Show pageBacklinksCite current pageExport to PDFBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. The arterial resistivity index (also called as Resistance index, abbreviated as RI), developed by Leandre Pourcelot, is a measure of pulsatile blood flow that reflects the resistance to blood flow caused by microvascular bed distal to the site of measurement. 0 Continuous flow 1 Systolic flow, but no diastolic flow (> 1) Reversed diastolic flow The RI is altered not by vascular resistance alone but by the combination of vascular resistance and vascular compliance. resistance_index.txt Last modified: 2024/06/07 02:59by 127.0.0.1