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[Non-invasive evaluation of the endothelial function using high-resolution B-mode ultrasonography]
M De Michele1, L Ascione, P Guarini
1Dipartimento di Medicina Clinica e Sperimentale, Università degli Studi Federico II. demic@libero.it
Summary
Ultrasound non-invasively assesses endothelial function, crucial for cardiovascular health. Standardizing this method is key to improving atherosclerosis risk assessment.
Area of Science:
- Cardiovascular Science
- Vascular Biology
- Medical Imaging
Background:
- The vascular endothelium regulates critical functions like vasomotor tone, cell adhesion, and thrombosis.
- Endothelial dysfunction is implicated in both early and advanced atherosclerosis.
- Non-invasive assessment methods are needed for evaluating endothelial function in large populations.
Purpose of the Study:
- To introduce and validate an ultrasound-based method for non-invasively assessing endothelial function.
- To evaluate endothelial function in individuals with various cardiovascular risk factors.
Main Methods:
- Utilized ultrasound to measure changes in brachial artery diameter.
- Assessed endothelium-dependent dilation via reactive hyperemia induced by increased blood flow and shear stress.
Main Results:
- Developed a simple, valid ultrasound technique for non-invasive endothelial function assessment.
- Enabled evaluation in a large cohort with diverse cardiovascular risk factors.
Conclusions:
- Ultrasound-based assessment of endothelial function is a valuable tool.
- Further standardization of scanning and reading protocols is necessary to define normal values and reduce variability.