Fully-Automatic Method for Assessment of Flow-Mediated Dilation

Endothelial function in patients with critical and non-critical limb ischemia undergoing endovascular treatment

“…Next, a 120-second video clip of the brachial artery in B-mode was recorded to calculate the post-occlusion brachial artery diameter. Continuous analysis of changes in the artery diameter were performed during post-processing by means of a walltracking computer system developed by Zielinski et al at the authors' laboratory [14].The maximal diameter (maximal FMD -%FMD) was obtained using a semi-automatic technique, operating on the basis of the two regions of interest (ROI), indicating the anterior and posterior artery wall marked by the operator on the first frame of the ultrasound clip. The algorithm for tracking the borders of the arterial walls was based on the active contour method.…”