wire bias
Tendency of guidewire tip to preferentially track toward one branch at vessel bifurcations.
Full Definition
Wire bias refers to the natural tendency of coronary guidewires to favor one branch over another at bifurcation points due to factors including wire tip configuration, vessel angles, and flow dynamics. This phenomenon significantly impacts interventional strategy, particularly in bifurcation lesions where precise wire positioning is crucial. Understanding wire bias helps operators predict wire behavior and develop appropriate techniques for accessing side branches. Factors influencing wire bias include wire tip load, vessel diameter ratios, bifurcation angles, and the presence of calcification or stenosis. Managing wire bias may require specialized techniques, alternative wire selection, or buddy wire placement.
Usage
Usage note: Describe the favored branch direction when documenting wire bias effects.
In Context
- "Wire bias toward the diagonal branch required multiple attempts to access the LAD." — Interventional procedure note
- "Understanding wire bias helped predict successful side branch access during the bifurcation intervention." — Technical procedure documentation