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Method of respiratory rate measurement using a unique wearable platform and an adaptive optical-based approach
Intensive Care Medicine Experimental Pub Date : 2020-05-24 , DOI: 10.1186/s40635-020-00302-6
Gurpreet Singh 1 , Augustine Tee 2 , Thanawin Trakoolwilaiwan 1 , Aza Taha 2 , Malini Olivo 1
Affiliation  

Background An efficient and accurate method of respiratory rate measurement is still missing in hospital general wards and triage. The goal of this study is to propose a method of respiratory rate measurement that has a potential to be used in general wards, triage, and different hospital settings with comparable performance. We propose a method of respiratory rate measurement that combines a unique wearable platform with an adaptive and optical approach. The optical approach is based on a direct-contact optical diffuse reflectance phenomenon. An adaptive algorithm is developed that computes the first respiratory rate and uses it to select a band. The band then chooses a set of unique optimized parameters in the algorithm to calculate and improve the respiratory rate. We developed a study to compare the proposed method against reference manual counts from 82 patients diagnosed with respiratory diseases. Results We found good agreement between the proposed method of respiratory rate measurement and reference manual counts. The performance of the proposed method highlighted deviations with a 95% confidence interval (C.I.) of − 3.34 and 3.67 breaths per minute (bpm) and a mean bias and standard deviation (STD) of 0.05 bpm and 2.56 bpm, respectively. Conclusions The performance of the proposed method of respiratory rate measurement is comparable with current manual counting and other respiratory rate devices reported. The method has additional advantages that include ease-of-use, quick setup time, and being mobile for wider clinical use. The proposed method has the potential as a tool to measure respiratory rates in a number of use cases.

中文翻译:

使用独特的可穿戴平台和自适应光学方法测量呼吸频率的方法

背景 在医院普通病房和分诊中,仍然缺少一种有效且准确的呼吸频率测量方法。本研究的目标是提出一种呼吸频率测量方法,该方法有可能用于普通病房、分诊和具有可比性能的不同医院环境。我们提出了一种呼吸频率测量方法,该方法将独特的可穿戴平台与自适应和光学方法相结合。光学方法基于直接接触的光学漫反射现象。开发了一种自适应算法来计算第一次呼吸频率并使用它来选择频带。乐队然后在算法中选择一组独特的优化参数来计算和提高呼吸频率。我们开展了一项研究,将所提出的方法与来自 82 名被诊断患有呼吸系统疾病的患者的参考手册计数进行比较。结果我们发现所提出的呼吸频率测量方法与参考手册计数之间具有良好的一致性。所提出方法的性能突出了偏差,95% 置信区间 (CI) 为 - 3.34 和 3.67 每分钟呼吸 (bpm),平均偏差和标准偏差 (STD) 分别为 0.05 bpm 和 2.56 bpm。结论 所提出的呼吸频率测量方法的性能与当前手动计数和报告的其他呼吸频率设备相当。该方法具有额外的优势,包括易于使用、快速设置时间以及可移动以用于更广泛的临床应用。
更新日期:2020-05-24
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