Numerical study of stenotic side branch hemodynamics in true bifurcation lesions
Numerical models were generated to investigate stenotic side branch hemodynamics. We studied the effect of stenosis severity and location on WSS and blood perfusion. Low blood perfusion was found in type (1,0,1), corresponding to branch steal. Critically low WSS developed along the outer wall in the SB of lesion type (1,0,1). This is counterintuitive to the Medina classification where (1,1,1) is most severe.
medina classification coronary bifurcation pulsatile flow left main coronary artery atherosclerosis coronary artery disease wall shear stress