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Variations in microanatomy of the human cochlea.

Avci E, Nauwelaers T, Lenarz T, Hamacher V, Kral A - J. Comp. Neurol. (2014)

Bottom Line: At the lateral region, the height decreased significantly at the beginning of the second turn.We found a correlation between the length of the RC and that of the ST.These differences could have considerable implications for approaches to the design of CI arrays, especially in terms of their ability to preserve residual hearing during insertion of the electrode array.

View Article: PubMed Central - PubMed

Affiliation: Cluster of Excellence Hearing4all, Institute of AudioNeuroTechnology and Department of Experimental Otology, Ear, Nose, and Throat Clinics, Hannover Medical University, Hannover, 30625, Germany.

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The average horizontal position of the largest circle of the scala tympani (ST). Horizontal distance from the center of the circle (C) to the lateral edge (L) was used to calculate the relative position of the circle. The largest circle was mainly located at the center-modiolar region of the ST.
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fig10: The average horizontal position of the largest circle of the scala tympani (ST). Horizontal distance from the center of the circle (C) to the lateral edge (L) was used to calculate the relative position of the circle. The largest circle was mainly located at the center-modiolar region of the ST.

Mentions: To quantify the optimal position of the electrode array giving the smallest probability of damaging the basilar membrane, we also calculated the relative position of the center of the largest circle in the horizontal plane of the cross section (Fig. 10). The location of the circle was relatively constant and was located at the center or center/modiolar region of the scala. This illustrates again that the largest space is located at the central region of the ST and that, at this position, the likelihood of contact with the cochlear structure is lowest.


Variations in microanatomy of the human cochlea.

Avci E, Nauwelaers T, Lenarz T, Hamacher V, Kral A - J. Comp. Neurol. (2014)

The average horizontal position of the largest circle of the scala tympani (ST). Horizontal distance from the center of the circle (C) to the lateral edge (L) was used to calculate the relative position of the circle. The largest circle was mainly located at the center-modiolar region of the ST.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4265794&req=5

fig10: The average horizontal position of the largest circle of the scala tympani (ST). Horizontal distance from the center of the circle (C) to the lateral edge (L) was used to calculate the relative position of the circle. The largest circle was mainly located at the center-modiolar region of the ST.
Mentions: To quantify the optimal position of the electrode array giving the smallest probability of damaging the basilar membrane, we also calculated the relative position of the center of the largest circle in the horizontal plane of the cross section (Fig. 10). The location of the circle was relatively constant and was located at the center or center/modiolar region of the scala. This illustrates again that the largest space is located at the central region of the ST and that, at this position, the likelihood of contact with the cochlear structure is lowest.

Bottom Line: At the lateral region, the height decreased significantly at the beginning of the second turn.We found a correlation between the length of the RC and that of the ST.These differences could have considerable implications for approaches to the design of CI arrays, especially in terms of their ability to preserve residual hearing during insertion of the electrode array.

View Article: PubMed Central - PubMed

Affiliation: Cluster of Excellence Hearing4all, Institute of AudioNeuroTechnology and Department of Experimental Otology, Ear, Nose, and Throat Clinics, Hannover Medical University, Hannover, 30625, Germany.

Show MeSH
Related in: MedlinePlus