Figure 1From: Insights into the pathogenesis of vein graft disease: lessons from intravascular ultrasoundIncreases in wall thickness versus time after surgery. Wall area expressed as a percentage of total vessel area (%VWA) exceeded 40% and reached a plateau state after 6 months in angiographically normal vessels. Reproduced with permission from Higuchi et al, Heart Vessels 2002, 17:57–60, Springer – Verlag, Heidelberg, Germany [16].Back to article page