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We present the use of fiber optic microendoscopy to image bacterial infection in the skin and lungs using an animal
model. The contact probe microendoscope we have constructed has a 4 μm resolution, a 750 μm field of view, and a 1
mm outer diameter. Well resolved regions of bacterial infection were imaged for subcutaneous inocula of 106 to 101
CFU and intra-tracheal inocula of 108 to 106 CFU. Results reveal a linear relationship between average fluorescence and
CFU, suggesting potential for using this device for quantitative analysis. Detection limits of 104 CFU for skin samples
and 107 CFU for lung tissue were determined. In addition, bacteria were also qualitatively visible in lung tissue down to
106 CFU. Confocal imaging was used to confirm the presence of bacteria in tissue samples.
Nooman Mufti,Ying Kong,Jeffrey D. Cirillo, andKristen C. Maitland
"Detection of bacterial infection with a fiber optic microendoscope", Proc. SPIE 8092, Medical Laser Applications and Laser-Tissue Interactions V, 80920A (2 June 2011); https://doi.org/10.1117/12.896553
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Nooman Mufti, Ying Kong, Jeffrey D. Cirillo, Kristen C. Maitland, "Detection of bacterial infection with a fiber optic microendoscope," Proc. SPIE 8092, Medical Laser Applications and Laser-Tissue Interactions V, 80920A (2 June 2011); https://doi.org/10.1117/12.896553