Since the recognition that entry factors of SARS-CoV-2 are highly expressed in the nasal epithelium, a custom personal protection booth was developed to enable intranasal µOCT studies to be safely performed on Covid-positive subjects. The booth was designed to preserve familiarity of the prior established intranasal imaging techniques used by clinicians. A group of Covid-positive subjects (n=13) were imaged, shortly after onset of symptoms (7.8 ± 3.7 days). Historical data from healthy controls (n=10) were included in the study. While the blinded analysis is underway, an interim analysis of the µOCT data revealed several notable abnormalities in the nasal epithelium including delayed mucociliary transport, epithelial injury, and high inflammatory cell count in a pilot cohort. We anticipate that the pathophysiologies captured by intranasal µOCT will provide invaluable insights to the mechanisms of Covid-19 related mucociliary dysfunction.
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