Arterial resistivity index
Ultrasound measure of distal vascular resistance and compliance.
Last updated
The arterial resistivity index (RI), developed by Léandre Pourcelot, measures pulsatile blood flow to indicate resistance in the microvascular bed distal to the measurement site. It is used in ultrasound imaging to evaluate arteries and solid organ damage, and is altered by both vascular resistance and compliance.
Quick Facts
- Purpose
- measure of pulsatile blood flow
Facts from the source article.
More in Cardiovascular Diseases
Sources
Compiled from Wikipedia and the sources listed below. Text from Wikipedia is available under CC BY-SA 4.0; this entry is adapted from it.
- Wikipedia: Arterial resistivity index (CC BY-SA 4.0).
- Word definitions: the Codexery glossary, each quoted from its Wikipedia article.
Spotted an error? Know more?
Reader corrections go straight into our review queue. Suggest an edit · How this site is sourced
Comments
Loading…