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. Author manuscript; available in PMC: 2009 Mar 2.
Published in final edited form as: J Thorac Cardiovasc Surg. 2008 Nov;136(5):1302–1308. doi: 10.1016/j.jtcvs.2008.05.060

FIGURE 1.

FIGURE 1

Localization of the optical coherence tomographic imaging probe within the radial artery. The infrared light emitted from the tip of the optical coherence tomographic probe (A) can easily be visualized through the luminal wall of the radial artery (arrow, B) during image acquisition. This enables external marking of abnormal areas of the artery, thereby providing a roadmap for selecting the optimal portion of the conduit for bypass. Imaging-guided biopsy specimens also can be obtained for histologic confirmation of optical coherence tomographic findings.