perfusion imaging
Advanced imaging technique measuring tissue blood flow and microvascular function using contrast agents or magnetic resonance methods.
Full Definition
Perfusion imaging encompasses various advanced imaging modalities designed to quantify tissue blood flow, microvascular function, and hemodynamic parameters at the capillary level. These techniques include CT perfusion, MR perfusion, and nuclear medicine approaches that measure parameters such as blood flow, blood volume, mean transit time, and permeability. In arterial vascular imaging, perfusion studies are particularly valuable for assessing tissue viability, collateral circulation adequacy, and treatment response following revascularization procedures. The technology enables detection of subclinical ischemia, evaluation of watershed territories, and monitoring of therapeutic interventions. Modern perfusion imaging provides quantitative maps of tissue hemodynamics with high spatial and temporal resolution.
Usage
Usage note: Specify imaging modality (CT, MR, nuclear) when referencing specific perfusion techniques.
In Context
- "Perfusion imaging revealed improved tissue blood flow following successful angioplasty." — Post-intervention assessment
- "The perfusion imaging protocol included both rest and stress acquisitions for comprehensive evaluation." — Imaging methodology