包络线(雷达)
血压
波形
数学
材料科学
结构工程
医学
工程类
内科学
电气工程
电信
电压
雷达
作者
Fan Pan,Peiyu He,Yongjun Qian,Gao Hu,Fei Chen,Haipeng Liu,Dan Zheng
出处
期刊:Physiological Measurement
[IOP Publishing]
日期:2022-11-30
卷期号:43 (11): 115008-115008
被引量:2
标识
DOI:10.1088/1361-6579/aca26d
摘要
Objective.The oscillometric blood pressure (BP) measurement technique estimates BPs from analyzing the oscillometric cuff pressure waveform (oscillogram) envelope. The oscillogram envelope maximum is associated with physiological changes and influences BP measurement accuracy. We aim to quantitatively investigate the effect of BP and aging on the changes of oscillogram envelope maximum.Approach.Four hundred and sixty-two subjects (214 female, 248 male) were recruited. The cuff pressure was digitally recorded during linear cuff deflation to derive oscillogram envelopes and their maximums. Moderation analysis was performed to investigate whether the relationship between BP and envelope maximum was moderated by age. Subjects were divided into five age categories and three BP groups. The envelope maximums were compared between different BP and age categories to qualify their changes with increased BP and aging.Main results.Age has a significant moderating effect on the relationship between BP and envelope maximum (P < 0.05). The oscillogram envelope maximums increased significantly with increased BPs (P < 0.05 between each BP groups) and aging (P < 0.05 for > 60 years old groups in comparison with younger groups).Significance.This study experientially and theoretically concluded the BPs and aging are two important factors that influence the maximum value of the oscillogram envelope.
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