In the graph depicting pressure and flow distribution (Q_starling/Q_col) between a compartment with pressure P_ext and collateral outflow with pressure P_v, parameters can be adjusted by dragging the corresponding labels.
Venous steal is the flow diversion (Q_starling/Q_col) that occurs when P_v<P_ext.
In this graph:
The ratio of compartment to collateral vascular conductance is assumed to be 1:1.
The ratio of post-stenotic inflow pressure (P_d) to systemic pressure (P_a), defined as FFR, is assumed to be 0.5.
Pranevičius, M.; Makackas, D.; Macas, A.; Petrikonis, K.; Šakalytė, G.; Pranevičius, O.; Benetis, R. Concept of Venous Steal: The Impact of Vascular Stenosis and Outflow Pressure Gradient on Blood Flow Diversion. Preprints 2025, 2025022149. https://doi.org/10.20944/preprints202502.2149.v1