Plethysmography

 

The peripheral blood flow can be measured using venous occlusion plethysmography (VOP). VOP measures the volume change in a segment of a limb when blood flow to the venous return is occluded proximally using a pressure cuff. Arterial and venous blood flow distally are occluded distally. Measurement of the limb segment volume change over time will give an indication of the arterial blood flow coming into the limb segment. (Figure 29) Instrumentation design in this method of measuring blood flow also involves different types of systems to measure limb volume change.

 

Figure 29 Venous Occlusion Plethysmograph for Measurement of Peripheral Blood Flow [2]

 

Return to the Introduction

Move back to Transducers and their Applications

Move forward to Indicator Dilution Method

 

 
Support for the development of this module was provided by the National Science Foundation and The Cooper Union for the Advancement of Science and Art.
 

Please send questions or comments to Professor Ron Adrezin or Professor Daniel Raichel.