A noninvasive method for measuring compliance of the finger vessels was tested in six subjects (three in the age range of 58-68 years and the other three in age range of 24-26 years). A photoplethysmographic waveform was used as an indicator of intravascular volume change, and an instrument using a finger cuff was used to measure the blood pressure. For each individual, several compliance measurements were taken at discrete values of local mean arterial pressure (P mean). There was a statistically significant difference in intravascular finger compliance between the younger and older subjects over a range of P mean from 40 to 60 mmHg.
|Original language||English (US)|
|Number of pages||2|
|Journal||Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings|
|Volume||11 pt 1|
|State||Published - Nov 1 1989|
|Event||Images of the Twenty-First Century - Proceedings of the 11th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 1 - Seattle, WA, USA|
Duration: Nov 9 1989 → Nov 12 1989