Title
ANALYSIS OF THE VASCULAR UNLOADING TECHNIQUE FOR BLOOD PRESSURE MEASUREMENT BY USE OF A CIRCULATORY SYSTEM MODEL.
Document Type
Conference Proceeding
Date of Original Version
12-1-1987
Abstract
A study to relate the accuracy and repeatability of the vascular unloading technique of blood pressure measurement to vascular system parameters is described. Difference-differential equations of fluid flow in distensible tubes were used to obtain pressure-flow-volume relationships for the blood vessels of the human finger. The radii, lengths and numbers of variously sized vessels in the finger were extrapolated from previously obtained data, and a segmented hemodynamic model was constructed. This model accounts for the blood volume changes in the vessels due to variations in vascular compliance and blood pressure. Volume changes due to counter-pressure applied to the finger vasculature were calculated using the model. The model results were verified by comparing them to measured pressure-volume signals in the human finger. The model was shown to agree closely with experimental measurements of pressure, flow, and volume.
Publication Title, e.g., Journal
Bioengineering, Proceedings of the Northeast Conference
Citation/Publisher Attribution
Ohley, W. J., and J. A. Kim. "ANALYSIS OF THE VASCULAR UNLOADING TECHNIQUE FOR BLOOD PRESSURE MEASUREMENT BY USE OF A CIRCULATORY SYSTEM MODEL.." Bioengineering, Proceedings of the Northeast Conference (1987): 162-165. https://digitalcommons.uri.edu/ele_facpubs/907