Title :
Analysis of the diurnal variation of arterial pressure waves
Author :
Rauchberger, Ilan ; Cohen, Marc ; Dart, Anthony
Author_Institution :
Dept. of Electr. & Comput. Syst. Eng., Monash Univ., Clayton, Vic., Australia
Abstract :
Pulse pressure waves (PPWs) were recorded from the radial artery using photoplethysmography in 7 healthy subjects (6M, 1F, mean age 23 yrs) at rest every 3 hours between 9 am and 6 pm. Analysis of variations of PPWs included sum of square differences between waves, ANOVA and spectral analysis of the components of waves. PPWs recorded at 9am were not significantly different to PPWs recorded at 6 pm, however, PPWs between each other time period were significantly different, with the largest difference occurring between 9 am and 3pm. There was also some variation in the frequency components of the PPWs with an increase in higher frequency components as the day progresses. The finding of this study supports the suggestion within TCM that there are changes in PPW throughout the day
Keywords :
blood pressure measurement; frequency-domain analysis; medical signal processing; plethysmography; spectral analysis; 23 y; 3 h; ANOVA; arterial pressure waves; diurnal variation analysis; frequency components variation; photoplethysmography; pulse pressure waves; radial artery; sum of square differences; Analysis of variance; Arterial blood pressure; Arteries; Australia; Biomedical monitoring; Blood pressure; Discrete wavelet transforms; Frequency; Medical diagnostic imaging; Transducers;
Conference_Titel :
Bioelectromagnetism, 1998. Proceedings of the 2nd International Conference on
Conference_Location :
Melbourne, Vic.
Print_ISBN :
0-7803-3867-7
DOI :
10.1109/ICBEM.1998.666455