Figure 3
OCT imaging in the TB3, right fixed human temporal bone. (a) Screen shot of the RWM with the projected plane of cross-sectional imaging. Red rectangle shows the area of the three-dimensional OCT scan. Red arrow shows the position of the cross-section plane (b) on the RWM, the arrow point corresponds to the inferior margin of the RWM and right side of the cross-sectional OCT image. (b) OCT image of the perpendicular section through the RWM shows the proximal part of the ST, SV and the micro-anatomical structures in between. The thickness of the RWM (red value) at the inferior margin was measured in ThorImage OCT 4.4 software with an assumed refractive index of 1.00. This position was chosen for thickness measurement, because it is located in the central part of the RWM and the thickness in this point consists exclusively of the axial component. (c) Cross-sectional synchrotron radiation phase contrast image through RWM of a right fixed human temporal bone as published by Agrawal et al. in 2018. (Adapted with permission from Open Access ref.10) is similar to (b), when rotated over 180°. BM: basilar membrane, OSL: osseous spiral lamina, RWM: round window membrane, SL: spiral ligament, SSL: secondary spiral lamina, ST: scala tympani, SV: scala vestibuli.
