make use of the RR information contained within the abdominal signal, while extracting HR information from thoracic signal, in which case RR can be extracted more precisely from abdominal signal with a high SIR. In order to ensure proper separation of radar beams under the interference from neonatal and staff motion, this paper presents an integrated measurement system that combines a monocular camera and MIMO radar to achieve precise and real-time guidance for the radar beams. Experimental results demonstrate significant improvements in RR measurement accuracy and system robustness. We report maximum root mean square errors of 2.16 Beats Per Minute(BPM) for RR measurements and 3.54 BPM for HR measurements.

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来源期刊
Scientific Reports
Scientific Reports Natural Science Disciplines-
CiteScore
7.50
自引率
4.30%
发文量
19567
审稿时长
3.9 months
期刊介绍: We publish original research from all areas of the natural sciences, psychology, medicine and engineering. You can learn more about what we publish by browsing our specific scientific subject areas below or explore Scientific Reports by browsing all articles and collections. Scientific Reports has a 2-year impact factor: 4.380 (2021), and is the 6th most-cited journal in the world, with more than 540,000 citations in 2020 (Clarivate Analytics, 2021). •Engineering Engineering covers all aspects of engineering, technology, and applied science. It plays a crucial role in the development of technologies to address some of the world''s biggest challenges, helping to save lives and improve the way we live. •Physical sciences Physical sciences are those academic disciplines that aim to uncover the underlying laws of nature — often written in the language of mathematics. It is a collective term for areas of study including astronomy, chemistry, materials science and physics. •Earth and environmental sciences Earth and environmental sciences cover all aspects of Earth and planetary science and broadly encompass solid Earth processes, surface and atmospheric dynamics, Earth system history, climate and climate change, marine and freshwater systems, and ecology. It also considers the interactions between humans and these systems. •Biological sciences Biological sciences encompass all the divisions of natural sciences examining various aspects of vital processes. The concept includes anatomy, physiology, cell biology, biochemistry and biophysics, and covers all organisms from microorganisms, animals to plants. •Health sciences The health sciences study health, disease and healthcare. This field of study aims to develop knowledge, interventions and technology for use in healthcare to improve the treatment of patients.
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