FIG. 2.

Chronic OR-PAM and OCT images showing the vasculature and scaffold/tissue construct for an inverse opal scaffold with a pore size of 200 μm. (A–C) PAM MAP images showing the development of blood vessels at 2, 4, and 6 weeks postimplantation, respectively. (D–F) The corresponding OCT MAP images showing the scaffold/tissue construct. MAP stands for maximum amplitude projection. The signals from the skin layer were removed from all the OCT images to show the surface of the scaffold more clearly. Arrowheads indicate examples of local increase in pore size over time due to degradation of the scaffold. PAM, photoacoustic microscopy; OR-PAM, optical-resolution PAM; OCT, optical coherence tomography. Color images available online at www.liebertpub.com/tec