Mechanisms of Hearing Loss in a Guinea Pig Model of Superior Semicircular Canal Dehiscence

Figure 1

Surgical procedure for the SSCD model and schematic diagram of the laser Doppler vibrometer (LDV) detecting vibration at four locations: (a) anatomical landmarks of the superior semicircular canal (SCC), facial nerve (FN), and round window (RW), viewed from the opened middle ear cavity; (b) dehiscence created in the superior semicircular canal (SCC); (c) the incus, stapes head, round window membrane (RWM), and the medial side of the umbo, viewed from the opened middle ear cavity; (d) diagram of the LDV, as used in four locations to detect vibration.

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