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Figure 2

From: Simpler and effective radiological evaluations for modiolar proximity of a slim modiolar cochlear implant electrode

Figure 2

A novel conventional CT-specific indicator for evaluation of modiolar proximity. (a) A schematic illustration explaining the modified intracochlear position index (ICPI) measurements technique. (b) Under two-axes’ cross modiolus on “Cochlear View”, the metrics reflecting modified intracochlear position index (ICPI) at four fixed points were measured on conventional computed tomography using ultra-high kernel specification with high-resolution index. These values were measured at fixed positions based on the two lines (red and blue) associated with the modiolus and the round window. M modiolus, E electrode contact, LW lateral wall, dist distance.

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