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Fractional flow reserve and the influence of bifurcation angle and degree of stenosis
European Bifurcation Club 2015 – EBC 2015 – Athens, Greece
Novel insights from bench and simulation
Fractional flow reserve and the influence of bifurcation angle and degree of stenosis
Author: C. Chiastra, Politecnico di Milano, Milano, Italy
CONCLUSION
- Pressure drop – flow relationship across the SB stenosis is quadratic
- SB flow resistance is higher when the distal angle is larger in bifurcations with severe SB stenosis
- Consideration on FFR in bifurcations:
- DISTAL MAIN BRANCH: FFR is combined result of distal and proximal main branch stenosis
- SB stenosis has minimal effect on FFR
- distal angle has minimal influence on FFR
- SIDE BRANCH: FFR is combined result of side branch and proximal stenosis
- large influence of distal angle on FFR when SB stenosis is severe