Figure 7.

Internal surfaces of vascular grafts harvested 24 weeks after the surgery. (A) A PU graft showing a smooth and intact surface without thrombus or obvious neointimal hyperplasia. (B) A PTFE graft showing uneven surface and obvious neointimal hyperplasia (yellowish and stiffer).

Hu et al. BMC Cardiovascular Disorders 2012 12:115   doi:10.1186/1471-2261-12-115
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