Title :
Spontaneous fluctuation in the tissue blood volume and the systolic blood volume increase
Author :
Nitzan, Meir ; Babchenko, Anatoli ; Turivnenko, Sergei ; Khanokh, Boris
Author_Institution :
Jerusalem Coll. of Technol., Israel
Abstract :
The tissue blood volume and the systolic blood volume increase can be measured, in relative terms, by means of photoplethysmography-the measurement of the absorption of light by the blood. The values of the blood volume and the systolic blood volume increase fluctuate due to the fluctuating intensity of the autonomic nervous system activity. In this study, these fluctuations were investigated. Positive correlation was found between the blood volume and the systolic blood volume increase and negative correlation between the latter two and arterial blood pressure
Keywords :
biomedical measurement; blood; blood pressure measurement; cardiology; light absorption; neurophysiology; 840 nm; LED light source; arterial blood pressure; autonomic nervous system activity; fluctuating intensity; light absorption; negative correlation; photoplethysmography; positive correlation; spontaneous fluctuation; systolic blood volume increase; tissue blood volume; Absorption; Arterial blood pressure; Autonomic nervous system; Fluctuations; Frequency; Heart; Light sources; Pressure measurement; Smoothing methods; Volume measurement;
Conference_Titel :
Electrical and Electronics Engineers in Israel, 1996., Nineteenth Convention of
Conference_Location :
Jerusalem
Print_ISBN :
0-7803-3330-6
DOI :
10.1109/EEIS.1996.566936
