Figure 2From: Evaluation of endoscopic vein extraction on structural and functional viability of saphenous vein endothelium Esterase activity in the OSVH and VsEVH samples: Representative images showing similar esterase activity and viability (green fluorescence) in both samples (a and b). Both techniques caused minimal visible damage to the vessels as indicated by attenuated red fluorescence in endothelial and smooth vessel regions (c and d). Magnification = 400 ×.Back to article page