Key result
Vector flow imaging suggests measuring at least 3.5 cm upstream of femoral bifurcations minimizes multidirectional flows.
Why the study?
Current ultrasound scanning guidelines recommending 2-3 cm to avoid multidirectional flow contamination in the femoral artery lack supporting evidence.
Does vector flow imaging identify the optimal distance to avoid multidirectional flow contamination in the femoral artery?
Observational
Does vector flow imaging identify the optimal distance to avoid multidirectional flow contamination in the femoral artery?
Vector flow imaging suggests femoral artery ultrasound measurements should be taken at least 3.5 cm upstream from the bifurcation to avoid multidirectional flow contamination, challenging current 2-3 cm guidelines.
Supports reevaluation of femoral ultrasound sites; leaves open prospective validation before any guideline revision.
Current ultrasound scanning guidelines to avoid multidirectional flow contamination in the femoral artery of 2-3 cm lack supporting evidence. We used vector flow imaging to report the multidirectional flow length during rest and manipulation of downstream vessel resistance in males and females. We suggest measurements at least 3.5 cm upstream from the femoral bifurcation to minimize multidirectional flows. This study also supports reliability of vector flow imaging for femoral artery assessments, with good-to-excellent reproducibility of results.
No takes yet. Share an insight, caveat, or question.
Cohen et al. (2024) conducted an observational in Multidirectional blood flow in the femoral artery. Vector flow imaging was evaluated on Multidirectional flow length. Vector flow imaging suggests measurements should be taken at least 3.5 cm upstream from the femoral bifurcation to minimize multidirectional flows.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: