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. Author manuscript; available in PMC: 2020 May 1.
Published in final edited form as: J Biophotonics. 2019 Jan 22;12(5):e201800307. doi: 10.1002/jbio.201800307

Figure 2.

Figure 2.

Representative longitudinal in vivo OCT and RAC images from two intubated critical care subjects using the catheter-based OCT system. The top row shows representative longitudinal OCT images of an ETT without a biofilm present (Subject 6, extubated after 3 days). The bottom row shows representative longitudinal OCT images of an ETT with the presence and development of a biofilm (Subject 2, extubated after 6 days). Note that the RAC values are represented by a colored circumferential ring around each OCT image that corresponds to the radial RAC value through the biological material present around the catheter.