Objective: The aim of the study was to determine the intra- and inter-reliability for measuring infants with plagiocephaly and brachycephaly with a craniometer when using a marked headband as landmarks. Subjects: Six ...Objective: The aim of the study was to determine the intra- and inter-reliability for measuring infants with plagiocephaly and brachycephaly with a craniometer when using a marked headband as landmarks. Subjects: Six physiotherapists and eight infants participated in the study. Methods: The physiotherapists measured all infants twice;each infant was measured with the same headband and craniometer. The physiotherapists were blinded to measurements carried out by their colleagues. The infants with their parents changed places in the room to minimize the possibility that the physiotherapists would remember their first measurements of any infant. Results: There was a high intra- and inter-reliability, for intra-reliability ICC 0.96 to 0.99 and for inter-reliability ICC 0.98. Conclusion: It is possible to achieve a high intra- and inter-reliability when using a headband and craniometer when measuring cranial vault asymmetry for plagiocephaly and cephalic ratio for brachycephaly.展开更多
为了提高无创血压连续测量的便捷性和准确度,提出了一种基于脉搏波传导时间(PTT)的头戴式血压测量方法,该方法将光电容积脉搏波(PPG)信号和心电(ECG)信号的采集集中在头部,将PPG信号一阶微分最大点与ECG信号R波峰的时间差值作为脉搏波...为了提高无创血压连续测量的便捷性和准确度,提出了一种基于脉搏波传导时间(PTT)的头戴式血压测量方法,该方法将光电容积脉搏波(PPG)信号和心电(ECG)信号的采集集中在头部,将PPG信号一阶微分最大点与ECG信号R波峰的时间差值作为脉搏波传导时间,并在血压的计算中加入了卡尔曼滤波器。实验结果表明,利用改进方法计算出的血压值平均误差率在5%以内,数据误差均在10 mm Hg以内,能够满足连续血压测量误差的要求;与传统方法相比,稳定性更好,误差率更小,最大误差更小。展开更多
Sleep disorders affect an individual’s ability to sleep well on a regular and natural basis. Inadequate sleep can have adverse outcomes for health and safety. Electroencephalogram (EEG) has been presented as an authe...Sleep disorders affect an individual’s ability to sleep well on a regular and natural basis. Inadequate sleep can have adverse outcomes for health and safety. Electroencephalogram (EEG) has been presented as an authentic indicator to monitor brain activities. In this review paper, different procedures of EEG tests for recording and monitoring brain activity during sleep such as the EEG electrodes system and the Dreem headband (DH) have been introduced. Also, the processes of recording and analyzing the data have been discussed and compared with each other. The results of various stages of sleep from EEG tests help sleep specialists diagnose or evaluate sleep disorders accurately and choose appropriate strategies. Sleep disorder management is integral to provide patients with a safe sleeping environment.展开更多
目的:设计一种头戴式血压测量装置,实现连续血压(blood pressure,BP)测量的便捷性。方法:该装置利用脉搏波速法采集脸颊的心电(electrocardiogram,ECG)信号和额头的脉搏波(photoplethysmography,PPG)信号,将PPG信号最大值点与ECG信号R...目的:设计一种头戴式血压测量装置,实现连续血压(blood pressure,BP)测量的便捷性。方法:该装置利用脉搏波速法采集脸颊的心电(electrocardiogram,ECG)信号和额头的脉搏波(photoplethysmography,PPG)信号,将PPG信号最大值点与ECG信号R波峰的时间差值作为脉搏波传导时间(pulse transit time,PTT),利用线性模型计算BP。结果:通过一系列实验表明,与传统无创测量法相比,该装置测量的BP值平均误差率在6%以内,数据误差在10 mm Hg(1 mm Hg=133.322 Pa)以内,能够满足美国医疗仪器促进协会(The Association for the Advancement of Medical Instrumentation,AAMI)国际标准对无创BP监测的要求。结论:该装置不仅实现了对BP的连续、可靠测量,而且佩戴灵活方便、舒适性强,测量精度较高,在远程医疗、智慧医疗、生命关怀等众多领域具有广泛的应用前景。展开更多
文摘Objective: The aim of the study was to determine the intra- and inter-reliability for measuring infants with plagiocephaly and brachycephaly with a craniometer when using a marked headband as landmarks. Subjects: Six physiotherapists and eight infants participated in the study. Methods: The physiotherapists measured all infants twice;each infant was measured with the same headband and craniometer. The physiotherapists were blinded to measurements carried out by their colleagues. The infants with their parents changed places in the room to minimize the possibility that the physiotherapists would remember their first measurements of any infant. Results: There was a high intra- and inter-reliability, for intra-reliability ICC 0.96 to 0.99 and for inter-reliability ICC 0.98. Conclusion: It is possible to achieve a high intra- and inter-reliability when using a headband and craniometer when measuring cranial vault asymmetry for plagiocephaly and cephalic ratio for brachycephaly.
文摘为了提高无创血压连续测量的便捷性和准确度,提出了一种基于脉搏波传导时间(PTT)的头戴式血压测量方法,该方法将光电容积脉搏波(PPG)信号和心电(ECG)信号的采集集中在头部,将PPG信号一阶微分最大点与ECG信号R波峰的时间差值作为脉搏波传导时间,并在血压的计算中加入了卡尔曼滤波器。实验结果表明,利用改进方法计算出的血压值平均误差率在5%以内,数据误差均在10 mm Hg以内,能够满足连续血压测量误差的要求;与传统方法相比,稳定性更好,误差率更小,最大误差更小。
文摘Sleep disorders affect an individual’s ability to sleep well on a regular and natural basis. Inadequate sleep can have adverse outcomes for health and safety. Electroencephalogram (EEG) has been presented as an authentic indicator to monitor brain activities. In this review paper, different procedures of EEG tests for recording and monitoring brain activity during sleep such as the EEG electrodes system and the Dreem headband (DH) have been introduced. Also, the processes of recording and analyzing the data have been discussed and compared with each other. The results of various stages of sleep from EEG tests help sleep specialists diagnose or evaluate sleep disorders accurately and choose appropriate strategies. Sleep disorder management is integral to provide patients with a safe sleeping environment.
文摘目的:设计一种头戴式血压测量装置,实现连续血压(blood pressure,BP)测量的便捷性。方法:该装置利用脉搏波速法采集脸颊的心电(electrocardiogram,ECG)信号和额头的脉搏波(photoplethysmography,PPG)信号,将PPG信号最大值点与ECG信号R波峰的时间差值作为脉搏波传导时间(pulse transit time,PTT),利用线性模型计算BP。结果:通过一系列实验表明,与传统无创测量法相比,该装置测量的BP值平均误差率在6%以内,数据误差在10 mm Hg(1 mm Hg=133.322 Pa)以内,能够满足美国医疗仪器促进协会(The Association for the Advancement of Medical Instrumentation,AAMI)国际标准对无创BP监测的要求。结论:该装置不仅实现了对BP的连续、可靠测量,而且佩戴灵活方便、舒适性强,测量精度较高,在远程医疗、智慧医疗、生命关怀等众多领域具有广泛的应用前景。
