1 May 2008 In vivo optical coherence tomography detection of differences in regional large airway smoke inhalation induced injury in a rabbit model
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Abstract
Smoke inhalation injury causes acute airway injury that may result in airway compromise with significant morbidity and mortality. We investigate the ability of high resolution endobronchial optical coherence tomography (OCT) to obtain real-time images for quantitatively assessing regional differences between upper tracheal versus lower tracheal and bronchial airway injury responses to smoke inhalation in vivo using a prototype spectral domain (SLD)-OCT system we constructed, and flexible fiber optic probes. 33 New Zealand White rabbits are intubated and mechanically ventilated. The treatment groups are exposed to inhaled smoke. The OCT probe is introduced through the endotracheal tube and maintained in place for 5 to 6 h. Images of airway mucosa and submucosa are obtained at baseline and at specified intervals postexposure. Starting within less than 15 min after smoke inhalation, there is significant airway thickening in the smoke-exposed animals. This is maintained over 5 h of imaging studies. The lower tracheal airway changes, correlating closely with carboxyhemoglobin levels, are much greater than upper tracheal changes. Significant differences are seen in lower trachea and bronchi after acute smoke inhalation compared to upper trachea as measured in vivo by minimally invasive OCT. OCT is capable of quantitatively detecting regional changes in airway swelling following inhalation injury.
© (2008) Society of Photo-Optical Instrumentation Engineers (SPIE)
Matthew Brenner, Matthew Brenner, Kelly Kreuter, Kelly Kreuter, Johnny Ju, Johnny Ju, Sari B. Mahon, Sari B. Mahon, Lillian Tseng, Lillian Tseng, David Mukai, David Mukai, Tanya Burney, Tanya Burney, Shuguang Guo, Shuguang Guo, Jiangping Su, Jiangping Su, Andrew Tran, Andrew Tran, Andriy Batchinsky, Andriy Batchinsky, Leopoldo C. Cancio, Leopoldo C. Cancio, Navneet Narula, Navneet Narula, Zhongping Chen, Zhongping Chen, } "In vivo optical coherence tomography detection of differences in regional large airway smoke inhalation induced injury in a rabbit model," Journal of Biomedical Optics 13(3), 034001 (1 May 2008). https://doi.org/10.1117/1.2939400 . Submission:
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