Click on image to view larger version.

Figure 4 Optical coherence tomography image of a longitudinal cross-section of a nonatherosclerotic coronary artery. Top panel: elastin von Gieson staining of the artery of which the lumen is collapsed. M = media, A = adventitia. Bottom panel: the corresponding OCT image (scale is in centimeters) (with courtesy of T van Leeuwen and J Perree, Academic Medical Center, Amsterdam).