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Figure 10 | BMC Cardiovascular Disorders

Figure 10

From: The in vivo performance of small-caliber nanofibrous polyurethane vascular grafts

Figure 10

Interaction of vascular grafts with the host tissue (× 200). Black arrows indicate vascular grafts, and white arrows indicate in-grown tissue. (A) A PU graft harvested 4 weeks after the surgery showing limited ingrowth of fibrous tissue. (B) A PTFE graft harvested 4 weeks after the surgery showing more extensive ingrowth of fibrous tissue. (C) A PU graft harvested 24 weeks after the surgery still showing limited ingrowth of fibrous tissue and no neointima thickening. (D) A PTFE graft harvested 24 weeks after the surgery showing substantially increased tissue infiltration and increased thickness of neointima.

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