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Updated: Aug 15, 2026
Ultrasound Assessment of Endothelial-Dependent Flow-Mediated Vasodilation of the Brachial Artery in Clinical Research
Published on: October 22, 2014
Comparison of B-mode and echo tracking methods of assessing flow-mediated dilation
Aaron S Kelly1, Daniel R Kaiser, Donald R Dengel
1University of Minnesota, Minneapolis, Minnesota 55102, USA.
Abstract:
The aim of this study was to compare B-mode and echo tracking methods to assess endothelium-dependent flow-mediated dilation (FMD). Baseline brachial artery diameter, 60-s post cuff release diameter and FMD percent were assessed in 17 normal, healthy individuals using both techniques. Mean values for baseline diameter, 60-s diameter and FMD for M-mode were 3.83 +/- 0.69 mm, 4.06 +/- 0.66 mm and 6.35 +/- 3.98%, respectively. Mean values for baseline diameter, 60-s diameter and FMD for B-mode were 3.75 +/- 0.65 mm, 4.00 +/- 0.63 mm and 6.91 +/- 2.85%, respectively. Results, as displayed by Bland-Altman graphs, indicate a strong agreement between B-mode and echo tracking methods of assessing brachial artery diameter changes via FMD.
