Abstract
The indicator-dilution technique is commonly used to determine mean flow estimates. The estimation of instantaneous flow from the shape of an indicator-dilution curve is the objective of this study. Based on a mixing chamber approach to the flow system, a mathematical relationship is derived to reconstruct momentary flow from an indicator-dilution curve. This relationship is verified in a model setup both with only constant flow and with a sinusoidal flow variation superimposed. This method proved to give good flow estimates for limited values of flow parameters. Also, some preliminary experiments were performed in a pulsating flow system simulating heart action. The results were promising although the method proved to be very sensitive to baseline offset.
| Original language | English |
|---|---|
| Pages (from-to) | 51-56 |
| Journal | Medical and Biological Engineering and Computing |
| Volume | 25 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1987 |