Title :
Analysis of blood pulse wave measured by reflective optical sensor
Author :
Tonooka, Kazuhiko ; Yabe, Katsumasa ; Nishimura, Okio ; Kawabata, Jun-Ichi
Author_Institution :
Gov. Ind. Dev. Lab., Sapporo, Japan
Abstract :
Spectrum analysis of a blood pulse wave (BPW) has been carried out by a novel optical measurement system. The BPW is detected at the second finger of a left hand by a photoelectric plethysmography. Spectrum analysis of the BPW reveals two independent signals, which are at about 1 Hz and 0.1 Hz. The higher-frequency signal is due to heart beats, and the lower signal is the result of breath. The BPW spectrum has been investigated in terms of frequency stability of heart rate (HR). The correlation coefficient between HR and standard deviation of HR in the amplitude spectrum is -0.90. The standard deviation of BPW in amplitude spectrum is presented as a parameter of the cardiovascular system.<>
Keywords :
biomedical measurement; haemodynamics; spectral analysis; 0.1 Hz; 1 Hz; blood pulse wave; cardiovascular system parameter; correlation coefficient; heart rate stability; left hand second finger; optical measurement system; photoelectric plethysmography; reflective optical sensor; spectrum analysis; standard deviation;
Conference_Titel :
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1988.94417
