Fig. 1
Procedure of ET-OCT and NP-OCT scanning in vivo and ex vivo miniature pigs (right side). A, View of the eustachian tube nasopharyngeal region and adjacent structures under nasal endoscopy. Eustachian tube pharyngeal orifice (black rectangle), nasopharynx (
). B, ET-OCT probe (
) was inserted into the eustachian tube (
) and ET-OCT scanning was performed. C, NP-OCT image acquisition in progress. D, the skull was split in half along the nasal septum, exposing the pharyngeal opening of ET, nasopharynx, pharyngeal recess, postnaris, skull base, palate. E, ET-OCT image acquisition ex vivo. Eustachian tube (
). F, NP-OCT image acquisition ex vivo. Nasopharynx (
)